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The placement API will initially host resource provider
information and then will grow to provide a full placement
service. Eventually it will be fully extracted from Nova.
To facilitate that extraction, this service is being developed
with few ties to existing nova.wsgi structures. Instead it
uses relatively plain WSGI apps that are:
* uses the Routes library with declarative mapping defined in
ROUTE_DECLARATIONS
* basic wsgi apps, with webob and the request class, for each handler
define as functions
* does not use a paste-ini file to compose middleware, instead code
which minimally inspects the oslo config to know how to adjust
middleware (in the initial case choosing an auth_strategy)
Many of these "features" will be demonstrated in commits that
follow this one that enable specific behaviors for resource
providers and their inventories.
In order to ensure that this change can be merged in an atomic
fashion it includes microversion support that was previously in its
own commit.
The microversion_parse library is used in a WSGI middleware
to parse incoming microversion headers and place the
determined value into the WSGI environment at the
'placement.microversion' key. Response headers are adjusted to
add the required outgoing headers as described in:
http://specs.openstack.org/openstack/api-wg/guidelines/microversion_specification.html
If a client requests an invalid microversion, they will receive
a 400 response. If the microversion is of a valid form but not
available, they will received a 406 response. The format of that
response is dependent on the accept header of the request. If it
is JSON, the min and max available microversions are presented.
A request to '/' will return version discovery information.
Thus far nothing else is done with the microversion information.
It is there for when we need it in the future. For now everything
is version 1.0.
The groundwork for using gabbi to test the API is in place in
nova/tests/functional/api/openstack/placement. The gabbi tests
are included in the functional target. To run just the placement
tests it is possible to run 'tox -efunctional placement'.
Change-Id: Icb9c8f7a1fa8a9eac66c2d72f4b7e4efd4e1944f
Partially-Implements: blueprint generic-resource-pools
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Provide a tox -e functional stub, as a place for functional tests to
migrate to. This will allow us to write a zuul test configuration for this
environment.
Part of bp:functional-tests-for-nova
Change-Id: I8a1107beab151f9bf574cfbae1d4dc18400fd74e
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Optimise tests.db.test_migrations and tests.db.test_migration_utils for
concurrency and make opportunistic tests obey walk_style configurations.
Closes-Bug: 1207750
Change-Id: Idb30f144fb67aefc58749897d774103c3c0ec640
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Values for OS_TEST_TIMEOUT, OS_STDOUT_CAPTURE and OS_STDERR_CAPTURE
environment variables are fixed in .testr.conf now. It should be possible
to override them for each tox/runtests.sh call or for the current shell
session without making changes to .testr.conf.
Fixes bug 1182416.
Change-Id: I6c7839fa78b53ac8ea358ce0143a00931da96a9e
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Previously the default test behavior was to capture stdout and stderr.
Make the new default to not capture stdout and stderr then set
.testr.conf to always capture these streams when running tests under
testr.
The motiviation behind this change is that you will want these streams
to be captured when running under testr, but when not running under
testr you may not want to capture them. An example of this would be
running `python -m testtools.run test_name` with a change to test_name
to invoke the python debugger (capturing stdout and stderr interferes
with normal debugger functionality).
Also, only invoke the test timeout by default when running under testr.
This is done for the same reason as above. When running a test under the
debugger the timeout interferes with debugging.
Change-Id: I42cbbdadb2f221ec439e92a6800d14e8436bb77b
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Convert nova from using nosetests to testr for its test runner. Some
tests had to be modified to get them to run properly under testr.
run_tests.sh has been updated to run testr instead of nosetests.
Coverage is collected by running subunit.run under coverage.py when the
coverage environment is selected.
Note that you will need to rebuild your virtualenvs as nose is being
removed from the dependency lists and is being replaced by testr. Tests
will run in different processes once this test is merged so you cannot
use test classes to pass information between tests. Each test should be
a proper independent unit. Additionally the -x and -d flags to
run_tests.sh have been removed as there are currently no decent
approximations for those functions.
Change-Id: I019ca098972ca749b195f59968cf21edd5ba9109
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