randomizer_deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: randomizer
  labels:
    app: randomizer
spec:
  selector:
    matchLabels:
      app: randomizer
  template:
    metadata:
      labels:
        app: randomizer
    spec:
      # This section describes the containers that make up the deployment
      containers:
        - name: randomizer
          # CHANGE [PROJECT_ID] to the project where your Cloud SQL instance lives
          image: gcr.io/[PROJECT_ID]/randomizer
          # Set env variables used for database connection
          env:
            - name: DB_USER
              valueFrom:
                secretKeyRef:
                  name: cloudsql-db-credentials
                  key: username
            - name: DB_PASS
              valueFrom:
                secretKeyRef:
                  name: cloudsql-db-credentials
                  key: password
            - name: DB_NAME
              valueFrom:
                secretKeyRef:
                  name: cloudsql-db-credentials
                  key: dbname
        # Change <INSTANCE_CONNECTION_NAME> here to include your GCP
        # project, the region of your Cloud SQL instance and the name
        # of your Cloud SQL instance. The format is $PROJECT:$REGION:$INSTANCE
        # Note too, that the tcp port will be different if you're not doing
        # MySQL. If you're using Postgres for example, it should be 5432
        - name: cloudsql-proxy
          image: gcr.io/cloudsql-docker/gce-proxy:1.23.0
          command: ["/cloud_sql_proxy",
                    "-instances=[INSTANCE_CONNECTION_NAME]=tcp:3306",
                    "-credential_file=/secrets/cloudsql/sql_credentials.json"]
          volumeMounts:
            - name: my-secrets-volume
              mountPath: /secrets/cloudsql
              readOnly: true
      volumes:
        - name: my-secrets-volume
          secret:
            secretName: cloudsql-instance-credentials