11

Set Configuration Context

kubectl config use-context dk8s

(Question)

Task

Please complete the following:

• create web1 pods using _web1.yaml_ in the current directory

• restrict traffic to pod _db_ allows traffic from only pods with labels _tier: db and tier: web_

Solution - Click to expand!

#Alias k=kubectl
alias k=kubectl

# Apply the file
k apply -f web1.yaml

# db-ingress-web.yaml

apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: db-ingress-web
spec:
  podSelector:
    matchLabels:
      tier: db
  policyTypes:
  - Ingress
  ingress:
    - from:
      - podSelector:
          matchLabels:
            tier: web
      ports:
        - port: 3306
          protocol: TCP

k apply -f db-ingress-web.yaml