*** Example:1 ***
## vi my-nginx-deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: my-nginx-deployment-pod
labels:
app: mynginx
spec:
replicas: 3
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: my-nginx-deployment-container
image: nginx
ports:
- containerPort: 80
## kubectl create -f my-nginx-deployment.yaml
## kubectl get deployments
## kubectl get pods -l app=nginx -o wide
## kubectl edit deployment my-nginx-deployment-pod
***** change number of replicas to 5.
spec:
progressDeadlineSeconds: 600
replicas: 5
*****************
## kubectl get pods -l app=nginx
## kubectl get replicaset
## kubectl scale deployment my-nginx-deployment-pod --replicas=3
## kubectl get pods -l app=nginx
