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Add REST API support for get me a network

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This adds the 2.37 microversion to the REST API for automatically
allocating a network, i.e. get me a network.

The majority of the changes to the REST API concern request
validation. 'networks' is now required in the server POST body
after this microversion. The 'auto' or 'none' special network
uuid values are used, but if specified, can not be specified
with any other requested network values.

The other special case that is checked is when the minimum
compute service version is not new enough to support this change,
i.e. a Mitaka compute will not have the network API code that
knows how to deal with the special auto/none network IDs. Because
the REST API is checking the service version, the service caches
the service version after the first check. Once all computes are
updated to Newton then a restart of the nova-api service(s) will
be required to flush the cache. A release note is provided for
this situation.

The api-ref docs are also updated for this microversion including
an example API sample request.

The matching Tempest change to test this is here:

I89b18709e0cfbbcbf9be96a91a13a1356cdf85b0

The matching python-novaclient change is here:

I6636ddcd3be7bf393d2d69cc6c1ba5c7d65ff674

Implements blueprint get-me-a-network

Change-Id: I89b18709e0cfbbcbf9be96a91a13a1356cdf85b0
This commit is contained in:
Matt Riedemann
2016-07-26 16:39:11 -04:00
parent 15e536518a
commit d727795d66
16 changed files with 346 additions and 7 deletions
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nova/api/openstack/api_version_request.py
+4 -1
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@@ -90,6 +90,9 @@ REST_API_VERSION_HISTORY = """REST API Version History:
* 2.35 - Adds keypairs pagination support.
* 2.36 - Deprecates all the API which proxy to another service and fping
API.
* 2.37 - Adds support for auto-allocating networking, otherwise known as
"Get me a Network". Also enforces server.networks.uuid to be in
UUID format.
"""
# The minimum and maximum versions of the API supported
@@ -98,7 +101,7 @@ REST_API_VERSION_HISTORY = """REST API Version History:
# Note(cyeoh): This only applies for the v2.1 API once microversions
# support is fully merged. It does not affect the V2 API.
_MIN_API_VERSION = "2.1"
_MAX_API_VERSION = "2.36"
_MAX_API_VERSION = "2.37"
DEFAULT_API_VERSION = _MIN_API_VERSION
# All the proxy APIs which related network, images and baremetal