chapter4.md

Chapter 4

1. To create the RC via

$ kubectl create -f kubapp-rc.yaml

2. To add and remove labels from the pod (so pod will be removed from the scope of RC) run

$ kubectl label pod <pods name> type=special
$ kubectl label pod <pods name> app=kubapp2 --overwrite
$ kubectl get po

3. To scale your RC up run

$ kubectl scale rc kubapp --replicas=10

4. To delete the RC without all pods, run:

$ kubectl delete rc kubapp --cascade=false

5. To start a new ReplicaSet run

$ kubectl create -f kubapp-rs.yaml

6. To check the information about your ReplicaSet run:

$ kubectl describe rs

7. Example of scheduled job:

apiVersion: batch/v2alpha1
kind: CronJob
spec:
  schedule: "0 3 * * *"
  startingDeadlineSeconds: 15
...