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Diffstat (limited to 'docs/development')
| -rw-r--r-- | docs/development/actors/vfc/vfc.rst | 162 |
1 files changed, 158 insertions, 4 deletions
diff --git a/docs/development/actors/vfc/vfc.rst b/docs/development/actors/vfc/vfc.rst index c99c9340..e7d8d3e7 100644 --- a/docs/development/actors/vfc/vfc.rst +++ b/docs/development/actors/vfc/vfc.rst @@ -2,14 +2,168 @@ .. Creative Commons Attribution 4.0 International License. .. http://creativecommons.org/licenses/by/4.0 -################# +.. _vfc-label: + +########## VFC Actor -################# +########## .. contents:: :depth: 3 Overview of VFC Actor -############################# +###################### +ONAP Policy Framework enables VFC as one of the supported actors. + +.. note:: +There has not been any support given to the Policy Framework project for the VFC Actor +in several releases. Thus, the code and information provided is to the best of the +knowledge of the team. If there are any questions or problems, please consult the VFC +Project to help provide guidance. + +VFC uses a REST-based +interface. However, as requests may not complete right away, a REST-based polling +interface is used to check the status of the request. The *jobId* is extracted +from each response and is appended to the *pathGet* configuration parameter to +generate the URL used to poll for completion. + +Each operation supported by the actor is associated with its own java class, which is +responsible for populating the request structure appropriately and sending the request. +The operation-specific classes are all derived from the *VfcOperation* class, which is, +itself, derived from *HttpOperation*. The following operations are currently supported: + +- Restart + + +Request +####### + +A number of nested structures are populated within the request. Several of them are +populated from items found within the A&AI "enrichment" data provided by DCAE with +the ONSET event. The following table lists the contents of some of the fields that +appear within these structures. + ++----------------------------------+---------+----------------------------------------------------------------------+ +| Field Name | Type | Description | ++----------------------------------+---------+----------------------------------------------------------------------+ ++----------------------------------+---------+----------------------------------------------------------------------+ +| top level: | | | ++----------------------------------+---------+----------------------------------------------------------------------+ +| *requestId* | string | Inserted by Policy. Maps to the UUID sent by DCAE i.e. the ID | +| | | used throughout the closed loop lifecycle to identify a request. | ++----------------------------------+---------+----------------------------------------------------------------------+ +| *nsInstanceId* | string | Set by Policy, using the | +| | | "service-instance.service-instance-id" property | +| | | found within the enrichment data. | ++----------------------------------+---------+----------------------------------------------------------------------+ ++----------------------------------+---------+----------------------------------------------------------------------+ +| healVnfData: | | | ++----------------------------------+---------+----------------------------------------------------------------------+ +| *cause* | string | Set by Policy to the name of the operation. | ++----------------------------------+---------+----------------------------------------------------------------------+ +| *vnfInstanceId* | string | Set by Policy, using the | +| | | "generic-vnf.vnf-id" property | +| | | found within the enrichment data. | ++----------------------------------+---------+----------------------------------------------------------------------+ ++----------------------------------+---------+----------------------------------------------------------------------+ +| additionalParams: | | | ++----------------------------------+---------+----------------------------------------------------------------------+ +| *action* | | Set by Policy to the name of the operation. | ++----------------------------------+---------+----------------------------------------------------------------------+ ++----------------------------------+---------+----------------------------------------------------------------------+ +| actionvminfo: | | | ++----------------------------------+---------+----------------------------------------------------------------------+ +| *vmid* | string | Set by Policy, using the | +| | | "vserver.vserver-id" property | +| | | found within the enrichment data. | ++----------------------------------+---------+----------------------------------------------------------------------+ +| *vmname* | string | Set by Policy, using the | +| | | "vserver.vserver-name" property | +| | | found within the enrichment data. | ++----------------------------------+---------+----------------------------------------------------------------------+ + + +Examples +######## + +Suppose the *ControlLoopOperationParams* were populated as follows: + +.. code-block:: bash + + { + TBD + } + +An example of a request constructed by the actor using the above parameters, sent to the +VFC REST server: + +.. code-block:: bash + + { + TBD + } + +An example response received to the initial request, from the VFC REST service: + +.. code-block:: bash + + { + TBD + } + +An example URL used for the "get" (i.e., poll) request subsequently sent to VFC: + +.. code-block:: bash + + TBD + +An example response received to the poll request, when VFC has not completed the request: + +.. code-block:: bash + + { + TBD + } + +An example response received to the poll request, when VFC has completed the request: + +.. code-block:: bash + + { + TBD + } + + +Configuration of the VFC Actor +############################### + +The following table specifies the fields that should be provided to configure the VFC +actor. + +=============================== ==================== ================================================================== +Field name type Description +=============================== ==================== ================================================================== +clientName string Name of the HTTP client to use to send the request to the + VFC REST server. +timeoutSec integer (optional) Maximum time, in seconds, to wait for a response to be received + from the REST server. Defaults to 90s. +=============================== ==================== ================================================================== + +The individual operations are configured using these same field names. However, all +of them are optional, as they inherit their values from the +corresponding actor-level fields. The following additional fields are specified at +the individual operation level. -This is a place-holder for the actor documentation. +=============================== ==================== =================================================================== +Field name type Description +=============================== ==================== =================================================================== +path string URI appended to the URL. Note: this + should not include a leading or trailing slash. +maxGets integer (optional) Maximum number of get/poll requests to make to determine the + final outcome of the request. Defaults to 0 (i.e., no polling). +waitSecGet integer Time, in seconds, to wait between issuing "get" requests. + Defaults to 20s. +pathGet string Path to use when polling (i.e., issuing "get" requests). + Note: this should include a trailing slash, but no leading + slash. +=============================== ==================== =================================================================== |