Sidecar container to connect to Google CloudSQL via Proxy

multi-container-pod-cloud-sql-proxy.yaml

apiVersion: v1
kind: Pod
metadata:
  name: test-proxy-deploy
spec:
  volumes:
  - name: secret-volume
    secret:
      secretName: cloud_sql_key_secret
  containers:
  - name: test-proxy-pod
    image: ubuntu
    command: ["/bin/sh","-c"]
    args: 
      -  | 
        apt-get update \
        && apt-get -y install curl \
        && apt-get -y install wget \
        && apt-get -y install postgresql-client \
        && wget "https://storage.googleapis.com/cloudsql-proxy/v1.32.0/cloud_sql_proxy.linux.amd64" -O cloud_sql_proxy \
        && chmod +x cloud_sql_proxy \
        && ./cloud_sql_proxy -instances=PROJECT-NAME:REGION:DATABASE-NAME=tcp:0.0.0.0:5432 -ip_address_types=PRIVATE -credential_file=etc/config/cloud_sql_key.json
    imagePullPolicy: IfNotPresent  
    volumeMounts:
    - name: secret-volume
      mountPath: /etc/config
      readOnly: false
  - name: test-connection-pod
    image: ubuntu
    command: ["/bin/sh","-c"]
    args: 
      -  | 
        apt-get update \
        && apt-get -y install curl \
        && apt-get -y install wget \
        && apt-get -y install postgresql-client \
        && sleep 1000000
    imagePullPolicy: IfNotPresent  
    volumeMounts:
    - name: secret-volume
      mountPath: /etc/config
      readOnly: false