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-rw-r--r--docs/manuals/get-valid-server-state.rst125
-rw-r--r--docs/manuals/index.rst13
-rw-r--r--docs/manuals/mark-host-down_manual.rst122
3 files changed, 0 insertions, 260 deletions
diff --git a/docs/manuals/get-valid-server-state.rst b/docs/manuals/get-valid-server-state.rst
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--- a/docs/manuals/get-valid-server-state.rst
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-.. This work is licensed under a Creative Commons Attribution 4.0 International License.
-.. http://creativecommons.org/licenses/by/4.0
-
-======================
-Get valid server state
-======================
-
-Related Blueprints:
-===================
-
-https://blueprints.launchpad.net/nova/+spec/get-valid-server-state
-
-Problem description
-===================
-
-Previously when the owner of a VM has queried his VMs, he has not received
-enough state information, states have not changed fast enough in the VIM and
-they have not been accurate in some scenarios. With this change this gap is now
-closed.
-
-A typical case is that, in case of a fault of a host, the user of a high
-availability service running on top of that host, needs to make an immediate
-switch over from the faulty host to an active standby host. Now, if the compute
-host is forced down [1] as a result of that fault, the user has to be notified
-about this state change such that the user can react accordingly. Similarly,
-a change of the host state to "maintenance" should also be notified to the
-users.
-
-What is changed
-===============
-
-A new ``host_status`` parameter is added to the ``/servers/{server_id}`` and
-``/servers/detail`` endpoints in microversion 2.16. By this new parameter
-user can get additional state information about the host.
-
-``host_status`` possible values where next value in list can override the
-previous:
-
-- ``UP`` if nova-compute is up.
-- ``UNKNOWN`` if nova-compute status was not reported by servicegroup driver
- within configured time period. Default is within 60 seconds,
- but can be changed with ``service_down_time`` in nova.conf.
-- ``DOWN`` if nova-compute was forced down.
-- ``MAINTENANCE`` if nova-compute was disabled. MAINTENANCE in API directly
- means nova-compute service is disabled. Different wording is used to avoid
- the impression that the whole host is down, as only scheduling of new VMs
- is disabled.
-- Empty string indicates there is no host for server.
-
-``host_status`` is returned in the response in case the policy permits. By
-default the policy is for admin only in Nova policy.json::
-
- "os_compute_api:servers:show:host_status": "rule:admin_api"
-
-For an NFV use case this has to also be enabled for the owner of the VM::
-
- "os_compute_api:servers:show:host_status": "rule:admin_or_owner"
-
-REST API examples:
-==================
-
-Case where nova-compute is enabled and reporting normally::
-
- GET /v2.1/{tenant_id}/servers/{server_id}
-
- 200 OK
- {
- "server": {
- "host_status": "UP",
- ...
- }
- }
-
-Case where nova-compute is enabled, but not reporting normally::
-
- GET /v2.1/{tenant_id}/servers/{server_id}
-
- 200 OK
- {
- "server": {
- "host_status": "UNKNOWN",
- ...
- }
- }
-
-Case where nova-compute is enabled, but forced_down::
-
- GET /v2.1/{tenant_id}/servers/{server_id}
-
- 200 OK
- {
- "server": {
- "host_status": "DOWN",
- ...
- }
- }
-
-Case where nova-compute is disabled::
-
- GET /v2.1/{tenant_id}/servers/{server_id}
-
- 200 OK
- {
- "server": {
- "host_status": "MAINTENANCE",
- ...
- }
- }
-
-Host Status is also visible in python-novaclient::
-
- +-------+------+--------+------------+-------------+----------+-------------+
- | ID | Name | Status | Task State | Power State | Networks | Host Status |
- +-------+------+--------+------------+-------------+----------+-------------+
- | 9a... | vm1 | ACTIVE | - | RUNNING | xnet=... | UP |
- +-------+------+--------+------------+-------------+----------+-------------+
-
-Links:
-======
-
-[1] Manual for OpenStack NOVA API for marking host down
-http://artifacts.opnfv.org/doctor/docs/manuals/mark-host-down_manual.html
-
-[2] OpenStack compute manual page
-http://developer.openstack.org/api-ref-compute-v2.1.html#compute-v2.1
diff --git a/docs/manuals/index.rst b/docs/manuals/index.rst
deleted file mode 100644
index 05831b2b..00000000
--- a/docs/manuals/index.rst
+++ /dev/null
@@ -1,13 +0,0 @@
-.. This work is licensed under a Creative Commons Attribution 4.0 International License.
-.. http://creativecommons.org/licenses/by/4.0
-
-*******
-Manuals
-*******
-
-.. toctree::
- :numbered:
- :maxdepth: 2
-
-.. include:: mark-host-down_manual.rst
-.. include:: get-valid-server-state.rst
diff --git a/docs/manuals/mark-host-down_manual.rst b/docs/manuals/mark-host-down_manual.rst
deleted file mode 100644
index 3815205d..00000000
--- a/docs/manuals/mark-host-down_manual.rst
+++ /dev/null
@@ -1,122 +0,0 @@
-.. This work is licensed under a Creative Commons Attribution 4.0 International License.
-.. http://creativecommons.org/licenses/by/4.0
-
-=========================================
-OpenStack NOVA API for marking host down.
-=========================================
-
-Related Blueprints:
-===================
-
- https://blueprints.launchpad.net/nova/+spec/mark-host-down
- https://blueprints.launchpad.net/python-novaclient/+spec/support-force-down-service
-
-What the API is for
-===================
-
- This API will give external fault monitoring system a possibility of telling
- OpenStack Nova fast that compute host is down. This will immediately enable
- calling of evacuation of any VM on host and further enabling faster HA
- actions.
-
-What this API does
-==================
-
- In OpenStack the nova-compute service state can represent the compute host
- state and this new API is used to force this service down. It is assumed
- that the one calling this API has made sure the host is also fenced or
- powered down. This is important, so there is no chance same VM instance will
- appear twice in case evacuated to new compute host. When host is recovered
- by any means, the external system is responsible of calling the API again to
- disable forced_down flag and let the host nova-compute service report again
- host being up. If network fenced host come up again it should not boot VMs
- it had if figuring out they are evacuated to other compute host. The
- decision of deleting or booting VMs there used to be on host should be
- enhanced later to be more reliable by Nova blueprint:
- https://blueprints.launchpad.net/nova/+spec/robustify-evacuate
-
-REST API for forcing down:
-==========================
-
- Parameter explanations:
- tenant_id: Identifier of the tenant.
- binary: Compute service binary name.
- host: Compute host name.
- forced_down: Compute service forced down flag.
- token: Token received after successful authentication.
- service_host_ip: Serving controller node ip.
-
- request:
- PUT /v2.1/{tenant_id}/os-services/force-down
- {
- "binary": "nova-compute",
- "host": "compute1",
- "forced_down": true
- }
-
- response:
- 200 OK
- {
- "service": {
- "host": "compute1",
- "binary": "nova-compute",
- "forced_down": true
- }
- }
-
- Example:
- curl -g -i -X PUT http://{service_host_ip}:8774/v2.1/{tenant_id}/os-services
- /force-down -H "Content-Type: application/json" -H "Accept: application/json
- " -H "X-OpenStack-Nova-API-Version: 2.11" -H "X-Auth-Token: {token}" -d '{"b
- inary": "nova-compute", "host": "compute1", "forced_down": true}'
-
-CLI for forcing down:
-=====================
-
- nova service-force-down <hostname> nova-compute
-
- Example:
- nova service-force-down compute1 nova-compute
-
-REST API for disabling forced down:
-===================================
-
- Parameter explanations:
- tenant_id: Identifier of the tenant.
- binary: Compute service binary name.
- host: Compute host name.
- forced_down: Compute service forced down flag.
- token: Token received after successful authentication.
- service_host_ip: Serving controller node ip.
-
- request:
- PUT /v2.1/{tenant_id}/os-services/force-down
- {
- "binary": "nova-compute",
- "host": "compute1",
- "forced_down": false
- }
-
- response:
- 200 OK
- {
- "service": {
- "host": "compute1",
- "binary": "nova-compute",
- "forced_down": false
- }
- }
-
- Example:
- curl -g -i -X PUT http://{service_host_ip}:8774/v2.1/{tenant_id}/os-services
- /force-down -H "Content-Type: application/json" -H "Accept: application/json
- " -H "X-OpenStack-Nova-API-Version: 2.11" -H "X-Auth-Token: {token}" -d '{"b
- inary": "nova-compute", "host": "compute1", "forced_down": false}'
-
-CLI for disabling forced down:
-==============================
-
- nova service-force-down --unset <hostname> nova-compute
-
- Example:
- nova service-force-down --unset compute1 nova-compute