Chapter 6: Configuration and Storage Management in Kubernetes

Activity 6: Updating Configurations on the Fly

Solution:

Perform the following steps to complete this activity:

1. We created a ConfigMap named app-config and a secret named token earlier in the chapter. Please include them in your solution. Create a pod definition file that consumes this ConfigMap and the secret:

   apiVersion: v1
   kind: Pod
   metadata:
     name: config-secret-pod
   spec:
     containers:
     - name: content
       image: busybox
       command: [ "sh", "-c"]
       args:
       - while true; do
           echo -en '\n';
           echo Current environment is 'cat /configurations/environment';
           echo Used token is 'cat /secrets/token';
           sleep 10;
         done;
       volumeMounts:
       - name: config-volume
         mountPath: "/configurations"
       - name: secret-volume
         mountPath: "/secrets"
     volumes:
     - name: config-volume
       configMap:
   ...