README.md

Multi Container Pods

Multi Container Pods
Tips and Tricks

For simulated Practice problems visit KillerCoda.

1. create a namespace nano.

   Solution

   k create ns nano

2. create a pod named worker in nano namespace. create two containers in it one with nginx image, and another with busybox image. In container with busybox image run bash command sleep 3600.

   Solution

   apiVersion: v1
   kind: Pod
   metadata:
     creationTimestamp: null
     labels:
       run: worker
     name: worker
   spec:
     containers:
     - image: nginx
       name: nginx
     - image: busybox
       name: busybox
       command: ["sh","-c","sleep 3600"]
     dnsPolicy: ClusterFirst
     restartPolicy: Always
   status: {}

3. From the running worker pod in nano namespace, save env variables of busybox container to busybox.txt file.

   Solution

   # check for the running pod
   k get po -n nano
   
   # list the env of busybox container & save it to a file
   k exec -ti worker -n nano -c busybox -- env
   
   # or
   k exec -ti worker -n nano -c busybox -- printenv > busybox.txt