With oslo-incubator going away, we need to pull those classes into
the Manila code base, along with their unit tests. This presents a
good opportunity to do some long-needed housecleaning. This commit
does the following:
1. Moves the scheduler classes from openstack.common to manila.
2. Adds the unit tests from olso-incubator into Manila.
3. Removes duplication among the combined scheduler modules.
4. Moves scheduler drivers into a sub-module.
5. Normalizes class and module naming throughout the scheduler.
6. Splits some unit test files so they match the names of the
modules that they test.
7. Converts usage of mox & oslotest to mock & unittest.
8. Adds a few unit tests to boost coverage levels.
Implements: blueprint reorganize-manila-scheduler
Change-Id: I7aa237e17787e89a95bb198093ea9bc9498279cd
Share Migration allows a share to be migrated from
one host#pool to another host#pool through the
"manila migrate <share> <host#pool>" command. It first
calls the driver to perform it in an optimized way if
possible. If the driver returns that it did not migrate,
it performs a generic migration.
A new field has been added to "shares" table: task_state,
which tracks migration status.
For driver migration, the method migrate_share in driver
base class should be overridden.
For generic migration, drivers may use new config options
to achieve the necessary configuration:
- migration_mounting_backend_ip: If backend has additional
exports IP for admin network, specify it here.
- migration_data_copy_node_ip: IP of entity performing
migration between backends, such as manila node or
data copy service node. This may not apply for
DHSS = true drivers.
- migration_protocol_mount_command: specify mount command
with protocol and additional parameters. Advisable to restrict
protocols per backend. Defaults to "mount -t <share_proto>".
If additional customization is needed, drivers may override
certain methods:
- _mount_share: return the mount command.
- _umount_share: return the umount command.
- _get_access_rule_for_data_copy: return an access rule with
the IP address which will allow the manila node or data copy node
to mount the share after added permission through
allow-access API command.
Change-Id: I8dde892cb7c0180b2b56d8c7d680dfe2320c2ec7
Implements: blueprint share-migration
This patch implements the scheduler changes for
scheduling the creation of consistency groups,
shares within consistency groups, and cgsnapshots.
The consistency group scheduling filter was added
to allow the filtering of hosts that are not supported
by a specified consistency group. If no CG is specified
on share create then this filter is a no-op. CGs will be
scheduled only to a backend that supports all of its
specified share types.
Partially implements bp manila-consistency-groups
Change-Id: Ia03191085cefb47a17ce99ad3f30ba70412f5802
The scheduler API 'get_pools' was copied from Cinder and has several
problems. The REST endpoint, /scheduler-stats/get_pools, is not a
REST-appropriate name. The API allows filtering but filters are not
currently supported by the Manila scheduler. The API was added as an
extension, not part of the v1 API as it should be. After restarting
the scheduler service, the API doesn't return any data until a share
has been created (Cinder was used as a model for fixing this one).
This patch fixes all of these issues.
Closes-Bug: #1422042
Change-Id: I7e32efb5390fd4b0a62f644ca5a12dcad14d8a9b
This change introduces pool-aware scheduler to address the need for
supporting multiple pools from one storage controller.
Derived from the Cinder Implementation of Pool-aware Scheduler -
https://review.openstack.org/#/c/98715/ and
https://review.openstack.org/#/c/119938
Implements blueprint: dynamic-storage-pools
Change-Id: I3aee5ed1f96f972f7d40fbd981393559587c1a23
The oslo team is recommending everyone to switch to the
non-namespaced versions of libraries. Updating the hacking
rule to include a check to prevent oslo.* import from
creeping back in.
oslo.messaging is the only exception because this package doesn't
currently support non-namespaced imports.
Change-Id: I3987e651bc880c8ffa7c0105df0298679dcd3a43
Change usage of modules that are deprecated in oslo-incubator.
Use the corresponding module from oslo.utils.
A followup patch will sync with oslo-incubator and remove the now
obsolete modules.
Change-Id: I4f949de57e333832dcc7c1e256ce82e2db0144cb
Partial-Bug: #1382189
oslo.i18n provides the i18n function that were provided by
oslo-incubator's gettextutils module
Import _ where needed, oslo.i18n deprecated the builtin method.
Closes-Bug: #1382187
Change-Id: I12aa1c725aa4bb52a9aa46e9c3d2b303839de48b
Make help strings consistent:
* Add missing spaces between words
* Capitalize first word of help
* Add "." at end of string
* Improve wording and capitalization
This follows the oslo.config style guide:
http://docs.openstack.org/developer/oslo.config/styleguide.html
Change-Id: I8243909249423b6b58ccda0d800856f46b0953c5
Fix H405:
H405 multi line docstring summary not separated with an empty line
With this patch, flake8 passes all checks (incl. hacking checks)
except the on-purpose disabled check H904.
Closes-Bug: #1333290
Change-Id: If41259aefc4d6d588da5036f1f25df17b88db04f
Moving file flags.py to manila/common/config.py,
replacing FLAGS by CONF. Rename modules fake_flags to conf_fixture,
test_flags to test_conf, declare_flags to declare_conf,
runtime_flags to runtime_conf like it was done in cinder, nova, glance etc.
Implement bp: use-oslo-conf
Change-Id: I38d869123e5e706d3b06f1844b97ead05e22668f
Clinton Knight