Day 7: GitLab Basic CI/CD Pipeline for Deploying to MicroK8s (WordPress/NGINX Example)

1. NGINX Deployment (nginx.yaml)

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-app
  labels:
    app: nginx-app
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nginx-app
  template:
    metadata:
      labels:
        app: nginx-app
    spec:
      containers:
      - name: nginx-container
        image: nginx:1.14.2
        ports:
        - containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: nginx-service
  labels:
    app: nginx-app
spec:
  selector:
    app: nginx-app
  ports:
    - protocol: TCP
      port: 80
      targetPort: 80
  type: ClusterIP
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: nginx-ingress
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  rules:
  - host: nginx.hassandevops.site
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: nginx-service
            port:
              number: 80

---

✅ NGINX GitLab Pipeline (.gitlab-ci.yml)

stages:
  - deploy

deploy-nginx:
  stage: deploy
  image: alpine:latest
  before_script:
    - apk add --no-cache openssh sshpass
  script:
    - sshpass -p "$MICROK8S_PASSWORD" scp -o StrictHostKeyChecking=no kubernetes/nginx.yaml ${MICROK8S_USERNAME}@${MICROK8S_IP_ADDRESS}:/${MICROK8S_USERNAME}/nginx.yaml
    - sshpass -p "$MICROK8S_PASSWORD" ssh -o StrictHostKeyChecking=no ${MICROK8S_USERNAME}@${MICROK8S_IP_ADDRESS} "cd /${MICROK8S_USERNAME} && microk8s.kubectl apply -f nginx.yaml"
  tags:
    - microk8s

---

✅ 2. WordPress Deployment (wordpress.yaml)

apiVersion: apps/v1
kind: Deployment
metadata:
  name: wordpress-app
  labels:
    app: wordpress-app
spec:
  replicas: 1
  selector:
    matchLabels:
      app: wordpress-app
  template:
    metadata:
      labels:
        app: wordpress-app
    spec:
      containers:
      - name: wordpress
        image: wordpress:latest
        ports:
        - containerPort: 80
        env:
        - name: WORDPRESS_DB_HOST
          value: mysql-service
        - name: WORDPRESS_DB_USER
          value: wordpress
        - name: WORDPRESS_DB_PASSWORD
          value: wordpress
---
apiVersion: v1
kind: Service
metadata:
  name: wordpress-service
  labels:
    app: wordpress-app
spec:
  selector:
    app: wordpress-app
  ports:
    - protocol: TCP
      port: 80
      targetPort: 80
  type: ClusterIP
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: wordpress-ingress
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  rules:
  - host: wordpress.hassandevops.site
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: wordpress-service
            port:
              number: 80

---

✅ WordPress GitLab Pipeline (.gitlab-ci.yml)

stages:
  - deploy

deploy-wordpress:
  stage: deploy
  image: alpine:latest
  before_script:
    - apk add --no-cache openssh sshpass
  script:
    - sshpass -p "$MICROK8S_PASSWORD" scp -o StrictHostKeyChecking=no kubernetes/wordpress.yaml ${MICROK8S_USERNAME}@${MICROK8S_IP_ADDRESS}:/${MICROK8S_USERNAME}/wordpress.yaml
    - sshpass -p "$MICROK8S_PASSWORD" ssh -o StrictHostKeyChecking=no ${MICROK8S_USERNAME}@${MICROK8S_IP_ADDRESS} "cd /${MICROK8S_USERNAME} && microk8s.kubectl apply -f wordpress.yaml"
  tags:
    - microk8s

---

✅ Reminder for WordPress Pending Issue:

👉 WordPress might stay "Pending" if storage is not enabled.
💪 Fix:

microk8s enable storage

---

✅ Final URLs:

---

Ready to generate the blog post or want me to add MySQL setup YAML too for WordPress?