8bd3e49038
While Memcached is not stateful, it is very useful to have a stable DNS which will allow us to simplify the Mcrouter resource configuration. Change-Id: I0776875ed24c8c8681fe4efd334a7e911c0ae4ce
62 lines
2.2 KiB
Python
62 lines
2.2 KiB
Python
# Copyright 2020 VEXXHOST, Inc.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
"""Memcached Operator
|
|
|
|
This module maintains the operator for Memcached, it takes care of creating
|
|
the appropriate deployments, Mcrouter, pod monitors and Prometheus rules.
|
|
"""
|
|
|
|
import kopf
|
|
|
|
from openstack_operator import utils
|
|
|
|
|
|
@kopf.on.resume('infrastructure.vexxhost.cloud', 'v1alpha1', 'memcacheds')
|
|
@kopf.on.create('infrastructure.vexxhost.cloud', 'v1alpha1', 'memcacheds')
|
|
def create_or_resume(name, spec, **_):
|
|
"""Create and re-sync any Memcached instances
|
|
|
|
This function is called when a new resource is created but also when we
|
|
start the service up for the first time.
|
|
"""
|
|
|
|
utils.create_or_update('memcached/statefulset.yml.j2',
|
|
name=name, spec=spec)
|
|
utils.create_or_update('memcached/service.yml.j2',
|
|
name=name, spec=spec)
|
|
utils.create_or_update('memcached/mcrouter.yml.j2',
|
|
name=name, spec=spec)
|
|
utils.create_or_update('memcached/podmonitor.yml.j2',
|
|
name=name, spec=spec)
|
|
utils.create_or_update('memcached/prometheusrule.yml.j2',
|
|
name=name, spec=spec)
|
|
|
|
# NOTE(mnaser): We should remove this once all deployments are no longer
|
|
# using Deployment for Memcached.
|
|
utils.ensure_absent('memcached/deployment.yml.j2',
|
|
name=name, spec=spec)
|
|
|
|
|
|
@kopf.on.update('infrastructure.vexxhost.cloud', 'v1alpha1', 'memcacheds')
|
|
def update(name, spec, **_):
|
|
"""Update a Memcached
|
|
|
|
This function updates the deployment for Memcached if there are any
|
|
changes that happen within it.
|
|
"""
|
|
|
|
utils.create_or_update('memcached/statefulset.yml.j2',
|
|
name=name, spec=spec)
|