Execute shell script file using kubernetes as a cron job

Question

When executing yaml file as a cronjob i am getting the following error:

container_linux.go:247: starting container process caused "exec: \"/home/ubuntu/exam.sh\": stat /home/ubuntu/exam.sh: no such file or directory"

job2.yaml file apiVersion: batch/v1beta1 kind: CronJob metadata:   name: ghost   labels:
    role: blog spec:   schedule: "*/1 * * * *"   jobTemplate:
    spec:
      template:
        spec:
          containers:
          - name: ghost
            image: ghost:0.11-alpine
            command: ["/home/ubuntu/exam.sh"]
          restartPolicy: OnFailure

Can any one help me out of this.

Answer 1

use /bin/sh instead of /bin/bash

This solved it for a lot of people. Have a look at this GitHub thread.

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Answer 2

With this kind of errors, you should check if the file was really executed by a cronjob, if it exists and is executable. Please check it.

Alternatively, you can run it from kubectl run command:

kubectl run ghost --schedule="*/1 * * * *" --restart=OnFailure --image=ghost:0.11-alpine -- /bin/sh -c "your check script content"

Answer 3

Try updating your docker and check if the error still exists

Answer 4

I had the same error on windows. Resolved this by running docker as administrator. I don't the how and why behind it though.