How to include script and run it into kubernetes yaml?

I’m using this approach in OpenShift, so it should be applicable in Kubernetes as well.

Try to put your script into a configmap key/value, mount this configmap as a volume and run the script from the volume.

apiVersion: batch/v1
kind: Job
metadata:
  name: hello-world-job
spec:
  parallelism: 1    
  completions: 1    
  template:         
    metadata:
      name: hello-world-job
    spec:
      volumes:
      - name: hello-world-scripts-volume
        configMap:
          name: hello-world-scripts
      containers:
      - name: hello-world-job
        image: alpine
        volumeMounts:
          - mountPath: /hello-world-scripts
            name: hello-world-scripts-volume
        env:
          - name: HOME
            value: /tmp
        command:
        - /bin/sh
        - -c
        - |
          echo "scripts in /hello-world-scripts"
          ls -lh /hello-world-scripts
          echo "copy scripts to /tmp"
          cp /hello-world-scripts/*.sh /tmp
          echo "apply 'chmod +x' to /tmp/*.sh"
          chmod +x /tmp/*.sh
          echo "execute script-one.sh now"
          /tmp/script-one.sh
      restartPolicy: Never
---
apiVersion: v1
items:
- apiVersion: v1
  data:
    script-one.sh: |
      echo "script-one.sh"
      date
      sleep 1
      echo "run /tmp/script-2.sh now"
      /tmp/script-2.sh
    script-2.sh: |
      echo "script-2.sh"
      sleep 1
      date
  kind: ConfigMap
  metadata:
    creationTimestamp: null
    name:  hello-world-scripts
kind: List
metadata: {}

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