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diff --git a/docs/requirements/NB_interface.rst b/docs/requirements/NB_interface.rst deleted file mode 100644 index 8dba601..0000000 --- a/docs/requirements/NB_interface.rst +++ /dev/null @@ -1,1061 +0,0 @@ -.. This work is licensed under a Creative Commons Attribution 4.0 International License. -.. http://creativecommons.org/licenses/by/4.0 - -.. _northbound_API: - -Detailed northbound interface specification -=========================================== - -.. Note:: - This is Work in Progress. - -ETSI NFV IFA Information Models -------------------------------- - -Compute Flavor -^^^^^^^^^^^^^^ - -A compute flavor includes information about number of virtual CPUs, size of -virtual memory, size of virtual storage, and virtual network interfaces -[NFVIFA005]_. - -.. figure:: images/computeflavor.png - :name: computeflavor - :width: 90% - -Virtualised Compute Resources ------------------------------ - -Compute Capacity Management -^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -Subscribe Compute Capacity Change Event -""""""""""""""""""""""""""""""""""""""" - -Subscription from Consumer to VIM to be notified about compute capacity changes - -.. http:post:: /capacity/compute/subscribe - :noindex: - - **Example request**: - - .. sourcecode:: http - - POST /capacity/compute/subscribe HTTP/1.1 - Accept: application/json - - { - "zoneId": "12345", - "computeResourceTypeId": "vcInstances", - "threshold": { - "thresholdType" : "absoluteValue", - "threshold": { - "capacity_info": "available", - "condition": "lt", - "value": 5 - } - } - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 201 CREATED - Content-Type: application/json - - { - "created": "2015-09-21T00:00:00Z", - "capacityChangeSubscriptionId": "abcdef-ghijkl-123456789" - } - - :statuscode 400: computeResourceTypeId is missing - -Query Compute Capacity for a defined resource type -"""""""""""""""""""""""""""""""""""""""""""""""""" - -Request to find out about available, reserved, total and allocated compute -capacity. - -.. http:get:: /capacity/compute/query - :noindex: - - **Example request**: - - .. sourcecode:: http - - GET /capacity/compute/query HTTP/1.1 - Accept: application/json - - { - "zoneId": "12345", - "computeResourceTypeId": "vcInstances", - "timePeriod": { - "startTime": "2015-09-21T00:00:00Z", - "stopTime": "2015-09-21T00:05:30Z" - } - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 200 OK - Content-Type: application/json - - { - "zoneId": "12345", - "lastUpdate": "2015-09-21T00:03:20Z", - "capacityInformation": { - "available": 4, - "reserved": 17, - "total": 50, - "allocated": 29 - } - } - - :query limit: Default is 10. - :statuscode 404: resource zone unknown - - -Query Compute Capacity with required attributes -""""""""""""""""""""""""""""""""""""""""""""""" -Request to find out available compute capacity with given characteristics - -.. http:get:: /capacity/compute/query - :noindex: - - **Example request**: - - .. sourcecode:: http - - GET /capacity/compute/query HTTP/1.1 - Accept: application/json - - { - "zoneId": "12345", - "resourceCriteria": { - "virtualCPU": { - "cpuArchitecture": "x86", - "numVirtualCpu": 8 - } - }, - "attributeSelector": "available", - "timePeriod": { - "startTime": "2015-09-21T00:00:00Z", - "stopTime": "2015-09-21T00:05:30Z" - } - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 200 OK - Content-Type: application/json - - { - "zoneId": "12345", - "lastUpdate": "2015-09-21T00:03:20Z", - "capacityInformation": { - "available": 50 - } - } - - :query limit: Default is 10. - :statuscode 404: resource zone unknown - -Notify Compute Capacity Change Event -"""""""""""""""""""""""""""""""""""" - -Notification about compute capacity changes - -.. http:post:: /capacity/compute/notification - :noindex: - - **Example notification**: - - .. sourcecode:: http - - Content-Type: application/json - - { - "zoneId": "12345", - "notificationId": "zyxwvu-tsrqpo-987654321", - "capacityChangeTime": "2015-09-21T00:03:20Z", - "resourceDescriptor": { - "computeResourceTypeId": "vcInstances" - }, - "capacityInformation": { - "available": 4, - "reserved": 17, - "total": 50, - "allocated": 29 - } - } - -Compute Resource Reservation -^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -Create Compute Resource Reservation -""""""""""""""""""""""""""""""""""" - -Request the reservation of compute resource capacity - -.. http:post:: /reservation/compute/create - :noindex: - - **Example request**: - - .. sourcecode:: http - - POST /reservation/compute/create HTTP/1.1 - Accept: application/json - - { - "startTime": "2015-09-21T01:00:00Z", - "computePoolReservation": { - "numCpuCores": 20, - "numVcInstances": 5, - "virtualMemSize": 10 - } - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 201 CREATED - Content-Type: application/json - - { - "reservationData": { - "startTime": "2015-09-21T01:00:00Z", - "reservationStatus": "initialized", - "reservationId": "xxxx-yyyy-zzzz", - "computePoolReserved": { - "numCpuCores": 20, - "numVcInstances": 5, - "virtualMemSize": 10, - "zoneId": "23456" - } - } - } - -or virtualization containers - -.. http:post:: reservation/compute/create - :noindex: - - **Example request**: - - .. sourcecode:: http - - POST /reservation/compute/create HTTP/1.1 - Accept: application/json - - { - "startTime": "2015-10-05T15:00:00Z", - "virtualizationContainerReservation": [ - { - "containerId": "myContainer", - "containerFlavor": { - "flavorId": "myFlavor", - "virtualCpu": { - "numVirtualCpu": 2, - "cpuArchitecture": "x86" - }, - "virtualMemory": { - "numaEnabled": "False", - "virtualMemSize": 16 - }, - "storageAttributes": { - "typeOfStorage": "volume", - "sizeOfStorage": 16 - } - } - } - ] - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 201 CREATED - Content-Type: application/json - - { - "reservationData": { - "startTime": "2015-10-05T15:00:00Z", - "reservationId": "aaaa-bbbb-cccc", - "reservationStatus": "initialized", - "virtualizationContainerReserved": [ - { - "containerId": "myContainer", - "flavorId": "myFlavor", - "virtualCpu": { - "numVirtualCpu": 2, - "cpuArchitecture": "x86" - }, - "virtualMemory": { - "numaEnabled": "False", - "virtualMemSize": 16 - }, - "virtualDisks": { - "storageId": "myStorage", - "flavourId": "myStorageFlavour", - "typeOfStorage": "volume", - "sizeOfStorage": 16, - "operationalState": "enabled" - } - } - ] - } - } - - - -Query Compute Resource Reservation -"""""""""""""""""""""""""""""""""" - -Request to find out about reserved compute resources that the consumer has -access to. - -.. http:get:: /reservation/compute/query - :noindex: - - **Example request**: - - .. sourcecode:: http - - GET /reservation/compute/query HTTP/1.1 - Accept: application/json - - { - "queryReservationFilter": [ - { - "reservationId": "xxxx-yyyy-zzzz" - } - ] - - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 200 OK - Content-Type: application/json - - { - "queryResult": - { - "startTime": "2015-09-21T01:00:00Z", - "reservationStatus": "active", - "reservationId": "xxxx-yyyy-zzzz", - "computePoolReserved": - { - "numCpuCores": 20, - "numVcInstances": 5, - "virtualMemSize": 10, - "zoneId": "23456" - } - } - } - - :statuscode 404: reservation id unknown - -Update Compute Resource Reservation -""""""""""""""""""""""""""""""""""" - -Request to update compute resource reservation - -.. http:post:: /reservation/compute/update - :noindex: - - **Example request**: - - .. sourcecode:: http - - POST /reservation/compute/update HTTP/1.1 - Accept: application/json - - { - "startTime": "2015-09-14T16:00:00Z", - "reservationId": "xxxx-yyyy-zzzz" - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 201 CREATED - Content-Type: application/json - - { - "reservationData": { - "startTime": "2015-09-14TT16:00:00Z", - "reservationStatus": "active", - "reservationId": "xxxx-yyyy-zzzz", - "computePoolReserved": { - "numCpuCores": 20, - "numVcInstances": 5, - "virtualMemSize": 10, - "zoneId": "23456" - } - } - } - -Terminate Compute Resource Reservation -"""""""""""""""""""""""""""""""""""""" - -Request to terminate a compute resource reservation - -.. http:delete:: /reservation/compute/(reservation_id) - :noindex: - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 200 - Content-Type: application/json - - { - "reservationId": "xxxx-yyyy-zzzz", - } - - -Subscribe Resource Reservation Change Event -""""""""""""""""""""""""""""""""""""""""""" - -Subscription from Consumer to VIM to be notified about changes -related to a reservation or to the resources associated to it. - -.. http:post:: /reservation/subscribe - :noindex: - - **Example request**: - - .. sourcecode:: http - - POST /reservation/subscribe HTTP/1.1 - Accept: application/json - - { - "inputFilter": [ - { - "reservationId": "xxxx-yyyy-zzzz", - } - ] - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 201 CREATED - Content-Type: application/json - - { - "created": "2015-09-21T00:00:00Z", - "reservationChangeSubscriptionId": "abcdef-ghijkl-123456789" - } - - :statuscode 400: inputFilter is missing - - -Notify Resource Reservation Change Event -"""""""""""""""""""""""""""""""""""""""" - -Notification about changes in a compute resource reservation - -.. http:post:: /capacity/compute/notification - :noindex: - - **Example notification**: - - .. sourcecode:: http - - Content-Type: application/json - - { - "changeId": "aaaaaa-btgxxx-987654321", - "reservationId": "xxxx-yyyy-zzzz", - "vimId": "vim-CX-03" - "changeType": "Reservation time change" - "changedReservationData": { - "endTime": "2015-10-14TT16:00:00Z", - } - } - - - -Virtualised Network Resources ------------------------------ - -Network Capacity Management -^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -Subscribe Network Capacity Change Event -""""""""""""""""""""""""""""""""""""""" - -Susbcription from Consumer to VIM to be notified about network capacity changes - -.. http:post:: /capacity/network/subscribe - :noindex: - - **Example request**: - - .. sourcecode:: http - - POST /capacity/network/subscribe HTTP/1.1 - Accept: application/json - - { - "networkResourceTypeId": "publicIps", - "threshold": { - "thresholdType": "absoluteValue", - "threshold": { - "capacity_info": "available", - "condition": "lt", - "value": 5 - } - } - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 201 CREATED - Content-Type: application/json - - { - "created": "2015-09-28T00:00:00Z", - "capacityChangeSubscriptionId": "bcdefg-hijklm-234567890" - } - -Query Network Capacity -"""""""""""""""""""""" - -Request to find out about available, reserved, total and allocated network -capacity. - -.. http:get:: /capacity/network/query - :noindex: - - **Example request**: - - .. sourcecode:: http - - GET /capacity/network/query HTTP/1.1 - Accept: application/json - - { - "networkResourceTypeId": "publicIps", - "timePeriod": { - "startTime": "2015-09-28T00:00:00Z", - "stopTime": "2015-09-28T00:05:30Z" - } - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 200 OK - Content-Type: application/json - - { - "lastUpdate": "2015-09-28T00:02:10Z", - "capacityInformation": { - "available": 4, - "reserved": 10, - "total": 64, - "allocated": 50 - } - } - -Notify Network Capacity Change Event -"""""""""""""""""""""""""""""""""""" - -Notification about network capacity changes - -.. http:post:: /capacity/network/notification - :noindex: - - **Example notification**: - - .. sourcecode:: http - - Content-Type: application/json - - { - "notificationId": "yxwvut-srqpon-876543210", - "capacityChangeTime": "2015-09-28T00:02:10Z", - "resourceDescriptor": { - "networkResourceTypeId": "publicIps" - }, - "capacityInformation": { - "available": 4, - "reserved": 10, - "total": 64, - "allocated": 50 - } - } - -Network Resource Reservation -^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -Create Network Resource Reservation -""""""""""""""""""""""""""""""""""" - -Request the reservation of network resource capacity and/or virtual networks, -network ports - -.. http:post:: /reservation/network/create - :noindex: - - **Example request**: - - .. sourcecode:: http - - POST /reservation/network/create HTTP/1.1 - Accept: application/json - - { - "startTime": "2015-09-28T01:00:00Z", - "networkReservation": { - "numPublicIps": 2 - } - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 201 CREATED - Content-Type: application/json - - { - "reservationData": { - "startTime": "2015-09-28T01:00:00Z", - "reservationStatus": "initialized", - "reservationId": "wwww-xxxx-yyyy", - "publicIps": [ - "10.2.91.60", - "10.2.91.61" - ] - } - } - -Query Network Resource Reservation -"""""""""""""""""""""""""""""""""" - -Request to find out about reserved network resources that the consumer has -access to. - -.. http:get:: /reservation/network/query - :noindex: - - **Example request**: - - .. sourcecode:: http - - GET /reservation/network/query HTTP/1.1 - Accept: application/json - - { - "queryReservationFilter": [ - { - "reservationId": "wwww-xxxx-yyyy" - } - ] - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 200 OK - Content-Type: application/json - - { - "queryResult": { - "startTime": "2015-09-28T01:00:00Z", - "reservationStatus": "active", - "reservationId": "wwww-xxxx-yyyy", - "publicIps": [ - "10.2.91.60", - "10.2.91.61" - ] - } - } - -Update Network Resource Reservation -""""""""""""""""""""""""""""""""""" - -Request to update network resource reservation - -.. http:post:: /reservation/network/update - :noindex: - - **Example request**: - - .. sourcecode:: http - - POST /reservation/network/update HTTP/1.1 - Accept: application/json - - { - "startTime": "2015-09-21T16:00:00Z", - "reservationId": "wwww-xxxx-yyyy" - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 201 CREATED - Content-Type: application/json - - { - "reservationData": { - "startTime": "2015-09-21T16:00:00Z", - "reservationStatus": "active", - "reservationId": "wwww-xxxx-yyyy", - "publicIps": [ - "10.2.91.60", - "10.2.91.61" - ] - } - } - -Terminate Network Resource Reservation -"""""""""""""""""""""""""""""""""""""" - -Request to terminate a network resource reservation - -.. http:delete:: /reservation/network/(reservation_id) - :noindex: - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 200 - Content-Type: application/json - - { - "reservationId": "xxxx-yyyy-zzzz", - } - -Virtualised Storage Resources ------------------------------ - -Storage Capacity Management -^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -Subscribe Storage Capacity Change Event -""""""""""""""""""""""""""""""""""""""" - -Subscription from Consumer to VIM to be notified about storage capacity changes - -.. http:post:: /capacity/storage/subscribe - :noindex: - - **Example request**: - - .. sourcecode:: http - - POST /capacity/storage/subscribe HTTP/1.1 - Accept: application/json - - { - "storageResourceTypeId": "volumes", - "threshold": { - "thresholdType": "absoluteValue", - "threshold": { - "capacity_info": "available", - "condition": "lt", - "value": 3 - } - } - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 201 CREATED - Content-Type: application/json - - { - "created": "2015-09-28T12:00:00Z", - "capacityChangeSubscriptionId": "cdefgh-ijklmn-345678901" - } - -Query Storage Capacity for a defined resource type -"""""""""""""""""""""""""""""""""""""""""""""""""" - -Request to find out about available, reserved, total and allocated storage -capacity. - -.. http:get:: /capacity/storage/query - :noindex: - - **Example request**: - - .. sourcecode:: http - - GET /capacity/storage/query HTTP/1.1 - Accept: application/json - - { - "storageResourceTypeId": "volumes", - "timePeriod": { - "startTime": "2015-09-28T12:00:00Z", - "stopTime": "2015-09-28T12:04:45Z" - } - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 200 OK - Content-Type: application/json - - { - "lastUpdate": "2015-09-28T12:01:35Z", - "capacityInformation": { - "available": 2, - "reserved": 4, - "total": 10, - "allocated": 4 - } - } - -Query Storage Capacity with required attributes -""""""""""""""""""""""""""""""""""""""""""""""" - -Request to find out available capacity. - -.. http:get:: /capacity/storage/query - :noindex: - - **Example request**: - - .. sourcecode:: http - - GET /capacity/storage/query HTTP/1.1 - Accept: application/json - - { - "resourceCriteria": { - "typeOfStorage" : "volume", - "sizeOfStorage" : 200, - "rdmaSupported" : "True", - }, - "attributeSelector": "available", - "timePeriod": { - "startTime": "2015-09-28T12:00:00Z", - "stopTime": "2015-09-28T12:04:45Z" - } - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 200 OK - Content-Type: application/json - - { - "lastUpdate": "2015-09-28T12:01:35Z", - "capacityInformation": { - "available": 2 - } - } - -Notify Storage Capacity Change Event -"""""""""""""""""""""""""""""""""""" - -Notification about storage capacity changes - -.. http:post:: /capacity/storage/notification - :noindex: - - **Example notification**: - - .. sourcecode:: http - - Content-Type: application/json - - { - "notificationId": "xwvuts-rqponm-765432109", - "capacityChangeTime": "2015-09-28T12:01:35Z", - "resourceDescriptor": { - "storageResourceTypeId": "volumes" - }, - "capacityInformation": { - "available": 2, - "reserved": 4, - "total": 10, - "allocated": 4 - } - } - -Storage Resource Reservation -^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -Create Storage Resource Reservation -""""""""""""""""""""""""""""""""""" - -Request the reservation of storage resource capacity - -.. http:post:: /reservation/storage/create - :noindex: - - **Example request**: - - .. sourcecode:: http - - POST /reservation/storage/create HTTP/1.1 - Accept: application/json - - { - "startTime": "2015-09-28T13:00:00Z", - "storagePoolReservation": { - "storageSize": 10, - "numSnapshots": 3, - "numVolumes": 2 - } - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 201 CREATED - Content-Type: application/json - - { - "reservationData": { - "startTime": "2015-09-28T13:00:00Z", - "reservationStatus": "initialized", - "reservationId": "vvvv-wwww-xxxx", - "storagePoolReserved": { - "storageSize": 10, - "numSnapshots": 3, - "numVolumes": 2 - } - } - } - -Query Storage Resource Reservation -"""""""""""""""""""""""""""""""""" - -Request to find out about reserved storage resources that the consumer has -access to. - -.. http:get:: /reservation/storage/query - :noindex: - - **Example request**: - - .. sourcecode:: http - - GET /reservation/storage/query HTTP/1.1 - Accept: application/json - - { - "queryReservationFilter": [ - { - "reservationId": "vvvv-wwww-xxxx" - } - ] - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 200 OK - Content-Type: application/json - - { - "queryResult": { - "startTime": "2015-09-28T13:00:00Z", - "reservationStatus": "active", - "reservationId": "vvvv-wwww-xxxx", - "storagePoolReserved": { - "storageSize": 10, - "numSnapshots": 3, - "numVolumes": 2 - } - } - } - -Update Storage Resource Reservation -""""""""""""""""""""""""""""""""""" - -Request to update storage resource reservation - -.. http:post:: /reservation/storage/update - :noindex: - - **Example request**: - - .. sourcecode:: http - - POST /reservation/storage/update HTTP/1.1 - Accept: application/json - - - { - "startTime": "2015-09-20T23:00:00Z", - "reservationId": "vvvv-wwww-xxxx" - - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 201 CREATED - Content-Type: application/json - - { - "reservationData": { - "startTime": "2015-09-20T23:00:00Z", - "reservationStatus": "active", - "reservationId": "vvvv-wwww-xxxx", - "storagePoolReserved": { - "storageSize": 10, - "numSnapshots": 3, - "numVolumes": 2 - } - } - } - -Terminate Storage Resource Reservation -"""""""""""""""""""""""""""""""""""""" - -Request to terminate a storage resource reservation - -.. http:delete:: /reservation/storage/(reservation_id) - :noindex: - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 200 - Content-Type: application/json - - { - "reservationId": "xxxx-yyyy-zzzz", - } diff --git a/docs/requirements/annex1.rst b/docs/requirements/annex1.rst deleted file mode 100644 index 65a5f22..0000000 --- a/docs/requirements/annex1.rst +++ /dev/null @@ -1,37 +0,0 @@ -.. This work is licensed under a Creative Commons Attribution 4.0 International License. -.. http://creativecommons.org/licenses/by/4.0 - -.. _uc-brahmaputra: - -ANNEX A: Use case for OPNFV Brahmaputra -======================================= - -A basic resource reservation use case to be realized for OPNFV B-release may -look as follows: - -* Step 0: Shim-layer is monitoring/querying available capacity at NFVI - - * Step 0a: Cloud operator creates a new OpenStack tenant user and updates - quota values for this user - - * Step 0b: The tenant user is creating and instantiating a simple VNF - (e.g. 1 network, 2 VMs) - - * Step 0c: OpenStack is notifying shim-layer about capacity change for - this new tenant user - - * Step 0d: Cloud operator can visualize the changes using the GUI - -* Step 1: Consumer(NFVO) is sending a reservation request for future use to - shim-layer - -* Step 2: Shim-layer is checking for available capacity at the given time - window - -* Step 3: Shim-layer is responding with reservation identifier - -* Step 4 (optional): Consumer(NFVO) is sending an update reservation request - to shim-layer (startTime set to now) -> continue with Steps 2 and 3. - -* Step 5: Consumer(VNFM) is requesting the allocation of virtualised resources - using the reservation identifier in Step 3 diff --git a/docs/requirements/architecture.rst b/docs/requirements/architecture.rst deleted file mode 100644 index 3eb20d3..0000000 --- a/docs/requirements/architecture.rst +++ /dev/null @@ -1,258 +0,0 @@ -.. This work is licensed under a Creative Commons Attribution 4.0 International License. -.. http://creativecommons.org/licenses/by/4.0 - -============================================ -High level architecture and general features -============================================ - -Architecture Overview -===================== - -.. figure:: images/figure1.png - :name: figure1 - :width: 90% - - Resource Reservation Architecture - -:numref:`figure1` shows the high level architecture for the resource reservation -use cases. Reserved resources are guaranteed for a given user/client for the -period expressed by start and end time. User/client represents the requestor -and the consequent consumer of the reserved resources and correspond to the -NFVO or VNFM in ETSI NFV terminology. - -Note: in this document only reservation requests from NFVO are considered. - -General Features -================ - -This section provides a list of features that need to be developed in the -Promise project. - -* Resource capacity management - - * Discovery of available resource capacity in resource providers - * Monitoring of available resource capacity in resource providers - * Update available resource capacity as a result of new or expired - reservations, addition/removal of resources. Note: this is a VIM internal - function, not an operation in the VIM northbound interface. - -* Resource reservation - - * Set start time and end time for allocation - * Increase/decrease reserved resource's capacity - * Update resource reservations, e.g. add/remove reserved resources - * Terminate an allocated resource due to the end time of a reservation - -* VIM northbound interfaces - - * Receive/Reply resource reservation requests - * Receive/Reply resource capacity management requests - * Receive/Reply resource allocation requests for reserved resources when - start time arrives - * Subscribe/Notify resource reservation event - - * Notify reservation error or process completion prior to reservation - start - * Notify remaining time until termination of a resource due to the end - time of a reservation - * Notify termination of a resource due to the end time of a reservation - - * Receive/Reply queries on available resource capacity - * Subscribe/Notify changes in available resource capacity - -High level northbound interface specification -============================================= - -Resource Capacity Management ----------------------------- - -.. figure:: images/figure2.png - :name: figure2 - :width: 90% - - Resource capacity management message flow: notification of capacity change - -:numref:`figure2` shows a high level flow for a use case of resource capacity -management. In this example, the VIM notifies the NFVO of capacity change after -having received an event regarding a change in capacity (e.g. a fault -notification) from the NFVI. The NFVO can also retrieve detailed capacity -information using the Query Capacity Request interface operation. - -.. figure:: images/figure3.png - :name: figure3 - :width: 90% - - Resource capacity management message flow: query of capacity density - -:numref:`figure3` shows a high level flow for another use case of resource -capacity management. In this example, the NFVO queries the VIM about the actual -capacity to instantiate a certain resource according to a certain template, for -example a VM according to a certain flavor. In this case the VIM responds with -the number of VMs that could be instantiated according to that flavor with the -currently available capacity. - -Resource Reservation --------------------- - -.. figure:: images/figure4.png - :name: figure4 - :width: 90% - - Resource reservation flow - -:numref:`figure4` shows a high level flow for a use case of resource -reservation. The main steps are: - -* The NFVO sends a resource reservation request to the VIM using the Create - Resource Reservation Request interface operation. -* The NFVO gets a reservation identifier reservation associated with this - request in the reply message -* Using the reservation identifier reservation, the NFVO can - query/update/terminate a resource reservation using the corresponding - interface operations -* The NFVO is notified that the resource reservation is terminated due to the - end time of the reservation - - -Information elements -==================== - -Resource Capacity Management ----------------------------- - -Notify Capacity Change Event -^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -The notification change message shall include the following information elements: - -============================ ========== ===================================== -Name Type Description -============================ ========== ===================================== -Notification Identifier Identifier issued by the VIM for the - capacity change event notification -Zone Identifier Identifier of the zone where capacity - has changed -Used/Reserved/Total Capacity List Used, reserved and total capacity - information regarding the resource - items subscribed for notification for - which capacity change event occurred -============================ ========== ===================================== - -Query Resource Capacity Request -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -The capacity management query request message shall include the following -information elements: - -========== ========== ====================================================== -Name Type Description -========== ========== ====================================================== -Zone Identifier Identifier of the zone where capacity is requested -Attributes List Attributes of resource items to be notified regarding - capacity change events -Resources List Identifiers of existing resource items to be queried - regarding capacity info (such as images, flavors, - virtual containers, networks, physical machines, etc.) -========== ========== ====================================================== - -The capacity management query request message may also include the following -information element: - -====== ========== ========================================================== -Name Type Description -====== ========== ========================================================== -Flavor Identifier Identifier that is passed in the request to obtain - information of the number of virtual resources that can be - instantiated according to this flavor with the available - capacity -====== ========== ========================================================== - -Query Resource Capacity Reply -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -The capacity management query reply message shall include the following -information elements: - -============================ ========== ===================================== -Name Type Description -============================ ========== ===================================== -Zone Identifier Identifier of the zone where capacity - is requested -Used/Reserved/Total Capacity List Used, reserved and total capacity - information regarding each of the - resource items requested to check for - capacity -============================ ========== ===================================== - -The detailed specification of the northbound interface for Capacity Management -in provided in section 5.1.1. - -Resource Reservation --------------------- - -Create Resource Reservation Request -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -The create resource reservation request message shall include the following -information elements: - -========== ========== ========================================================= -Name Type Description -========== ========== ========================================================= -Start Timestamp Start time for consumption of the reserved resources -End Timestamp End time for consumption of the reserved resources -Expiry Timestamp If not all reserved resources are allocated between start - time and expiry, the VIM shall release the corresponding - resources [#expiry]_ -Amount Number Amount of the resources per resource item type (i.e. - compute/network/storage) that need to be reserved -Zone Identifier The zone where the resources need(s) to be reserved -Attributes List Attributes of the resources to be reserved such as DPDK - support, hypervisor, network link bandwidth, affinity - rules, etc. -Resources List Identifiers of existing resource items to be reserved - (such as images, flavors, virtual containers, networks, - physical machines, etc.) -========== ========== ========================================================= - -.. [#expiry] Expiry is a period around start time within which, the allocation - process must take place. If allocation process does not start - within the expiry period, the reservation becomes invalid and VIM - should release the resources - -Create Resource Reservation Reply -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -The create resource reservation reply message shall include the following -information elements: - -=========== ========== ======================================================= -Name Type Description -=========== ========== ======================================================= -Reservation Identifier Identification of the reservation instance. It can be - used by a consumer to modify the reservation later, and - to request the allocation of the reserved resources. -Message Text Output message that provides additional information - about the create resource reservation request (e.g. may - be a simple ACK if the request is being background - processed by the VIM) -=========== ========== ======================================================= - -Notify Reservation Event -^^^^^^^^^^^^^^^^^^^^^^^^ - -The notification reservation event message shall include the following -information elements: - -============ ========== ===================================================== -Name Type Description -============ ========== ===================================================== -Reservation Identifier Identification of the reservation instance triggering - the event -Notification Identifier Identification of the resource event notification - issued by the VIM -Message Text Message describing the event -============ ========== ===================================================== - -The detailed specification of the northbound interface for Resource Reservation -is provided in section 5.1.2. diff --git a/docs/requirements/gap_analysis.rst b/docs/requirements/gap_analysis.rst deleted file mode 100644 index 9e4ec5c..0000000 --- a/docs/requirements/gap_analysis.rst +++ /dev/null @@ -1,99 +0,0 @@ -.. This work is licensed under a Creative Commons Attribution 4.0 International License. -.. http://creativecommons.org/licenses/by/4.0 - -================================= -Gap analysis in upstream projects -================================= - -This section provides a list of gaps in upstream projects for realizing -resource reservation and management. The gap analysis work focuses on the -current OpenStack Blazar project [BLAZAR]_ in this first release. - -OpenStack -========= - -Resource reservation for future use ------------------------------------ - -* Category: Blazar -* Type: 'missing' (lack of functionality) -* Description: - - * To-be: To reserve a whole set of compute/storage/network resources in the - future - * As-is: Blazar currently can do only compute resource reservation by using - "Shelved VM" - -* Related blueprints: - - * https://blueprints.launchpad.net/blazar/+spec/basic-volume-plugin - * https://blueprints.launchpad.net/blazar/+spec/basic-network-plugin - * It was planned in Blazar to implement volume and network/fixed ip - reservations - -Resource reservation update ---------------------------- - -* Category: Blazar -* Type: 'missing' (lack of functionality) -* Description: - - * To-be: Have the possibility of adding/removing resources to an existing - reservation, e..g in case of NFVI failure - * As-is: Currently in Blazar, a reservation can only be modified in terms of - start/end time - -* Related blueprints: N/A - -Give me an offer ----------------- - -* Category: Blazar -* Type: 'missing' (lack of functionality) -* Description: - - * To-be: To have the possibility of giving a quotation to a requesting user - and an expiration time. Reserved resources shall be released if they are - not claimed before this expiration time. - * As-is: Blazar can already send notification e.g. to inform a given user - that a reservation is about to expire - -* Related blueprints: N/A - -StormStack StormForge ---------------------- - -Stormify -^^^^^^^^ -* Stormify enables rapid web applications construction -* Based on Ember.js style Data stores -* Developed on Node.js using coffeescript/javascript -* Auto RESTful API generation based on Data Models -* Development starts with defining Data Models -* Code hosted at github : http://github.com/stormstack/stormify - -StormForge -^^^^^^^^^^ -* Data Model driven management of Resource Providers -* Based on Stormify Framework and implemented as per the OPNFV Promise - requirements -* Data Models are auto generated and RESTful API code from YANG schema -* Currently planned key services include Resource Capacity Management Service - and Resource Reservation Service -* List of YANG schemas for Promise project is attached in the Appendix -* Code hosted at github: http://github.com/stormstack/stormforge - -Resource Discovery -^^^^^^^^^^^^^^^^^^ -* Category: StormForge -* Type: 'planning' (lack of functionality) -* Description - - * To-be: To be able to discover resources in real time from OpenStack - components. Planning to add OpenStack Project to interface with Promise for - real time updates on capacity or any failures - * As-is: Currently, resource capacity is learnt using NB APIs related to - quota - -* Related Blueprints: N/A - diff --git a/docs/requirements/glossary.rst b/docs/requirements/glossary.rst deleted file mode 100644 index 48fd75b..0000000 --- a/docs/requirements/glossary.rst +++ /dev/null @@ -1,73 +0,0 @@ -.. This work is licensed under a Creative Commons Attribution 4.0 International License. -.. http://creativecommons.org/licenses/by/4.0 - -=================== -Definition of terms -=================== - -Different SDOs and communities use different terminology related to -NFV/Cloud/SDN. This list tries to define an OPNFV terminology, -mapping/translating the OPNFV terms to terminology used in other contexts. - -.. glossary:: - - Administrator - Administrator of the system, e.g. OAM in Telco context. - - Consumer - User-side Manager; consumer of the interfaces produced by the VIM; VNFM, - NFVO, or Orchestrator in ETSI NFV [NFV003]_ terminology. - - NFV - Network Function Virtualization - - NFVI - Network Function Virtualization Infrastructure; totality of all hardware - and software components which build up the environment in which VNFs are - deployed. - - NFVO - Network Functions Virtualization Orchestrator; functional block that - manages the Network Service (NS) lifecycle and coordinates the management - of NS lifecycle, VNF lifecycle (supported by the VNFM) and NFVI resources - (supported by the VIM) to ensure an optimized allocation of the necessary - resources and connectivity. - - Physical resource - Actual resources in NFVI; not visible to Consumer. - - Resource zone - A set of NFVI hardware and software resources logically grouped - according to physical isolation and redundancy capabilities or to - certain administrative policies for the NFVI [NFVIFA010]_ - - VIM - Virtualized Infrastructure Manager; functional block that is responsible - for controlling and managing the NFVI compute, storage and network - resources, usually within one operator's Infrastructure Domain, e.g. NFVI - Point of Presence (NFVI-PoP). - - Virtual Machine (VM) - Virtualized computation environment that behaves very much like a physical - computer/server. - - Virtual network - Virtual network routes information among the network interfaces of VM - instances and physical network interfaces, providing the necessary - connectivity. - - Virtual resource - A Virtual Machine (VM), a virtual network, or virtualized storage; Offered - resources to "Consumer" as result of infrastructure virtualization; - visible to Consumer. - - Virtual Storage - Virtualized non-volatile storage allocated to a VM. - - VNF - Virtualized Network Function. Implementation of an Network Function that - can be deployed on a Network Function Virtualization Infrastructure (NFVI). - - VNFM - Virtualized Network Function Manager; functional block that is responsible - for the lifecycle management of VNF. diff --git a/docs/requirements/images/LICENSE b/docs/requirements/images/LICENSE deleted file mode 100644 index 3b8719c..0000000 --- a/docs/requirements/images/LICENSE +++ /dev/null @@ -1,14 +0,0 @@ -Copyright 2015 Open Platform for NFV Project, Inc. and its contributors - -Open Platform for NFV Project Documentation Licence -=================================================== -Any documentation developed by the "Open Platform for NFV Project" -is licensed under a Creative Commons Attribution 4.0 International License. -You should have received a copy of the license along with this. If not, -see <http://creativecommons.org/licenses/by/4.0/>. - -Unless required by applicable law or agreed to in writing, documentation -distributed under the License is distributed on an "AS IS" BASIS, -WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -See the License for the specific language governing permissions and -limitations under the License. diff --git a/docs/requirements/images/computeflavor.png b/docs/requirements/images/computeflavor.png Binary files differdeleted file mode 100755 index 3ea3dba..0000000 --- a/docs/requirements/images/computeflavor.png +++ /dev/null diff --git a/docs/requirements/images/figure1.png b/docs/requirements/images/figure1.png Binary files differdeleted file mode 100644 index 065a995..0000000 --- a/docs/requirements/images/figure1.png +++ /dev/null diff --git a/docs/requirements/images/figure2.png b/docs/requirements/images/figure2.png Binary files differdeleted file mode 100755 index dd002a2..0000000 --- a/docs/requirements/images/figure2.png +++ /dev/null diff --git a/docs/requirements/images/figure3.png b/docs/requirements/images/figure3.png Binary files differdeleted file mode 100755 index 20e51c7..0000000 --- a/docs/requirements/images/figure3.png +++ /dev/null diff --git a/docs/requirements/images/figure4.png b/docs/requirements/images/figure4.png Binary files differdeleted file mode 100755 index e0c96a1..0000000 --- a/docs/requirements/images/figure4.png +++ /dev/null diff --git a/docs/requirements/images/figure5.png b/docs/requirements/images/figure5.png Binary files differdeleted file mode 100755 index 4e161f4..0000000 --- a/docs/requirements/images/figure5.png +++ /dev/null diff --git a/docs/requirements/images/figure5_new.png b/docs/requirements/images/figure5_new.png Binary files differdeleted file mode 100644 index 9307aa2..0000000 --- a/docs/requirements/images/figure5_new.png +++ /dev/null diff --git a/docs/requirements/images/figure6.png b/docs/requirements/images/figure6.png Binary files differdeleted file mode 100755 index 8aeec23..0000000 --- a/docs/requirements/images/figure6.png +++ /dev/null diff --git a/docs/requirements/images/figure6_new.png b/docs/requirements/images/figure6_new.png Binary files differdeleted file mode 100644 index 5ec4b43..0000000 --- a/docs/requirements/images/figure6_new.png +++ /dev/null diff --git a/docs/requirements/images/figure7_new.png b/docs/requirements/images/figure7_new.png Binary files differdeleted file mode 100644 index 6684949..0000000 --- a/docs/requirements/images/figure7_new.png +++ /dev/null diff --git a/docs/requirements/impl_architecture.rst b/docs/requirements/impl_architecture.rst deleted file mode 100644 index d7375d5..0000000 --- a/docs/requirements/impl_architecture.rst +++ /dev/null @@ -1,313 +0,0 @@ -.. This work is licensed under a Creative Commons Attribution 4.0 International License. -.. http://creativecommons.org/licenses/by/4.0 - -Detailed architecture and message flows -======================================= - -Within the Promise project we consider two different architectural options, i.e. -a *shim-layer* based architecture and an architecture targeting at full -OpenStack *integration*. - -Shim-layer architecture ------------------------ - -The *shim-layer architecture* is using a layer on top of OpenStack to provide -the capacity management, resource reservation, and resource allocation features. - - -Detailed Message Flows -^^^^^^^^^^^^^^^^^^^^^^ - -Note, that only selected parameters for the messages are shown. Refer to -:ref:`northbound_API` and Annex :ref:`yang_schema` for a full set of message -parameters. - -Resource Capacity Management -"""""""""""""""""""""""""""" - -.. figure:: images/figure5_new.png - :name: figure5 - :width: 90% - - Capacity Management Scenario - -:numref:`figure5` shows a detailed message flow between the consumers and the -capacity management functional blocks inside the shim-layer. It has the -following steps: - - * Step 1a: The Consumer sends a *query-capacity* request to Promise - using some filter like time-windows or resource type. The capacity is - looked up in the shim-layer capacity map. - - * Step 1b: The shim-layer will respond with information about the - total, available, reserved, and used (allocated) capacities matching the - filter. - - * Step 2a: The Consumer can send *increase/decrease-capacity* requests - to update the capacity available to the reservation system. It can be - 100% of available capacity in the given provider/source or only a subset, - i.e., it can allow for leaving some "buffer" in the actual NFVI to be - used outside the Promise shim-layer or for a different reservation - service instance. It can also be used to inform the reservation system - that from a certain time in the future, additional resources can be - reserved (e.g. due to a planned upgrade of the capacity), or the - available capacity will be reduced (e.g. due to a planned downtime of - some of the resources). - - * Step 2b: The shim-layer will respond with an ACK/NACK message. - - * Step 3a: Consumers can subscribe for capacity-change events using a - filter. - - * Step 3b: Each successful subscription is responded with a - subscription_id. - - * Step 4: The shim-layer monitors the capacity information for the - various types of resources by periodically querying the various - Controllers (e.g. Nova, Neutron, Cinder) or by creating event alarms in - the VIM (e.g. with Ceilometer for OpenStack) and updates capacity - information in its capacity map. - - * Step 5: Capacity changes are notified to the Consumer. - -Resource Reservation -"""""""""""""""""""" - -.. figure:: images/figure6_new.png - :name: figure6 - :width: 90% - - Resource Reservation for Future Use Scenario - -:numref:`figure6` shows a detailed message flow between the Consumer and the -resource reservation functional blocks inside the shim-layer. It has the -following steps: - - * Step 1a: The Consumer creates a resource reservation request for - future use by setting a start and end time for the reservation as well as - more detailed information about the resources to be reserved. The Promise - shim-layer will check the free capacity in the given time window and in - case sufficient capacity exists to meet the reservation request, will - mark those resources "reserved" in its reservation map. - - * Step 1b: If the reservation was successful, a reservation_id and - status of the reservation will be returned to the Consumer. In case the - reservation cannot be met, the shim-layer may return information about - the maximum capacity that could be reserved during the requested time - window and/or a potential time window where the requested (amount of) - resources would be available. - - * Step 2a: Reservations can be updated using an *update-reservation*, - providing the reservation_id and the new reservation_data. Promise - Reservation Manageer will check the feasibility to update the reservation - as requested. - - * Step 2b: If the reservation was updated successfully, a - reservation_id and status of the reservation will be returned to the - Consumer. Otherwise, an appropriate error message will be returned. - - * Step 3a: A *cancel-reservation* request can be used to withdraw an - existing reservation. Promise will update the reservation map by removing - the reservation as well as the capacity map by adding the freed capacity. - - * Step 3b: The response message confirms the cancelation. - - * Step 4a: Consumers can also issue *query-reservation* requests to - receive a list of reservation. An input filter can be used to narrow down - the query, e.g., only provide reservations in a given time window. - Promise will query its reservation map to identify reservations matching - the input filter. - - * Step 4b: The response message contains information about all - reservations matching the input filter. It also provides information - about the utilization in the requested time window. - - * Step 5a: Consumers can subscribe for reservation-change events using - a filter. - - * Step 5b: Each successful subscription is responded with a - subscription_id. - - * Step 6a: Promise synchronizes the available and used capacity with - the underlying VIM. - - * Step 6b: In certain cases, e.g., due a failure in the underlying - hardware, some reservations cannot be kept up anymore and have to be - updated or canceled. The shim-layer will identify affected reservations - among its reservation records. - - * Step 7: Subscribed Consumers will be informed about the updated - reservations. The notification contains the updated reservation_data and - new status of the reservation. It is then up to the Consumer to take - appropriate actions in order to ensure high priority reservations are - favored over lower priority reservations. - -Resource Allocation -""""""""""""""""""" - -.. figure:: images/figure7_new.png - :name: figure7 - :width: 90% - - Resource Allocation - -:numref:`figure7` shows a detailed message flow between the Consumer, the -functional blocks inside the shim-layer, and the VIM. It has the following -steps: - - * Step 1a: The Consumer sends a *create-instance* request providing - information about the resources to be reserved, i.e., provider_id - (optional in case of only one provider), name of the instance, the - requested flavour and image, etc. If the allocation is against an - existing reservation, the reservation_id has to be provided. - - * Step 1b: If a reservation_id was provided, Promise checks if a - reservation with that ID exists, the reservation start time has arrived - (i.e. the reservation is active), and the required capacity for the - requested flavor is within the available capacity of the reservation. If - those conditions are met, Promise creates a record for the allocation - (VMState="INITIALIZED") and update its databases. If no reservation_id - was provided in the allocation request, Promise checks whether the - required capacity to meet the request can be provided from the available, - non-reserved capacity. If yes, Promise creates a record for the - allocation and update its databases. In any other case, Promise rejects - the *create-instance* request. - - * Step 2: In the case the *create-instance* request was rejected, - Promise responds with a "status=rejected" providing the reason of the - rejection. This will help the Consumer to take appropriate actions, e.g., - send an updated *create-instance* request. The allocation work flow will - terminate at this step and the below steps are not executed. - - * Step 3a: If the *create-instance* request was accepted and a related - allocation record has been created, the shim-layer issues a - *createServer* request to the VIM Controller providing all information to - create the server instance. - - * Step 3b: The VIM Controller sends an immediate reply with an - instance_id and starts the VIM-internal allocation process. - - * Step 4: The Consumer gets an immediate response message with - allocation status "in progress" and the assigned instance_id. - - * Step 5a+b: The consumer subscribes to receive notifications about - allocation events related to the requested instance. Promise responds - with an acknowledgment including a subscribe_id. - - * Step 6: In parallel to the previous step, Promise shim-layer creates - an alarm in Aodh to receive notifications about all changes to the - VMState for instance_id. - - * Step 7a: The VIM Controller notifies all instance related events to - Ceilometer. After the allocation has been completed or failed, it sends - an event to Ceilometer. This triggers the OpenStack alarming service Aodh - to notify the new VMState (e.g. ACTIVE and ERROR) to the shim-layer that - updates its internal allocation records. - - * Step 7b: Promise sends a notification message to the subscribed - Consumer with information on the allocated resources including their new - VMState. - - * Step 8a+b: Allocated instances can be terminated by the Consumer by - sending a *destroy-instance* request to the shim-layer. Promise responds - with an acknowledgment and the new status "DELETING" for the instance. - - * Step 9a: Promise sends a *deleteServer* request for the instance_id - to the VIM Controller. - - * Step 10a: After the instance has been deleted, an event alarm is - sent to the shim-layer that updates its internal allocation records and - capacity utilization. - - * Step 10b: The shim-layer also notifies the subscribed Consumer about - the successfully destroyed instance. - - -Internal operations -^^^^^^^^^^^^^^^^^^^ - -.. note:: This section is to be updated - -In the following, the internal logic and operations of the shim-layer will be -explained in more detail, e.g. the "check request" (step 1b in -:numref:`figure7` of the allocation work flow). - - - -Integrated architecture ------------------------ - -The *integrated architecture* aims at full integration with OpenStack. -This means that it is planned to use the already existing OpenStack APIs -extended with the reservation capabilities. - -The advantage of this approach is that we don't need to re-model the -complex resource structure we have for the virtual machines and the -corresponding infrastructure. - -The atomic item is the virtual machine with the minimum set of resources -it requires to be able to start it up. It is important to state that -resource reservation is handled on VM instance level as opposed to standalone -resources like CPU, memory and so forth. As the placement is an important -aspect in order to be able to use the reserved resources it provides the -constraint to handle resources in groups. - -The placement constraint also makes it impossible to use a quota management -system to solve the base use case described earlier in this document. - -OpenStack had a project called Blazar, which was created in order to provide -resource reservation functionality in cloud environments. It uses the Shelve -API of Nova, which provides a sub-optimal solution. Due to the fact that this -feature blocks the reserved resources this solution cannot be considered to -be final. Further work is needed to reach a more optimal stage, where the -Nova scheduler is intended to be used to schedule the resources for future -use to make the reservations. - -Phases of the work -^^^^^^^^^^^^^^^^^^ - -The work has two main stages to reach the final solution. The following main work items -are on the roadmap for this approach: - -#. Sub-optimal solution by using the shelve API of Nova through the Blazar project: - - * Fix the code base of the Blazar project: - - Due to integration difficulties the Blazar project got suspended. Since the last - activities in that repository the OpenStack code base and environment changed - significantly, which means that the project's code base needs to be updated to the - latest standards and has to be able to interact with the latest version of the - other OpenStack services. - - * Update the Blazar API: - - The REST API needs to be extended to contain the attributes for the reservation - defined in this document. This activity shall include testing towards the new API. - -#. Use Nova scheduler to avoid blocking the reserved resources: - - * Analyze the Nova scheduler: - - The status and the possible interface between the resource reservation system and - the Nova scheduler needs to be identified. It is crucial to achieve a much more - optimal solution than what the current version of Blazar can provide. The goal is - to be able to use the reserved resources before the reservation starts. In order to - be able to achieve this we need the scheduler to do scheduling for the future - considering the reservation intervals that are specified in the request. - - * Define a new design based on the analysis and start the work on it: - - The design for the more optimal solution can be defined only after analyzing the - structure and capabilities of the Nova scheduler. - - * This phase can be started in parallel with the previous one. - -Detailed Message Flows -^^^^^^^^^^^^^^^^^^^^^^ - -.. note:: to be done - -Resource Reservation -"""""""""""""""""""" - -.. note:: to be specified diff --git a/docs/requirements/index.rst b/docs/requirements/index.rst deleted file mode 100644 index 00edf0e..0000000 --- a/docs/requirements/index.rst +++ /dev/null @@ -1,52 +0,0 @@ -.. This work is licensed under a Creative Commons Attribution 4.0 International License. -.. http://creativecommons.org/licenses/by/4.0 - -**************************** -Promise: Resource Management -**************************** - -:Project: Promise, https://wiki.opnfv.org/promise -:Editors: Ashiq Khan (NTT DOCOMO), Bertrand Souville (NTT DOCOMO) -:Authors: Ravi Chunduru (ClearPath Networks), Peter Lee (ClearPath Networks), - Gerald Kunzmann (NTT DOCOMO), Ryota Mibu (NEC), - Carlos Goncalves (NEC), Arturo Martin De Nicolas (Ericsson) - -:History: - ========== ===================================================== - Date Description - ========== ===================================================== - 04.12.2014 Project creation - 20.04.2015 Initial version of the deliverable uploaded to gerrit - 19.06.2015 Stable version of the Promise deliverable - ========== ===================================================== - -:Abstract: Promise is an OPNFV requirement project. Its objective is to realize - ETSI NFV defined resource reservation and NFVI capacity features - within the scope of OPNFV. Promise provides the details of the - requirements on resource reservation, NFVI capacity management at - VIM, specification of the northbound interfaces from VIM relevant to - these features, and implementation plan to realize these features in - OPNFV. - -.. raw:: latex - - \newpage - -.. toctree:: - :maxdepth: 4 - :numbered: - - glossary.rst - intro.rst - usecase.rst - architecture.rst - gap_analysis.rst - impl_architecture.rst - NB_interface.rst - summary.rst - - references.rst - annex1.rst - schemas.rst - supported_apis.rst - revision.rst diff --git a/docs/requirements/intro.rst b/docs/requirements/intro.rst deleted file mode 100644 index 654fdf9..0000000 --- a/docs/requirements/intro.rst +++ /dev/null @@ -1,39 +0,0 @@ -.. This work is licensed under a Creative Commons Attribution 4.0 International License. -.. http://creativecommons.org/licenses/by/4.0 - -============ -Introduction -============ - -Resource reservation is a basic function for the operation of a virtualized -telecom network. In resource reservation, VIM reserves resources for a certain -period as requested by the NFVO. A resource reservation will have a start time -which could be into the future. Therefore, the reserved resources shall be -available for the NFVO requested purpose (e.g. for a VNF) at the start time for -the duration asked by NFVO. Resources include all three resource types in an -NFVI i.e. compute, storage and network. - -Besides, NFVO requires abstracted NFVI resource capacity information in order -to take decisions on VNF placement and other operations related to the virtual -resources. VIM is required to inform the NFVO of NFVI resource state -information for this purpose. Promise project aims at delivering the detailed -requirements on these two features defined in ETSI NFV MAN GS [NFVMAN]_, -the list of gaps in upstream projects, potential implementation architecture -and plan, and the VIM northbound interface specification for resource -reservation and capacity management. - -Problem description -=================== - -OpenStack, a prominent candidate for the VIM, cannot reserve resources for -future use. OpenStack requires immediate instantiation of Virtual Machines -(VMs) in order to occupy resources intended to be reserved. Blazar can reserve -compute resources for future by keeping the VMs in shelved mode. However, such -reserved resources can also be used for scaling out rather than new VM -instantiation. Blazar does not support network and storage resource reservation -yet. - -Besides, OpenStack does not provide a northbound interface through which it can -notify an upper layer management entity e.g. NFVO about capacity changes in its -NFVI, periodically or in an event driven way. Capacity management is a feature -defined in ETSI NFV MAN GS [NFVMAN]_ and is required in network operation. diff --git a/docs/requirements/references.rst b/docs/requirements/references.rst deleted file mode 100644 index c498b66..0000000 --- a/docs/requirements/references.rst +++ /dev/null @@ -1,25 +0,0 @@ -.. This work is licensed under a Creative Commons Attribution 4.0 International License. -.. http://creativecommons.org/licenses/by/4.0 - -References and bibliography -=========================== - -.. [PROMISE] OPNFV, "Promise" requirements project, [Online]. Available at - https://wiki.opnfv.org/promise -.. [BLAZAR] OpenStack Blazar Project, [Online]. Available at - https://wiki.openstack.org/wiki/Blazar -.. [PROMOSS] Promise reference implementation, [Online]. Available at - https://github.com/opnfv/promise -.. [YANGFO] Yangforge Project, [Online]. Available at - https://github.com/opnfv/yangforge -.. [NFVMAN] ETSI GS NFV MAN 001, "Network Function Virtualisation (NFV); Management and Orchestration" -.. [NFV003] ETSI GS NFV 003, "Network Function Virtualisation (NFV); Terminology for Main Concepts in NFV" -.. [NFVIFA010] ETSI GS NFV IFA 010, "Network Function Virtualisation (NFV); Management and Orchestration; - Functional Requirements Specification" -.. [NFVIFA005] ETSI GS NFV IFA 005, "Network Function Virtualisation (NFV); Management and Orchestration; - Or-Vi reference point - Interface and Information Model Specification" -.. [NFVIFA006] ETSI GS NFV IFA 006 "Network Function Virtualisation (NFV); Management and Orchestration; - Vi-Vnfm reference point - Interface and Information Model Specification" -.. [ETSINFV] ETSI NFV, [Online]. Available at - http://www.etsi.org/technologies-clusters/technologies/nfv - diff --git a/docs/requirements/revision.rst b/docs/requirements/revision.rst deleted file mode 100644 index cd0b76b..0000000 --- a/docs/requirements/revision.rst +++ /dev/null @@ -1,43 +0,0 @@ -.. This work is licensed under a Creative Commons Attribution 4.0 International License. -.. http://creativecommons.org/licenses/by/4.0 - -ANNEX D: Document revision -========================== - -+---------+-----------------------------------------+ -| Version | Description | -+---------+-----------------------------------------+ -| 1.0.1 | JIRA: PROMISE-23 | -| | - Reference to YangForge Framework | -| | - Corrections to figure 3.1 | -+---------+-----------------------------------------+ -| 1.0.2 | JIRA: PROMISE-11 | -| | - OPNFV Logo Added | -| | - Alignment to ETSI NFV Specs | -+---------+-----------------------------------------+ -| 1.0.3 | JIRA: PROMISE-54 | -| | - Use case for Brahmaputra | -+---------+-----------------------------------------+ -| 1.0.4 | JIRA: PROMISE-60 | -| | - Editorial fixes | -| | | -| | JIRA: PROMISE-57 | -| | - Split shim-layer architecture and | -| | integrated architecture sections | -+---------+-----------------------------------------+ -| 1.0.5 | JIRA: PROMISE-61 | -| | - Updated Promise Yang Schema | -+---------+-----------------------------------------+ -| 1.0.6 | JIRA: PROMISE-62 | -| | - Supported APIs for Brahmaputra | -+---------+-----------------------------------------+ -| 1.0.7 | JIRA: PROMISE-63 | -| | - Update message flow for shim-layer | -| | JIRA: PROMISE-58 | -| | - Integrated approach description | -| | JIRA: PROMISE-64 | -| | - Promise userguide | -+---------+-----------------------------------------+ -| 1.0.8 | JIRA: PROMISE-11 | -| | - Alignment to ETSI NVF Specs | -+---------+-----------------------------------------+ diff --git a/docs/requirements/schemas.rst b/docs/requirements/schemas.rst deleted file mode 100644 index c98b7da..0000000 --- a/docs/requirements/schemas.rst +++ /dev/null @@ -1,658 +0,0 @@ -.. This work is licensed under a Creative Commons Attribution 4.0 International License. -.. http://creativecommons.org/licenses/by/4.0 - -.. _yang_schema: - -ANNEX B: Promise YANG schema based on YangForge -=============================================== - -.. code:: - - module opnfv-promise { - namespace "urn:opnfv:promise"; - prefix promise; - - import complex-types { prefix ct; } - import ietf-yang-types { prefix yang; } - import ietf-inet-types { prefix inet; } - import access-control-models { prefix acm; } - import nfv-infrastructure { prefix nfvi; } - import nfv-mano { prefix mano; } - - description - "OPNFV Promise Resource Reservation/Allocation controller module"; - - revision 2015-10-05 { - description "Complete coverage of reservation related intents"; - } - - revision 2015-08-06 { - description "Updated to incorporate YangForge framework"; - } - - revision 2015-04-16 { - description "Initial revision."; - } - - feature reservation-service { - description "When enabled, provides resource reservation service"; - } - - feature multi-provider { - description "When enabled, provides resource management across multiple providers"; - } - - typedef reference-identifier { - description "defines valid formats for external reference id"; - type union { - type yang:uuid; - type inet:uri; - type uint32; - } - } - - grouping resource-utilization { - container capacity { - container total { description 'Conceptual container that should be extended'; } - container reserved { description 'Conceptual container that should be extended'; - config false; } - container usage { description 'Conceptual container that should be extended'; - config false; } - container available { description 'Conceptual container that should be extended'; - config false; } - } - } - - grouping temporal-resource-collection { - description - "Information model capturing resource-collection with start/end time window"; - - leaf start { type yang:date-and-time; } - leaf end { type yang:date-and-time; } - - uses nfvi:resource-collection; - } - - grouping resource-usage-request { - description - "Information model capturing available parameters to make a resource - usage request."; - reference "OPNFV-PROMISE, Section 3.4.1"; - - uses temporal-resource-collection { - refine elements { - description - "Reference to a list of 'pre-existing' resource elements that are - required for fulfillment of the resource-usage-request. - - It can contain any instance derived from ResourceElement, - such as ServerInstances or even other - ResourceReservations. If the resource-usage-request is - accepted, the ResourceElement(s) listed here will be placed - into 'protected' mode as to prevent accidental removal. - - If any of these resource elements become 'unavailable' due to - environmental or administrative activity, a notification will - be issued informing of the issue."; - } - } - - leaf zone { - description "Optional identifier to an Availability Zone"; - type instance-identifier { ct:instance-type nfvi:AvailabilityZone; } - } - } - - grouping query-start-end-window { - container window { - description "Matches entries that are within the specified start/end time window"; - leaf start { type yang:date-and-time; } - leaf end { type yang:date-and-time; } - leaf scope { - type enumeration { - enum "exclusive" { - description "Matches entries that start AND end within the window"; - } - enum "inclusive" { - description "Matches entries that start OR end within the window"; - } - } - default "inclusive"; - } - } - } - - grouping query-resource-collection { - uses query-start-end-window { - description "Match for ResourceCollection(s) that are within the specified - start/end time window"; - } - leaf-list without { - description "Excludes specified collection identifiers from the result"; - type instance-identifier { ct:instance-type ResourceCollection; } - } - leaf show-utilization { type boolean; default true; } - container elements { - leaf-list some { - description "Query for ResourceCollection(s) that contain some or more of - these element(s)"; - type instance-identifier { ct:instance-type nfvi:ResourceElement; } - } - leaf-list every { - description "Query for ResourceCollection(s) that contain all of - these element(s)"; - type instance-identifier { ct:instance-type nfvi:ResourceElement; } - } - } - } - - grouping common-intent-output { - leaf result { - type enumeration { - enum "ok"; - enum "conflict"; - enum "error"; - } - } - leaf message { type string; } - } - - grouping utilization-output { - list utilization { - key 'timestamp'; - leaf timestamp { type yang:date-and-time; } - leaf count { type int16; } - container capacity { uses nfvi:resource-capacity; } - } - } - - ct:complex-type ResourceCollection { - ct:extends nfvi:ResourceContainer; - ct:abstract true; - - description - "Describes an abstract ResourceCollection data model, which represents - a grouping of capacity and elements available during a given - window in time which must be extended by other resource - collection related models"; - - leaf start { type yang:date-and-time; } - leaf end { type yang:date-and-time; } - - leaf active { - config false; - description - "Provides current state of this record whether it is enabled and within - specified start/end time"; - type boolean; - } - } - - ct:complex-type ResourcePool { - ct:extends ResourceCollection; - - description - "Describes an instance of an active ResourcePool record, which - represents total available capacity and elements from a given - source."; - - leaf source { - type instance-identifier { - ct:instance-type nfvi:ResourceContainer; - require-instance true; - } - mandatory true; - } - - refine elements { - // following 'must' statement applies to each element - // NOTE: just a non-working example for now... - must "boolean(/source/elements/*[@id=id])" { - error-message "One or more of the ResourceElement(s) does not exist in - the provider to be reserved"; - } - } - } - - ct:complex-type ResourceReservation { - ct:extends ResourceCollection; - - description - "Describes an instance of an accepted resource reservation request, - created usually as a result of 'create-reservation' request. - - A ResourceReservation is a derived instance of a generic - ResourceCollection which has additional parameters to map the - pool(s) that were referenced to accept this reservation as well - as to track allocations made referencing this reservation. - - Contains the capacities of various resource attributes being - reserved along with any resource elements that are needed to be - available at the time of allocation(s)."; - - reference "OPNFV-PROMISE, Section 3.4.1"; - - leaf created-on { type yang:date-and-time; config false; } - leaf modified-on { type yang:date-and-time; config false; } - - leaf-list pools { - config false; - description - "Provides list of one or more pools that were referenced for providing - the requested resources for this reservation. This is an - important parameter for informing how/where allocation - requests can be issued using this reservation since it is - likely that the total reserved resource capacity/elements are - made availble from multiple sources."; - type instance-identifier { - ct:instance-type ResourcePool; - require-instance true; - } - } - - container remaining { - config false; - description - "Provides visibility into total remaining capacity for this - reservation based on allocations that took effect utilizing - this reservation ID as a reference."; - - uses nfvi:resource-capacity; - } - - leaf-list allocations { - config false; - description - "Reference to a collection of consumed allocations referencing - this reservation."; - type instance-identifier { - ct:instance-type ResourceAllocation; - require-instance true; - } - } - } - - ct:complex-type ResourceAllocation { - ct:extends ResourceCollection; - - description - "A ResourceAllocation record denotes consumption of resources from a - referenced ResourcePool. - - It does not reflect an accepted request but is created to - represent the actual state about the ResourcePool. It is - created once the allocation(s) have successfully taken effect - on the 'source' of the ResourcePool. - - The 'priority' state indicates the classification for dealing - with resource starvation scenarios. Lower priority allocations - will be forcefully terminated to allow for higher priority - allocations to be fulfilled. - - Allocations without reference to an existing reservation will - receive the lowest priority."; - - reference "OPNFV-PROMISE, Section 3.4.3"; - - leaf reservation { - description "Reference to an existing reservation identifier (optional)"; - - type instance-identifier { - ct:instance-type ResourceReservation; - require-instance true; - } - } - - leaf pool { - description "Reference to an existing resource pool from which allocation is drawn"; - - type instance-identifier { - ct:instance-type ResourcePool; - require-instance true; - } - } - - container instance-ref { - config false; - description - "Reference to actual instance identifier of the provider/server - for this allocation"; - leaf provider { - type instance-identifier { ct:instance-type ResourceProvider; } - } - leaf server { type yang:uuid; } - } - - leaf priority { - config false; - description - "Reflects current priority level of the allocation according to - classification rules"; - type enumeration { - enum "high" { value 1; } - enum "normal" { value 2; } - enum "low" { value 3; } - } - default "normal"; - } - } - - ct:complex-type ResourceProvider { - ct:extends nfvi:ResourceContainer; - - key "name"; - leaf token { type string; mandatory true; } - - container services { // read-only - config false; - container compute { - leaf endpoint { type inet:uri; } - ct:instance-list flavors { ct:instance-type nfvi:ComputeFlavor; } - } - } - - leaf-list pools { - config false; - description - "Provides list of one or more pools that are referencing this provider."; - - type instance-identifier { - ct:instance-type ResourcePool; - require-instance true; - } - } - } - - // MAIN CONTAINER - container promise { - - uses resource-utilization { - description "Describes current state info about capacity utilization info"; - - augment "capacity/total" { uses nfvi:resource-capacity; } - augment "capacity/reserved" { uses nfvi:resource-capacity; } - augment "capacity/usage" { uses nfvi:resource-capacity; } - augment "capacity/available" { uses nfvi:resource-capacity; } - } - - ct:instance-list providers { - if-feature multi-provider; - description "Aggregate collection of all registered ResourceProvider instances - for Promise resource management service"; - ct:instance-type ResourceProvider; - } - - ct:instance-list pools { - if-feature reservation-service; - description "Aggregate collection of all ResourcePool instances"; - ct:instance-type ResourcePool; - } - - ct:instance-list reservations { - if-feature reservation-service; - description "Aggregate collection of all ResourceReservation instances"; - ct:instance-type ResourceReservation; - } - - ct:instance-list allocations { - description "Aggregate collection of all ResourceAllocation instances"; - ct:instance-type ResourceAllocation; - } - - container policy { - container reservation { - leaf max-future-start-range { - description - "Enforce reservation request 'start' time is within allowed range from now"; - type uint16 { range 0..365; } - units "days"; - } - leaf max-future-end-range { - description - "Enforce reservation request 'end' time is within allowed range from now"; - type uint16 { range 0..365; } - units "days"; - } - leaf max-duration { - description - "Enforce reservation duration (end-start) does not exceed specified threshold"; - type uint16; - units "hours"; - default 8760; // for now cap it at max one year as default - } - leaf expiry { - description - "Duration in minutes from start when unallocated reserved resources - will be released back into the pool"; - type uint32; - units "minutes"; - } - } - } - } - - //------------------- - // INTENT INTERFACE - //------------------- - - // RESERVATION INTENTS - rpc create-reservation { - if-feature reservation-service; - description "Make a request to the reservation system to reserve resources"; - input { - uses resource-usage-request; - } - output { - uses common-intent-output; - leaf reservation-id { - type instance-identifier { ct:instance-type ResourceReservation; } - } - } - } - - rpc update-reservation { - description "Update reservation details for an existing reservation"; - input { - leaf reservation-id { - type instance-identifier { - ct:instance-type ResourceReservation; - require-instance true; - } - mandatory true; - } - uses resource-usage-request; - } - output { - uses common-intent-output; - } - } - - rpc cancel-reservation { - description "Cancel the reservation and be a good steward"; - input { - leaf reservation-id { - type instance-identifier { ct:instance-type ResourceReservation; } - mandatory true; - } - } - output { - uses common-intent-output; - } - } - - rpc query-reservation { - if-feature reservation-service; - description "Query the reservation system to return matching reservation(s)"; - input { - leaf zone { type instance-identifier { ct:instance-type nfvi:AvailabilityZone; } } - uses query-resource-collection; - } - output { - leaf-list reservations { type instance-identifier - { ct:instance-type ResourceReservation; } } - uses utilization-output; - } - } - - // CAPACITY INTENTS - rpc increase-capacity { - description "Increase total capacity for the reservation system - between a window in time"; - input { - uses temporal-resource-collection; - leaf source { - type instance-identifier { - ct:instance-type nfvi:ResourceContainer; - } - } - } - output { - uses common-intent-output; - leaf pool-id { - type instance-identifier { ct:instance-type ResourcePool; } - } - } - } - - rpc decrease-capacity { - description "Decrease total capacity for the reservation system - between a window in time"; - input { - uses temporal-resource-collection; - leaf source { - type instance-identifier { - ct:instance-type nfvi:ResourceContainer; - } - } - } - output { - uses common-intent-output; - leaf pool-id { - type instance-identifier { ct:instance-type ResourcePool; } - } - } - } - - rpc query-capacity { - description "Check available capacity information about a specified - resource collection"; - input { - leaf capacity { - type enumeration { - enum 'total'; - enum 'reserved'; - enum 'usage'; - enum 'available'; - } - default 'available'; - } - leaf zone { type instance-identifier { ct:instance-type nfvi:AvailabilityZone; } } - uses query-resource-collection; - // TBD: additional parameters for query-capacity - } - output { - leaf-list collections { type instance-identifier - { ct:instance-type ResourceCollection; } } - uses utilization-output; - } - } - - // ALLOCATION INTENTS (should go into VIM module in the future) - rpc create-instance { - description "Create an instance of specified resource(s) utilizing capacity - from the pool"; - input { - leaf provider-id { - if-feature multi-provider; - type instance-identifier { ct:instance-type ResourceProvider; - require-instance true; } - } - leaf name { type string; mandatory true; } - leaf image { - type reference-identifier; - mandatory true; - } - leaf flavor { - type reference-identifier; - mandatory true; - } - leaf-list networks { - type reference-identifier; - description "optional, will assign default network if not provided"; - } - - // TODO: consider supporting a template-id (such as HEAT) for more complex instantiation - - leaf reservation-id { - type instance-identifier { ct:instance-type ResourceReservation; - require-instance true; } - } - } - output { - uses common-intent-output; - leaf instance-id { - type instance-identifier { ct:instance-type ResourceAllocation; } - } - } - } - - rpc destroy-instance { - description "Destroy an instance of resource utilization and release it - back to the pool"; - input { - leaf instance-id { - type instance-identifier { ct:instance-type ResourceAllocation; - require-instance true; } - } - } - output { - uses common-intent-output; - } - } - - // PROVIDER INTENTS (should go into VIM module in the future) - rpc add-provider { - description "Register a new resource provider into reservation system"; - input { - leaf provider-type { - description "Select a specific resource provider type"; - mandatory true; - type enumeration { - enum openstack; - enum hp; - enum rackspace; - enum amazon { - status planned; - } - enum joyent { - status planned; - } - enum azure { - status planned; - } - } - default openstack; - } - uses mano:provider-credentials { - refine endpoint { - default "http://localhost:5000/v2.0/tokens"; - } - } - container tenant { - leaf id { type string; } - leaf name { type string; } - } - } - output { - uses common-intent-output; - leaf provider-id { - type instance-identifier { ct:instance-type ResourceProvider; } - } - } - } - - // TODO... - notification reservation-event; - notification capacity-event; - notification allocation-event; - } diff --git a/docs/requirements/summary.rst b/docs/requirements/summary.rst deleted file mode 100644 index fcf10d1..0000000 --- a/docs/requirements/summary.rst +++ /dev/null @@ -1,27 +0,0 @@ -.. This work is licensed under a Creative Commons Attribution 4.0 International License. -.. http://creativecommons.org/licenses/by/4.0 - -====================== -Summary and conclusion -====================== - -Resource Reservation and Resource Capacity Management are features to be -supported by the VIM and exposed to the consumer via the VIM NBI. These -features have been specified by ETSI NFV. - -This document has described several use cases and corresponding high level -flows where Resource Reservation and Capacity Management are of great benefit -for the consumer of the virtualised resource management interface: the NFVO or -the VNFM. The use cases include: - -* Notification of changes in capacity in the NFVI -* Query of available resource capacity -* Reservation of a resource or set of resources for immediate use -* Reservation of a resource or set of resources for future use - -The Promise project has performed a gap analysis in order to fulfill the -required functionality. Based on the gap analysis an implementation plan and -way forward has been proposed, including a possible design architecture and -high level information model. Immediate next steps of this project is to -deliver a working Proof-of-Concepts (PoC) and engage upstream communities to -fill out the gaps identified by Promise. diff --git a/docs/requirements/supported_apis.rst b/docs/requirements/supported_apis.rst deleted file mode 100644 index 40cba8d..0000000 --- a/docs/requirements/supported_apis.rst +++ /dev/null @@ -1,608 +0,0 @@ -.. This work is licensed under a Creative Commons Attribution 4.0 International License. -.. http://creativecommons.org/licenses/by/4.0 - -ANNEX C: Supported APIS -======================= - -Add Provider ------------- - -Register a new resource provider (e.g. OpenStack) into reservation system. - -Request parameters - -============================ =========== ============================================== -Name Type Description -============================ =========== ============================================== -provider-type Enumeration Name of the resource provider -endpoint URI Targer URL end point for the resource provider -username String User name -password String Password -region String Specified region for the provider -tenant.id String Id of the tenant -tenant.name String Name of the tenant -============================ =========== ============================================== - -Response parameters - -============================ =========== ============================================== -Name Type Description -============================ =========== ============================================== -provider-id String Id of the new resource provider -result Enumeration Result info -============================ =========== ============================================== - -.. http:post:: /add-provider - :noindex: - - **Example request**: - - .. sourcecode:: http - - POST /add-provider HTTP/1.1 - Accept: application/json - - { - "provider-type": "openstack", - "endpoint": "http://10.0.2.15:5000/v2.0/tokens", - "username": "promise_user", - "password": "******", - "tenant": { - "name": "promise" - } - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 200 OK - Content-Type: application/json - - { - "provider-id": "f25ed9cb-de57-43d5-9b4a-a389a1397302", - "result": "ok" - } - -Create Reservation ------------------- - -Make a request to the reservation system to reserve resources. - -Request parameters - -============================ =============== ============================================== -Name Type Description -============================ =============== ============================================== -zone String Id to an availability zone -start DateTime Timestamp when the consumption of reserved - resources can begin -end DateTime Timestamp when the consumption of reserved - resources should end -capacity.cores int16 Amount of cores to be reserved -capacity.ram int32 Amount of RAM to be reserved -capacity.instances int16 Amount of instances to be reserved -capacity.addresses int32 Amount of public IP addresses to be reserved -elements ResourceElement List of pre-existing resource elements - to be reserved -============================ =============== ============================================== - -Response parameters - -============================ =========== ============================================== -Name Type Description -============================ =========== ============================================== -reservation-id String Id of the reservation -result Enumeration Result info -message String Output message -============================ =========== ============================================== - -.. http:post:: /create-reservation - :noindex: - - **Example request**: - - .. sourcecode:: http - - POST /create-reservation HTTP/1.1 - Accept: application/json - - { - "capacity": { - "cores": "5", - "ram": "25600", - "addresses": "3", - "instances": "3" - }, - "start": "2016-02-02T00:00:00Z", - "end": "2016-02-03T00:00:00Z" - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 200 OK - Content-Type: application/json - - { - "reservation-id": "269b2944-9efc-41e0-b067-6898221e8619", - "result": "ok", - "message": "reservation request accepted" - } - -Update Reservation ------------------- - -Update reservation details for an existing reservation. - -Request parameters - -============================ =============== ============================================== -Name Type Description -============================ =============== ============================================== -reservation-id String Id of the reservation to be updated -zone String Id to an availability zone -start DateTime Updated timestamp when the consumption of - reserved resources can begin -end DateTime Updated timestamp when the consumption of - reserved resources should end -capacity.cores int16 Updated amount of cores to be reserved -capacity.ram int32 Updated amount of RAM to be reserved -capacity.instances int16 Updated amount of instances to be reserved -capacity.addresses int32 Updated amount of public IP addresses - to be reserved -elements ResourceElement Updated list of pre-existing resource elements - to be reserved -============================ =============== ============================================== - -Response parameters - -============================ =========== ============================================== -Name Type Description -============================ =========== ============================================== -result Enumeration Result info -message String Output message -============================ =========== ============================================== - -.. http:post:: /update-reservation - :noindex: - - **Example request**: - - .. sourcecode:: http - - POST /update-reservation HTTP/1.1 - Accept: application/json - - { - "reservation-id": "269b2944-9efv-41e0-b067-6898221e8619", - "capacity": { - "cores": "1", - "ram": "5120", - "addresses": "1", - "instances": "1" - } - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 200 OK - Content-Type: application/json - - { - "result": "ok", - "message": "reservation update successful" - } - -Cancel Reservation ------------------- - -Cancel the reservation. - -Request parameters - -============================ =============== ============================================== -Name Type Description -============================ =============== ============================================== -reservation-id String Id of the reservation to be canceled -============================ =============== ============================================== - -Response parameters - -============================ =========== ============================================== -Name Type Description -============================ =========== ============================================== -result Enumeration Result info -message String Output message -============================ =========== ============================================== - -.. http:post:: /cancel-reservation - :noindex: - - **Example request**: - - .. sourcecode:: http - - POST /cancel-reservation HTTP/1.1 - Accept: application/json - - { - "reservation-id": "269b2944-9efv-41e0-b067-6898221e8619" - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 200 OK - Content-Type: application/json - - { - "result": "ok", - "message": "reservation canceled" - } - -Query Reservation ------------------ - -Query the reservation system to return matching reservation(s). - -Request parameters - -============================ ================== ============================================== -Name Type Description -============================ ================== ============================================== -zone String Id to an availability zone -show-utilization Boolean Show capacity utilization -without ResourceCollection Excludes specified collection identifiers - from the result -elements.some ResourceElement Query for ResourceCollection(s) that contain - some or more of these element(s) -elements.every ResourceElement Query for ResourceCollection(s) that contain - all of these element(s) -window.start DateTime Matches entries that are within the specified - start/end window -window.end DateTime -wndow.scope Enumeration Matches entries that start {and/or} end - within the time window -============================ ================== ============================================== - -Response parameters - -============================ =================== ================================ -Name Type Description -============================ =================== ================================ -reservations ResourceReservation List of matching reservations -utilization CapacityUtilization Capacity utilization over time -============================ =================== ================================ - -.. http:post:: /query-reservation - :noindex: - - **Example request**: - - .. sourcecode:: http - - POST /query-reservation HTTP/1.1 - Accept: application/json - - { - "show-utilization": false, - "window": { - "start": "2016-02-01T00:00:00Z", - "end": "2016-02-04T00:00:00Z" - } - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 200 OK - Content-Type: application/json - - { - "reservations": [ - "269b2944-9efv-41e0-b067-6898221e8619" - ], - "utilization": [] - } - -Create Instance ---------------- - -Create an instance of specified resource(s) utilizing capacity from the pool. - -Request parameters - -============================ =============== ============================================== -Name Type Description -============================ =============== ============================================== -provider-id String Id of the resource provider -reservation-id String Id of the resource reservation -name String Name of the instance -image String Id of the image -flavor String Id of the flavor -networks Uuid List of network uuids -============================ =============== ============================================== - -Response parameters - -============================ =========== ============================================== -Name Type Description -============================ =========== ============================================== -instance-id String Id of the instance -result Enumeration Result info -message String Output message -============================ =========== ============================================== - -.. http:post:: /create-instance - :noindex: - - **Example request**: - - .. sourcecode:: http - - POST /create-instance HTTP/1.1 - Accept: application/json - - { - "provider-id": "f25ed9cb-de57-43d5-9b4a-a389a1397302", - "name": "vm1", - "image": "ddffc6f5-5c86-4126-b0fb-2c71678633f8", - "flavor": "91bfdf57-863b-4b73-9d93-fc311894b902" - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 200 OK - Content-Type: application/json - - { - "instance-id": "82572779-896b-493f-92f6-a63008868250", - "result": "ok", - "message": "created-instance request accepted" - } - -Destroy Instance ----------------- - -Destroy an instance of resource utilization and release it back to the pool. - -Request parameters - -============================ =============== ============================================== -Name Type Description -============================ =============== ============================================== -instance-id String Id of the instance to be destroyed -============================ =============== ============================================== - -Response parameters - -============================ =========== ============================================== -Name Type Description -============================ =========== ============================================== -result Enumeration Result info -message String Output message -============================ =========== ============================================== - -.. http:post:: /destroy-instance - :noindex: - - **Example request**: - - .. sourcecode:: http - - POST /destroy-instance HTTP/1.1 - Accept: application/json - - { - "instance-id": "82572779-896b-493f-92f6-a63008868250" - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 200 OK - Content-Type: application/json - - { - "result": "ok", - "message": "instance destroyed and resource released back to pool" - } - -Decrease Capacity ------------------ - -Decrease total capacity for the reservation system for a given time window. - -Request parameters - -============================ =============== ============================================== -Name Type Description -============================ =============== ============================================== -source String Id of the resource container -start DateTime Start/end defines the time window when total - capacity is decreased -end DateTime -capacity.cores int16 Decreased amount of cores -capacity.ram int32 Decreased amount of RAM -capacity.instances int16 Decreased amount of instances -capacity.addresses int32 Decreased amount of public IP addresses -============================ =============== ============================================== - -Response parameters - -============================ =========== ============================================== -Name Type Description -============================ =========== ============================================== -pool-id String Id of the resource pool -result Enumeration Result info -message String Output message -============================ =========== ============================================== - -.. http:post:: /decrease-capacity - :noindex: - - **Example request**: - - .. sourcecode:: http - - POST /decrease-capacity HTTP/1.1 - Accept: application/json - - { - "source": "ResourcePool:4085f0da-8030-4252-a0ff-c6f93870eb5f", - "capacity": { - "cores": "3", - "ram": "5120", - "addresses": "1" - } - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 200 OK - Content-Type: application/json - - { - "pool-id": "c63b2a41-bcc6-42f6-8254-89d633e1bd0b", - "result": "ok", - "message": "capacity decrease successful" - } - -Increase Capacity ------------------ - -Increase total capacity for the reservation system for a given time window. - -Request parameters - -============================ =============== ============================================== -Name Type Description -============================ =============== ============================================== -source String Id of the resource container -start DateTime Start/end defines the time window when total - capacity is increased -end DateTime -capacity.cores int16 Increased amount of cores -capacity.ram int32 Increased amount of RAM -capacity.instances int16 Increased amount of instances -capacity.addresses int32 Increased amount of public IP addresses -============================ =============== ============================================== - -Response parameters - -============================ =========== ============================================== -Name Type Description -============================ =========== ============================================== -pool-id String Id of the resource pool -result Enumeration Result info -message String Output message -============================ =========== ============================================== - -.. http:post:: /increase-capacity - :noindex: - - **Example request**: - - .. sourcecode:: http - - POST /increase-capacity HTTP/1.1 - Accept: application/json - - { - "source": "ResourceProvider:f6f13fe3-0126-4c6d-a84f-15f1ab685c4f", - "capacity": { - "cores": "20", - "ram": "51200", - "instances": "10", - "addresses": "10" - } - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 200 OK - Content-Type: application/json - - { - "pool-id": "279217a4-7461-4176-bf9d-66770574ca6a", - "result": "ok", - "message": "capacity increase successful" - } - -Query Capacity --------------- - -Query for capacity information about a specified resource collection. - -Request parameters - -============================ ================== ============================================== -Name Type Description -============================ ================== ============================================== -capacity Enumeration Return total or reserved or available or - usage capacity information -zone String Id to an availability zone -show-utilization Boolean Show capacity utilization -without ResourceCollection Excludes specified collection identifiers - from the result -elements.some ResourceElement Query for ResourceCollection(s) that contain - some or more of these element(s) -elements.every ResourceElement Query for ResourceCollection(s) that contain - all of these element(s) -window.start DateTime Matches entries that are within the specified - start/end window -window.end DateTime -window.scope Enumeration Matches entries that start {and/or} end - within the time window -============================ ================== ============================================== - -Response parameters - -============================ =================== ================================ -Name Type Description -============================ =================== ================================ -collections ResourceCollection List of matching collections -utilization CapacityUtilization Capacity utilization over time -============================ =================== ================================ - -.. http:post:: /query-capacity - :noindex: - - **Example request**: - - .. sourcecode:: http - - POST /query-capacity HTTP/1.1 - Accept: application/json - - { - "show-utilization": false - } - - **Example response**: - - .. sourcecode:: http - - HTTP/1.1 201 CREATED - Content-Type: application/json - - { - "collections": [ - "ResourcePool:279217a4-7461-4176-bf9d-66770574ca6a" - ], - "utilization": [] - } - diff --git a/docs/requirements/usecase.rst b/docs/requirements/usecase.rst deleted file mode 100644 index bdf8888..0000000 --- a/docs/requirements/usecase.rst +++ /dev/null @@ -1,121 +0,0 @@ -.. This work is licensed under a Creative Commons Attribution 4.0 International License. -.. http://creativecommons.org/licenses/by/4.0 - -======================= -Use cases and scenarios -======================= - -Use cases -========= - -Resource reservation is a basic feature in any virtualization-based network -operation. In order to perform such resource reservation from NFVO to VIM, NFVI -capacity information is also necessary at the NFVO side. Below, four use cases -to show typical requirements and solutions for capacity management and resource -reservation is presented. A typical use case as considered for the Brahmaputra -release is described in :ref:`uc-brahmaputra`. - -#. Resource capacity management -#. Resource reservation for immediate use -#. Resource reservation for future use -#. Co-existence of reservations and allocation requests without reservation - -Resource capacity management ----------------------------- - -NFVO takes the first decision on in which NFVI it would instantiate a VNF. Along -with NFVIs resource attributes (e.g. availability of hardware accelerators, -particular CPU architectures etc.), NFVO needs to know available capacity of an -NFVI in order to make an informed decision on selecting a particular NFVI. Such -capacity information shall be in a coarser granularity than the respective VIM, -as VIM maintains capacity information of its NFVI in fine details. However a -very coarse granularity, like simply the number of available virtual CPU cores, -may not be sufficient. In order to allow the NFVO to make well founded -allocation decisions, an appropriate level to expose the available capacity may -be per flavor. Capacity information may be required for the complete NFVI, or -per partition or availability zone, or other granularities. Therefore, VIM -requires to inform the NFVO about available capacity information regarding its -NFVI at a pre-determined abstraction, either by a query-response, or in an -event-based, or in a periodical way. - -Resource reservation for immediate use --------------------------------------- - -Reservation is inherently for the future. Even if some reserved resources are to -be consumed instantly, there is a network latency between the issuance of a -resource reservation request from the NFVO, a response from the VIM, and actual -allocation of the requested resources to a VNF/VNFM. Within such latency, -resource capacity in the NFVI in question could change, e.g., due to failure, -allocation to a different request. Therefore, the response from a VIM to the -NFVO to a resource reservation request for immediate use should have a validity -period which shows until when this VIM can hold the requested resources. During -this time, the NFVO should proceed to allocation if it wishes to consume the -reserved requested. If allocation is not performed within the validity period, -the response from VIM for a particular resource reservation request becomes -invalid and VIM is not liable to provide those resources to NFVO/VNFM anymore. -Reservations requests for immediate use do not have a start time but may have -an end time. - -Resource reservation for future use ------------------------------------ - -Network operators may want to reserve extra resources for future use. Such -necessity could arise from predicted congestion in telecom nodes e.g. due to -local traffic spikes for concerts, natural disasters etc. In such a case, the -NFVO, while sending a resource reservation request to the VIM, shall include a -start time (and an end time if necessary). The start time indicates at what -time the reserved resource shall be available to a designated consumer e.g. a -VNF/VNFM. Here, the requirement is that the reserved resources shall be -available when the start time arrives. After the start time has arrived, the -reserved resources are allocated to the designated consumer(s). An explicit -allocation request is needed. How actually these requested resources are held -by the VIM for the period in between the arrival of the resource reservation -request and the actual allocation is outside the scope of this requirement -project. - -Co-existence of reservations and allocation requests without reservation ------------------------------------------------------------------------- - -In a real environment VIM will have to handle allocation requests without any -time reference, i.e. time-unbound, together with time-bound reservations and -allocation requests with an explicitly indicated end-time. A granted -reservation for the future will effectively reduce the available capacity for -any new time-unbound allocation request. The consequence is that reservations, -even those far in the future, may result in denial of service for new -allocation requests. - -To alleviate this problem several approaches can be taken. They imply an -implicit or explicit priority scheme: - -* Allocation requests without reservation and which are time-unbound will be - granted resources in a best-effort way: if there is instant capacity, but the - resources may be later withdrawn due to the start time of a previously - granted reservation -* Both allocation requests and reservation requests contain a priority which - may be related to SLAs and contractual conditions between the tenant and the - NFVI provider. Interactions may look like: - - * A reservation request for future use may cancel another, not yet - started, reservation with lower priority - * An allocation request without reservations and time-unbound [#unbound]_ - may be granted resources and prevent a future reservation with lower - priority from getting resources at start time - * A reservation request may result in terminating resources allocated to a - request with no reservation, if the latter has lower priority - -.. [#unbound] In this case, the consumer (VNFM or NFVO) requests to immediately - instantiate and assign virtualized resources without having - reserved the resources beforehand - -Scenarios -========= - -This section describes the expected behavior of the system in different -scenarios. - -As we are targeting a cloud platform with the above use cases, it is crucial to -keep the flexibility in the system. By this means it is hard to explicitely -block hardware resources for the future and ensure their availablility for -allocation therefore it can happen that the reservation plan cannot be fulfilled -due to certain changes in the underlying environment. We need to ensure that we -are prepared for error and edge cases during the design period. |
