In order to support vm_workload_consolidation, workload_balance and
workload_stabilization strategis some instance metrics are required.
This patch is adding support for them.
Implementation is based on a prometheus store populated using sg-core
from ceilometer metrics with Pollster source.
- instance_ram_usage: rely on ceilometer_memory_usage metrics created from
ceilometer memory.usage meter.
- instance_ram_allocated: rely on the memory value provided by the
inventory created from nova and placement APIs.
- instance_cpu_usage: rely on ceilometer_cpu metric created from
ceilometer cpu meter. A max value of 100 is set in the query.
- instance_root_disk_size: rely on the `disk` value provided by the
inventory created from nova and placement APIs.
A new parameterer `instance_uuid_label` has been added to the prometheus
datasource configuration to identify the label used to store the value of the
OpenStack instance uuid for eache instance metric in prometheus. Default
value is `resource`.
Change-Id: I2f2b56aa002014e511a5e48398ef1da43fc4f5e2
This adds a new data source for the Watcher decision engine that
implements the watcher.decision_engine.datasources.DataSourceBase.
related spec was merged at [1].
Implements: blueprint prometheus-datasource
[1] https://review.opendev.org/c/openstack/watcher-specs/+/933300
Change-Id: I6a70c4acc70a864c418cf347f5f6951cb92ec906
This chanage enabled codespell in precommit and
fixes the existing typos.
A followup commit will enable this in tox and ci.
Change-Id: I0a11bcd5a88247a48d3437525fc8a3cb3cdd4e58
This change adds configuration for the pre-commit tool,
follow-up changes will address the remaining issues in a phased
approach to make the reviews simpler.
This is based on the pre-commit config used in nova
with some additional hooks.
Follow-up changes will address the FIXME comments
related to sphinx-lint and codespell, as well as update tox
to enforce these checks in ci.
Change-Id: I87681a19f7fa88366c2b0d310c8b3153aa6a137b
As per the community goal of migrating the policy file
the format from JSON to YAML[1], we need to do two things:
1. Change the default value of '[oslo_policy] policy_file''
config option from 'policy.json' to 'policy.yaml' with
upgrade checks.
2. Deprecate the JSON formatted policy file on the project side
via warning in doc and releasenotes.
Also replace policy.json to policy.yaml ref from doc and tests.
[1]https://governance.openstack.org/tc/goals/selected/wallaby/migrate-policy-format-from-json-to-yaml.html
Change-Id: I207c02ba71fe60635fd3406c9c9364c11f259bae
Add the releasenote for the general purpose decision engine threadpool.
Including config parameters and how contributors can find relevant
documentation.
Implements: blueprint general-purpose-decision-engine-threadpool
Change-Id: I3560069b4e34f13305950559a0f05f7921f7867e
This strategy is used to centralize VMs to as few nodes as possible
by VM migration. User can set a input parameter to decide how to
select the destination node.
Implements: blueprint node-resource-consolidation
Closes-Bug: #1843016
Change-Id: I104c864d532c2092f5dc6f0c8f756ebeae12f09e
Add call_retry method for ModelBuilder classes along with configuration
options. This allows ModelBuilder classes to reattempt any failed calls
to external services such as Nova or Ironic.
Change-Id: Ided697adebed957e5ff13b4c6b5b06c816f81c4a
This is the releasenote for the new grafana datasource it refers to
the documentation on configuring grafana.
Depends-on: Ib12b6a7882703e84a27c301e821c1a034b192508
Change-Id: Icb3939d772f06ad2d66eeba9a59fa8b60822ece0
This patch implements uWSGI support for Watcher API service.
Because mod_wsgi is deprecated, using uwsgi to replace of mod_wsgi.
Most of Openstack projects have finished it.
Closes-Bug: #1834392
Change-Id: I3fad8d30a15aba493fb91da9337c2515ddea5167
Moves the query_retry method into the baseclass and makes the query
retry and timeout options part of the watcher_datasources config group.
This makes the query_retry behavior uniform across all datasources.
A new baseclass method named query_retry_reset is added so datasources
can define operations to perform when recovering from a query error.
Test cases are added to verify the behavior of query_retry.
The query_max_retries and query_timeout config parameters are
deprecated in the gnocchi_client group and will be removed in a future
release.
Change-Id: I33e9dc2d1f5ba8f83fcf1488ff583ca5be5529cc
This patch added Placement to Watcher
We plan to improve the data model and strategies in
the future specs.
Change-Id: I7141459eef66557cd5d525b5887bd2a381cdac3f
Implements: blueprint support-placement-api
The [nova_client]/api_version defaults to 2.56 since
change Idd6ebc94f81ad5d65256c80885f2addc1aaeaae1. There
is compatibility code for that change but if 2.56 is
not available watcher_non_live_migrate_instance will
still fail if a destination host is used.
Since 2.56 has been available since the Queens version of
nova it should be reasonable to require at least that
version of nova is running for using Watcher.
This adds code which enforces the minimum version along
with a release note and "watcher-status upgrade check"
check method.
Note that it's kind of weird for watcher to have a config
option like nova_client.api_version since compute API
microversions are per API request even though novaclient
is constructed with the single configured version. It should
really be something the client (watcher in this case) determines
using version discovery and gracefully enables features if
the required nova API version is available, but that's a bigger
change.
Change-Id: Id34938c7bb8a5ca934d997e52cac3b365414c006
Override the metric map of each datasource as soon as it is created by
the manager. This override comes from a file whose path is provided by
a setting in config file.
Loading at creation time allows the correct datasource be used when
get_backend is called, this allows loading a datasource whose metric
names get updated outside the watcher's codebase.
The function 'load_metric_map' returns empty-dict in any error case.
Also in case the file is empty where safe_load is unable finds any
yaml documents, it will return None. [1]
Some minor refactoring in the test_manager file for readability and
added tests for file load and metric override.
1 - https://pyyaml.org/wiki/PyYAMLDocumentation
Change-Id: I1df16245f4c7dfd34066f3ab0553cd67154faa58
Implements: blueprint file-based-metric-map
Some users may want to create keystoneclient by specifying the
type of endpoint and region name, so we need to supply the option
for user to choose.
Implements: blueprint support-keystoneclient-option
Change-Id: I49b33a69ec99d2a91568ce27ef89dc80b75e7091
Allows to define a global preference for metric datasources with the
ability for strategy specific overrides. In addition, strategies which
do not require datasources have the config options removed this is
done to prevent confusion.
Some documentation that details the inner workings of selecting
datasources is updated.
Imports for some files in watcher/common have been changed to resolve
circular dependencies and now match the overall method to import
configuration.
Addtional datasources will be retrieved by the manager if the
datasource throws an error.
Implements: blueprint global-datasource-preference
Change-Id: I6fc455b288e338c20d2c4cfec5a0c95350bebc36
Ceilometer Datasource has been deprecated since its API has been
deprecated in Ocata cycle. Watcher has supported Ceilometer for some
releases after Ocata to let users migrate to Gnocchi/Monasca datasources.
Since U-release, Ceilometer support will be removed.
Change-Id: I944a5a562ab09a36961eb9b75e9a5144ba0b9ca4
Bare metal cluster data model was introduced in Queens cycle.
Since the model is different from compute data model, we
need add CDM scoper for bare metal cluster data model
Change-Id: Idd041cefb692085d4545252d229ebe8602926b58
Implements: blueprint audit-scoper-for-baremetal-data-model
Add a new config option 'action_execution_rule' which is a dict type.
Its key field is strategy name and the value is 'ALWAYS' or 'ANY'.
'ALWAYS' means the callback function returns True as usual.
'ANY' means the return depends on the result of previous action
execution. The callback returns True if previous action gets failed,
and the engine continues to run the next action. If previous action
executes success, the callback returns False then the next action
will be ignored.
For strategies that aren't in 'action_execution_rule', the callback
always returns True.
If exception is throwing out during the action execution, reverting will
be triggered by taskflow. To continue executing the next action,
we return False instead of throwing an exception.
Change-Id: Ib5afa214d8d097d739aad35d18b3fe5c8e4de8fc
Implements: blueprint enhance-watcher-applier-engine
This patch set adds API microversion support along
with the first API microversion: start/end time for
CONTINUOUS audits.
APIImpact
Implements: blueprint api-microversioning
Depends-On: I6bb838d777b2c7aa799a70485980e5dc87838456
Change-Id: I17309d80b637f02bc5e6d33294472e02add88f86
This commit adds the functionality of watcher-status CLI for performing
upgrade checks as part of the Stein cycle upgrade-checkers goal.
It only includes a sample check which must be replaced by real checks in
future.
Change-Id: Ic3d066af439797d6f705e805334f729b52ce3aac
Story: 2003657
Task: 26164
Add new start_time and end_time fields in the audit table
Partially Implements: blueprint add-start-end-time-for-continuous-audit
Change-Id: I6bb838d777b2c7aa799a70485980e5dc87838456
This patch set adds hostname field to Audit and Action Plan
objects to track services which execute these objects.
Change-Id: I786e419952925c380c969b12cc60f9a1004af96b
Partially-Implements: blueprint support-watcher-ha-active-active-mode
maintain one compute node without having the user's application
been interruptted.
It will firstly migrate all instances from the maintenance node
to one backup node. If not, it will migrate all instances,
relying on nova-schduler.
Change-Id: I29ecb65745d5e6ecab41508e9a91b29b39a3f0a8
Implements:blueprint cluster-maintaining
