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-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; }
-
- 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 ResourceFlavor {
- description "currently NOT an extension of ResourceElement.";
- key "id";
- leaf id { type string; }
- leaf name { type string; }
- leaf disk { type uint32; units 'GB'; default 0; }
- leaf ram { type uint32; units 'MB'; default 0; }
- leaf vcpus { type uint16; default 0; }
- }
-
- 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 ResourceFlavor; }
- }
- }
-
- 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 acm:access-credentials {
- refine strategy {
- default keystone;
- }
- refine endpoint {
- default "http://localhost:5000/v2.0";
- }
- }
- leaf user-domain-name { type string; }
- container project {
- leaf id { type string; }
- leaf name { type string; }
- leaf domain-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;
-}