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docs: Add example job that shuts down proxy containers on completion.
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# Copyright 2023 Google LLC. | ||
# | ||
# 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. | ||
|
||
### | ||
# This demonstrates how to configure a batch job so that it shuts down | ||
# the proxy containers when it has finished processing. | ||
# | ||
# The operator will set an environment variable called CSQL_QUIT_URLS | ||
# with a space-separated list of URLs to each proxy container's /quitquitquit | ||
# endpoint. In most cases, your job will only have one proxy container attached, | ||
# so the value of CSQL_QUIT_URLS will be something like | ||
# "http://localhost:9091/quitquitquit" | ||
# | ||
# The main job container should send a POST request each URL when the job | ||
# container process finishes. This will cause the proxy side-car containers | ||
# to shut down. | ||
# | ||
# In Kubernetes 1.28, side-car containers will be properly supported. When | ||
# That happens, we will update the operator to use the built-in side-car | ||
# mechanism for workloads on clusters version 1.28 and higher. | ||
# | ||
# See https://github.com/kubernetes/enhancements/issues/753 | ||
# and https://github.com/GoogleCloudPlatform/cloud-sql-proxy-operator/issues/381 | ||
apiVersion: batch/v1 | ||
kind: Job | ||
metadata: | ||
name: job | ||
labels: | ||
app: busybox | ||
spec: | ||
template: | ||
metadata: | ||
creationTimestamp: null | ||
labels: | ||
app: busybox | ||
spec: | ||
containers: | ||
- name: busybox | ||
# Run your batch job command. | ||
# Then, Iterate through the attached proxy shutdown hooks | ||
# set by the operator in $CSQL_QUIT_URLS. Call each proxy's shutdown | ||
# hook HTTP endpoint. | ||
command: | ||
- sh | ||
- -c | ||
- > | ||
psql --host=$DB_HOST --port=$DB_PORT --username=$DB_USER '--command=select 1' --echo-queries --dbname=$DB_NAME | ||
for url in $CSQL_QUIT_URLS ; do | ||
wget --post-data '' $url | ||
done | ||
image: busybox | ||
imagePullPolicy: IfNotPresent | ||
resources: {} | ||
terminationMessagePath: /dev/termination-log | ||
terminationMessagePolicy: File | ||
restartPolicy: Never | ||
terminationGracePeriodSeconds: 30 | ||
|
||
--- | ||
apiVersion: cloudsql.cloud.google.com/v1 | ||
kind: AuthProxyWorkload | ||
metadata: | ||
name: job-proxy | ||
spec: | ||
instances: | ||
- connectionString: project:region:instancename | ||
hostEnvName: DB_HOST | ||
portEnvName: DB_PORT | ||
workloadSelector: | ||
kind: Job | ||
selector: | ||
matchLabels: | ||
app: busybox |