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authorwr148d <wr148d@att.com>2022-10-31 09:42:06 -0400
committerwr148d <wr148d@att.com>2022-11-09 09:52:45 -0500
commit5b83ba0814d6a046d45146e97762626700440520 (patch)
tree020798e93a78dd1d72847803174c8bbb0f58ee65 /docs/AAI REST API Documentation/AAIRESTAPI_AMSTERDAM.rst
parent58f0fd2f6ef58de52e1f9a73540c1bb895c0d6e6 (diff)
[AAI] Fix doc config files
Issue-ID: AAI-3572 Change-Id: Icb2bce5d096d9c807aa6fe2a72243c6dc16e5028 Signed-off-by: wr148d <wr148d@att.com>
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-.. contents::
- :depth: 3
-..
-.. This work is licensed under a Creative Commons Attribution 4.0 International License.
-.. http://creativecommons.org/licenses/by/4.0
-
-\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
-
-AAI REST API
-++++++++++++
-
-Overview
-========
-
-The AAI REST API provides access to the AAI active inventory graph. The
-API is largely configured off of models and configuration files. Each
-vertex in the graph has an API that can be called separately or, if part
-of a tree structure, as a nested element with one or more generations
-(parent, grandparent, etc.).
-
-The edges of the graph are provisioned using a relationship list
-construct. For PUT methods, a relationship contains the vertex type or
-category (related-to) and a list of relationship data which captures the
-key pieces of data required to uniquely identify the resource. On a GET
-method, the above information and a URL are returned. The URL can be
-used to GET all the details of that object. The URL returned is suitable
-for retrying failed commands but should not be expected to be cacheable
-for very long periods (e.g., the version of the URL may get deprecated
-when the release changes).
-
-Concurrency control for AAI is in place. The assumptions made for the
-implementation are as follows:
-
-- A client always gets a resource before updating through PUT or
- deleting it.
-
-- All resource updates and deletions are done via the AAI REST APIs
-
-- This solution will apply to PUT and DELETE operations.
-
-- The resource-version attribute is now in every container
-
-- The update API is not subject to concurrency control because it is
- only intended to be used by clients who are the definitive source of
- truth for the attributes they are changing. An update through the
- update API will however reset the resource-version so clients using
- PUT and DELETE will not risk updating with stale data.
-
-- The PATCH REST verb is not subject to concurrency control because it
- is only intended to be used by clients who are the definitive source
- of truth for the attributes they are changing. An update through the
- update API will however reset the resource-version so clients using
- PUT and DELETE will not risk updating with stale data.
-
-How to Use this Document
-========================
-
-When you click on the API documentation, you will see the Summary of
-APIs broken down by namespace (e.g., cloud-infrastructure, business,
-network, service-design-and-creation). You can search for **Tag:**
-(matching the explicit case) to move from namespace to namespace through
-the Summary.
-
-Search for **Paths** to skip past the Summary section where there will
-be more detail about each API. Query parameters are provided here, as
-well as links to our error codes.
-
-Search for **Schema definitions** to see the definitions of the
-payloads. In your browser URL, you can type /#/definitions/node-name at
-the end of the html address to skip directly to a payload definition.
-
-Note that the schema definitions now contain information about the
-delete scope of a node (also referenced in this document) and some
-related node information (also reference in this document as Edges).
-
-Once AAI has a model and configured it, the AAI development server can
-be used to generate sample XML and JSON payloads, according to the
-Accept header passed in the request. This is done by calling the
-"plural" version of an API followed by the word example (e.g.,
-/vserver/vservers/example). This returns a GET result array with one
-entry. That single entry can be sent in a PUT request with actual data
-(the resource-id does not need to be in the PUT payload as it is on the
-URL).
-
-Document Conventions
-====================
-
-Information that is largely guidance or aspirational will be show in
-gray italicized text. This information should not be relied upon or
-referenced at this point except with the understanding that it WILL
-change.
-
-**Bold blue text** will be used to cover communication to our clients
-that may not be enforced by AAI. The sources of truth (our clients)
-populate AAI and are expected to send the correct information, having
-applied business rules that live in the client systems.
-
-Deprecation Warnings and History
-================================
-
-V11
-
-API retirements:
-
-- The actions/update API will be retired. Clients must switch to PATCH.
- There is one grandfathered usage for vpe update flows which will be
- retired in v11.
-
-- The edge tag query will be retired.
-
-Notable attribute and/or valid value changes (generally also impacts
-events):
-
-- The persona-model-id and persona-version will be replaced with
- model-invariant-id (same value as persona-model-id) and
- model-version-id (the UUID of the specific version of a model).
- Persona-model-customization-id will be replaced by
- model-customization-id.
-
-- The operational-state attribute will be replaced by
- operational-status and the only valid values will be in-service-path
- and out-of-service-path
-
-- The vpn-binding object will be split in two to reflect more than one
- route-target per binding. The route-target will be a child of
- vpn-binding and some attributes will move from vpn-binding to
- route-target.
-
-- The following license related attributes will be removed from
- generic-vnf: license-key, entitlement-assignment-group-uuid,
- entitlement-resource-uuid, license-assignment-group-uuid, and
- license-key-uuid due to the introduction of the entitlement and
- license children.
-
-Event Specific:
-
-- Normal impacts due to renaming or adding attributes, splitting
- objects, etc. Please see swagger documentation for objects of
- interest.
-
-- In v11, clients that require lineage, children, or relationship
- information need to subscribe to a different DMaaP topic than the
- current one.
-
-Relationship List
-
-- The related-link will be a URI and thus not contain
- https://{serverroot} (impacts events)
-
-- Thhe related-link will be used on a PUT as the "first choice" to
- identify the related resource. The relationship-data structure, which
- contains the unordered set of keys, is still an acceptable way to
- relate two objects but, *if both the relationship-data and the
- related-link are passed, and they don't agree, the related-link will
- be used without warning that the data is inconsistent*.
-
-- The relationship-data will be ignored on PUT.
-
-AAI API Definition
-==================
-
-The API structure is composed of:
-
-- The HTTP command, which indicates the operation to perform
-
-- The HTTP URI, which defines what object this operation is related to
-
-- The HTTP version, which MUST be 1.1
-
-Available HTTP commands are:
-
-- PUT: used to create or update an object
-
-- DELETE: used to delete an object or a set of objects
-
-- GET : used to query an object or set of objects
-
-- PATCH : used to update specific fields owned by the client doing the
- update
-
-The HTTP URI is built according to this pattern:
-
-https://{serverRoot}/{namespace}/{resource}
-
-- (serverRoot} refers to the server base url: hostname+port+base
- path+version. Port and base path are OPTIONAL but AAI will use port
- 8443 and base path aai. The Amsterdam release version will be v11.
-
-- {namespace} refers to the API namespace. Supported namespaces are
- cloud-infrastructure, business, service-design-and-creation, and
- network
-
-- {resource} refers to how the object is identified according to the
- namespace specifications.
-
-Example
-
-GET https://{hostname}:8443/aai
-/v11/cloud-infrastructure/cloud-regions/cloud-region/{cloud-owner}/{cloud-region-id}
-
-The GET requests support a depth query parameter allowing a query to
-stop after it has reached a certain point in the graph. This allows
-clients to minimize the data that is returned to them. A depth=0 returns
-the resource itself and none of its children.
-
-Data Assumptions
-----------------
-
-Given AAI is largely a correlation engine among disparate inventory
-types, AAI will accept values as they are sent, without validating the
-format or value of the input. It is incumbent upon the source of truth
-to provide valid information to AAI.
-
-Clients should do a GET prior to a PUT and change only the data that
-they mean to affect. The REST APIs expect the payload passed to replace
-the resource in AAI. **This is vital in our concurrency scheme. The
-client will be returned an opaque value per entity which needs to be
-returned back in the PUT. AAI will reject the PUT or DELETE if the
-opaque value doesn't match what AAI has stored for that entity.**
-
-If a leaf has been added to a model in vN+1, and a GET/PUT of a vN
-resource is done, AAI should not affect the new leaf (i.e., it should be
-left unchanged).
-
-PUT and Lists
--------------
-
-The PUT verb is used to both create and replace a resource. A given
-resource may have child resources (e.g., customers have service
-subscriptions; tenants have vservers and vservers have volumes).
-
-The following convention will be followed:
-
-If a resource is replaced and there are no tags for children, the
-children that exist will be left alone.
-
-If a resource is replaced and there are tags for children, the children
-will be replaced by the list passed. If the list is empty, then children
-will be deleted.
-
-Note that the relationship list is a type of child resource. The same
-conventions are followed. It is especially critical to ensure that you
-do not send an incomplete relationship list and therefore remove edges
-in the graph. See section 5.10 for more information on relationship
-lists.
-
-PATCH
------
-
-To move towards industry standards and to make our APIs easier to use by
-clients who own specific attributes and do not require AAI to enforce
-concurrency control around them, the PATCH verb has been introduced.
-
-- RFC Algorithm implemented JSON Merge PATCH
- `tools.ietf.org/html/rfc7386 <https://tools.ietf.org/html/rfc7386>`__
-
-- *HTTP Verb = PATCH*
-
-- PATCH requires a Content-Type of "application/merge-patch+json" in
- your HTTP headers.
-
-- PATCH does not support XML
-
-- PATCH does not require a resource version to preform these
- modifications
-
-- Clients should only send what they wish to modify and whose value
- they "own"
-
-Example:
-
-PATCH \ `https://<hostname>:8443/aai/v11/network/generic-vnfs/generic-vnf/cscf0001v <https://aai-int1.test.att.com:8443/aai/v7/network/generic-vnfs/generic-vnf/cscf0001v>`__
-
-    {
-
-      "vnf-id": "cscf0001v", This key needs to be here but you cannot
-modify the key
-
-      "regional-resource-zone": null,
-
-      "ipv4-oam-address": "1.2.3.4"   
-
-}
-
-This payload would result in the generic-vnf with the vnf-id = cscf0001v
-having ipv4-oam-address set to "1.2.3.4" and regional-resource-zone
-having its value removed from the database.
-
-Referential Integrity
----------------------
-
-AAI is primarily a view to the relationships between customers,
-products, services, physical and virtual components, etc. It stores just
-the details it needs to be efficient to its tasks and knows how to get
-more details if needed.
-
-As such, a transaction sent to AAI may be refused if would break
-referential integrity. The referential integrity rules of AAI are still
-evolving as we understand the services and customers that will use us.
-
-AAI uses a graph database on a NoSQL data store. The following are true
-for AAI:
-
-- Some vertices are exposed to the outside world through APIs, others
- are internal to how we store the data (i.e., it may look like one
- resource to our customers but it is expressed as more than one vertex
- in our graph)
-
-- Vertices that are internal to AAI will be deleted when the parent
- vertex is deleted, if deletion of the parent leaves the child vertex
- orphaned
-
-- Vertices that are exposed need to be managed using specific rules for
- each vertex.
-
-- Vertices may have more than just parent/child relationships. One
- example is a vserver, which will be owned by a tenant and used by a
- VNF.
-
-Delete Rules
-------------
-
-The following options are available as actions to be take upon deletion
-of a resource:
-
-- ERROR\_IF\_ANY\_EDGES – If the resource being deleted has any edges
- at all, an error should be returned
-
-- ERROR\_IF\_ANY\_IN\_EDGES – if the resource being deleted has any
- edges that point IN towards it, an error should be returned
-
-- THIS\_NODE\_ONLY – delete the vertex being requested by first
- deleting its edge to other vertices, but do not delete the other
- vertices. Note, the delete will be rejected if the deletion target
- has DEPENDENT children (e.g., tenants that have vservers)
-
-- CASCADE\_TO\_CHILDREN – cascade the delete through vertices who have
- a parentOf relationship to the vertex being deleted, as long as the
- vertex is orphaned by the delete of its parent
-
-- ERROR\_4\_IN\_EDGES\_OR\_CASCADE – error if there are any in edges
- and, if not, cascade to children
-
-Security
---------
-
-All REST APIs must be called using https.
-
-The current release is configured to support BasicAuth. 2-way SSL using
-client certificates should be configured for production deployments or
-as needed.
-
-Headers
--------
-
-The following will be used for logging and interface diagnostic
-purposes.
-
-- X-FromAppId Unique Application ID assigned to the user of these APIs
-
-- X-TransactionId Unique ID that identifies an API request
-
-The X-FromAppId will be assigned to each application by the AAI team.
-The X-TransactionId must be unique to each transaction within the
-context of an X-FromAppId.
-
-OpenECOMP components that call AAI use the Java UUID class to generate
-unique ids for X-TransactionId.
-
-The Accept header should be set to either application/json or
-application/xml.
-
-+-------------------------------+---------------+
-| Client | X-FromAppId |
-+===============================+===============+
-| Policy | Policy |
-+-------------------------------+---------------+
-| Master Service Orchestrator | MSO |
-+-------------------------------+---------------+
-| SDN Controller | SDNC |
-+-------------------------------+---------------+
-| Application Controller | APPC |
-+-------------------------------+---------------+
-
-Response Codes and Error Handling
----------------------------------
-
-HTTP response codes and error codes are described in the API
-documentation.
-
-URLs Sent To and Retrieved From AAI
------------------------------------
-
-AAI receives URLs from clients that point back to that client in order
-to get more details about the data sent to AAI. AAI expects the URLs
-sent by clients (e.g., self links) to be URL encoded (UTF-8) and AAI
-will store them unchanged.
-
-URLs that AAI constructs that point to AAI resources will be returned
-URLEncoded (UTF-8) to clients. This affects URLs in relationship lists
-and search results.
-
-AAI expects space to be %20, and not plus(+).
-
-The Relationship-List
----------------------
-
-The REST interface does not lend itself to creating more than
-parent-child relationships and the backend structure of AAI is a graph.
-A goal of AAI is to do as little coding as possible to introduce a new
-service into the service design and creation environment.
-
-To that end, we've introduced a relationship-list structure. AAI will
-ask its clients to provide certain data in the relationship-list
-structure.
-
-Each relationship has a related-to attribute and a list of key/value
-pairs. The related-to attribute identifies the node type that the
-resource being acted on is to be related to using the data in the
-key/value pairs. AAI will encode a set of rules for each resource type
-to verify that only valid edges are being made. AAI will keep the name
-of the edge itself, the directionality and cardinality, and the edge
-attributes within its own logic.
-
-If an attempt is made to add a relationship to a node that doesn't exist
-(e.g., from a vserver to a vnf, and the vnf doesn't exist), a unique
-message Id (3003) will be returned with a specific error code
-(ERR.5.4.6129). Arguments will tell the client which node type was
-missing (e.g., generic-vnf) and the key data for that node type
-(generic-vnf.vnf-id).
-
-Single relationships can be PUT to the graph in the following way:
-
-.. code-block:: none
-
- https://{serverRoot}/{namespace}/{resource}/relationship-list/relationship
-
-or
-
-.. code-block:: none
-
- https://{hostname}:8443/aai/v11/cloud-infrastructure/pservers/pserver/pserver-123456789-01/p-interfaces/p-interface/p-interface-name-123456789-01/l-interfaces/l-interface/l-interface-name-123456789-01/relationship-list/relationship
-
-with a payload containing the relationship information in XML
-
-.. code-block:: xml
-
- <relationship xmlns="http://org.openecomp.aai.inventory/v11">
- <related-to>logical-link</related-to>
- <relationship-data>
- <relationship-key>logical-link.link-name</relationship-key>
- <relationship-value>logical-link-123456789-01</relationship-value>
- </relationship-data>
- </relationship>
-
-or JSON.
-
-.. code-block:: json
-
- {
- "related-to": "logical-link",
- "relationship-data": [
- {
- "relationship-key": "logical-link.link-name",
- "relationship-value": " logical-link-123456789-01"
- }
- ]
- }
-
-Edges
-=====
-
-The following are the properties used for edge definitions. T is true, F
-is false
-
-- From and To are the node types for the ends of the edges.
-
-- EdgeLabel is the name of the label within the graph.
-
-- Direction shows the direction of the edge.
-
-- Multiplicity shows the multiplicity rule between two nodes. This
- helps govern what AAI does when modifying relationships between edges
- using the relationship REST APIs
-
-- ParentOf indicates whether From is a parent of To.
-
-- UsesResource specifies whether the From node uses resources of the To
- node, to be able to view the data in the context of "what uses what".
-
-- hasDelTarget specifies whether to try to delete the To node when the
- From node is deleted.
-
-- SVC-INFRA (deprecated)
-
-The configuration for different edges supported by the AAI model are
-defined in the DbEdgeRules.java class.
-
-Indexed Attributes
-===================
-
-AAI supports query parameters on its indexed attributes.
-
-As an example, if you wanted to GET a tenant by tenant-name, you would
-do something like
-
-/aai/vX/cloud-infrastructure/cloud-regions/cloud-region/cloud\_owner\_1/cloud-region\_1/tenants/tenant?tenant-name=value
-
-The properties that are indexed are defined in the aai-schema.
-
-Namespaces
-==========
-
-Util Domain
------------
-
-The util domain is where AAI locates utility functions. There is
-currently one utility function, echo, which serves as a ping test that
-authenticated authorized clients can call to ensure there is
-connectivity with AAI.
-
-The URL for the echo utility is:
-
-.. code-block:: none
-
- https://load-balanced-address:8443/aai/util/echo
-
-If the response is unsuccessful, an error will be returned following the
-standard format.
-
-The successful payload returns the X-FromAppId and X-TransactionId sent
-by the client.
-
-Successful XML Response Payload
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-.. code-block:: xml
-
- <Info>
- <responseMessages>
- <responseMessage>
- <messageId>INF0001</messageId>
- <text>Success X-FromAppId=%1 X-TransactionId=%2 (msg=%3) (rc=%4)</text>
- <variables>
- <variable>XYZ</variable>
- <variable>XYZ123</variable>
- <variable>Successful health check:OK</variable>
- <variable>0.0.0002</variable>
- </variables>
- </responseMessage>
- </responseMessages>
- </Info>
-
-Successful JSON Response Payload
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-.. code-block:: json
-
- {"responseMessages": {"responseMessage": [{
- "messageId": "INF0001",
- "text": "Success X-FromAppId=%1 X-TransactionId=%2 (msg=%3) (rc=%4)",
- "variables": {"variable": [
- "XYZ",
- "XYZ123",
- "Successful health check:OK",
- "0.0.0002"
- ]}
- }]}}
-
-Cloud Infrastructure Domain
----------------------------
-
-The Cloud Infrastructure domain (cloud-infrastructure) represents the
-assets managed within a cloud infrastructure site. This includes the
-physical servers, tenants, vservers and cloud-region.
-
-Network Domain
---------------
-
-The network namespace contains virtual and physical network resources as
-well as connection resources such as physical links, logical links, etc.
-
-Business Domain
----------------
-
-The business namespace captures customers, service subscriptions, and
-service instances. This domain is immature and will be evolving as
-service design and creation starts to gel.
-
-Service Design and Creation
----------------------------
-
-The service design and creation namespace captures data we invented
-based on what we thought SDC would eventually provide.
-
-To date, there are only five containers:
-
-1. Service-capabilities capture the pairings of service to resources.
-
-2. Service captures the service model instances and this will be
- deprecated in the future as things mature
-
-3. Models captures model definitions (subgraph definitions using the AAI
- widgets)
-
-4. named-queries capture subgraph definitions that allow different data
- to be retrieved for a given type of asset