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Introduction to Busybox Pod

Let's learn about a pod called busybox that we will use a lot in this course for various purposes.

Busybox Docker Image

  • BusyBox image is a Linux-based image containing many handy utilities.
  • The BusyBox container image is incredibly lightweight.
  • The image is less than 3 MB in size.
  • Busybox image doesn't have a bash shell. It has a shell at /bin/sh.

Create Busybox Pod

apiVersion: v1
kind: Pod
  name: busybox
  - name: busybox
    image: busybox
      - /bin/sh
      - -c
      - sleep 3600
  restartPolicy: Never
# Create busybox pod
kubectl apply -f busybox.yml
  • The busybox container has an entrypoint /bin/sh and it has no running tasks. The process comes to an end.
  • In order to keep the container alive we are making it sleep for 3600 seconds.

You can also use the following imperative command to create a busybox pod:

kubectl run busybox --image=busybox --restart=Never -- /bin/sh -c "sleep 3600"

Clean Up

Let's delete the busybox Pod.

kubectl delete -f busybox.yml