I have a deployment with 2 containers inside a single pod (container-test2 and cloudsql-proxy).

container-test2 runs a docker image which passes ["my_app", "arg1", "arg2"] as CMD. I would like to run several instances of this container with different argument combinations. I would also like to run them in separate pods so that I can distribute them across nodes. I am not entirely sure how to do this.

I can successfully run the two containers but I don't know how to make container-test2 replicate with different arguments and make each container start inside an individual pod.

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: test
spec:
  replicas: 1
  template:
    metadata:
      labels:
        app: test
    spec:
      containers:
        - image: gcr.io/testing-11111/testology:latest
          name: container-test2
          command: ["my_app", "arg1", "arg2"]
          env:
            - name: DB_HOST
              # Connect to the SQL proxy over the local network on a fixed port.
              # Change the [PORT] to the port number used by your database
              # (e.g. 3306).
              value: 127.0.0.1:5432
            # These secrets are required to start the pod.
            # [START cloudsql_secrets]
            - name: DB_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: cloudsql-db-credentials
                  key: password
            - name: DB_USER
              valueFrom:
                secretKeyRef:
                  name: cloudsql-db-credentials
                  key: username
            # [END cloudsql_secrets]
          resources:
            requests:
              #memory: "64Mi"
              cpu: 0.1
            limits:
              memory: "375Mi"
              cpu: 0.15


        # 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
        # Insert the port number used by your database.
        # [START proxy_container]
        - image: gcr.io/cloudsql-docker/gce-proxy:1.09
          name: cloudsql-proxy
          command: ["/cloud_sql_proxy", "--dir=/cloudsql",
                    "-instances=testing-11111:europe-west2:testology=tcp:5432",
                    "-credential_file=/secrets/cloudsql/credentials.json"]
          volumeMounts:
            - name: cloudsql-instance-credentials
              mountPath: /secrets/cloudsql
              readOnly: true
            - name: ssl-certs
              mountPath: /etc/ssl/certs
            - name: cloudsql
              mountPath: /cloudsql
        # [END proxy_container]
          resources:
            requests:
              #memory: "64Mi"
              cpu: 0.1
            limits:
              memory: "375Mi"
              cpu: 0.15

      # [START volumes]
      volumes:
        - name: cloudsql-instance-credentials
          secret:
            secretName: cloudsql-instance-credentials
        - name: ssl-certs
          hostPath:
            path: /etc/ssl/certs
        - name: cloudsql
          emptyDir:
      # [END volumes]

EDIT: Solution

I solved it by creating multiple copies of the deployment config into directory "deployments", amending the names and command and then running:

kubectl create -f deployments/