Declarative updates in action¶

We are going to find the client-pod.yaml file:

apiVersion: v1
kind: Pod
metadata:
  name: client-pod
  labels:
    component: web
spec:
  containers:
    - name: client
      image: deiveris/multi-client
      ports:
        - containerPort: 3000

And modify it:

apiVersion: v1
kind: Pod
metadata:
  name: client-pod
  labels:
    component: web
spec:
  containers:
    - name: client
      image: deiveris/multi-worker
      ports:
        - containerPort: 3000

Then run the command:

$ kubectl apply -f client-pod.yaml 
pod/client-pod configured

We can run the command to verify the change

kubectl get pods

We can use the command to get detailed info:

kubectl describe <object type> <object name>