The Oslo team has moved all previously incubated code from the
openstack/oslo-incubator repository into separate library repositories
and released those libraries to the Python Package Index. Many of our
big tent project teams are still using the old, unsupported, incubated
versions of the code. The Oslo team has been working to remove that
incubated code from projects, and the time has come to finish that work.
As one of community-wide goals in Ocata, please see:
https://github.com/openstack/governance/blob/master/goals/ocata/remove-incubated-oslo-code.rst
Note: This commit also fix pep8 violations.
Change-Id: I03288adb94c702d1d63df88ef9ba33a2ff59eaa3
The Manila client needs the following changes to support microversions:
* Maintain backwards compatibility with Kilo. When the client detects
that the server doesn't support microversions it will fall back to
using the v1 API.
* The --os-share-api-version option supports overriding the version.
* If 1.0 is specified as the version the client will load the v1
client and use the server's v1 API.
* The client will send a request for the server's API version and
determine if the client's supported versions and the server's
supported versions overlap. If not the client will display an error
and quit. See diagram 1 below.
* The client supports the @wraps annotation. The annotation is used
with the v2/shell.py commands and any class that inherits from
the Manager class in manilaclient/base.py.
* If an appropriate command version isn't found for commands using
@wraps then the client will display an error and quit.
following commit: ab49d645befd04c84272f0d24e1b604012d191dd.
Diagram 1:
Client:
2.5 2.8
|-------------|
Server1:
2.0 2.5
|-------------|
Client uses version 2.5
Server2:
2.7 2.10
|-------------|
Client uses version 2.8
Server3:
2.9 2.12
|-------------|
Client displays error and quits
Server4:
1.0 (Kilo Server)
|-|
Client detects pre-microversion server and loads v1 client
Example usage of wraps annotation:
* Support 2.0 - 2.4: @api_versions.wraps("2.0", "2.4")
* Support 2.5 - latest: @api_versions.wraps("2.5")
Implements: blueprint manila-client-advanced-microversion-support
Change-Id: I3733fe85424e39566addc070d42609e508259f19
apiclient package from common code has 'exceptions' module,
so, lets reuse its exceptions and leave defined only one
exception that is absent there - NoTokenLookupException.
Partially implements: blueprint use-common-code
Change-Id: I024a90c407e2bd8f25f58935ab8a4241e038f3a8
