Kubernetes Ubuntu 24.04 Wiki.JS a WordPress.

sudo apt udpate
sudo apt upgrade

Nainštalujte K3s

curl -sfL https://get.k3s.io | sh -

Môžete skontrolovať stav nodov

sudo kubectl get nodes

Výstup:

NAME   STATUS   ROLES                  AGE   VERSION
ivan   Ready    control-plane,master   5s    v1.33.5+k3s1

Konfigurácia kubectl (aby si ho mohol používať bez sudo):

mkdir -p $HOME/.kube
sudo cp /etc/rancher/k3s/k3s.yaml $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config

Nasadenie Wiki.js

Vytvoríme yaml

nano wikijs.yaml

Skpírujeme do neho

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: wikijs-data
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 5Gi
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: wikijs
spec:
  replicas: 1
  selector:
    matchLabels:
      app: wikijs
  template:
    metadata:
      labels:
        app: wikijs
    spec:
      containers:
      - name: wikijs
        image: requarks/wiki:latest
        env:
        - name: DB_TYPE
          value: "sqlite"
        - name: DB_FILE
          value: "/data/database.sqlite"
        ports:
        - containerPort: 3000
        volumeMounts:
        - name: data
          mountPath: /data
      volumes:
      - name: data
        persistentVolumeClaim:
          claimName: wikijs-data
---
apiVersion: v1
kind: Service
metadata:
  name: wikijs-service
spec:
  type: NodePort
  selector:
    app: wikijs
  ports:
    - protocol: TCP
      port: 80
      targetPort: 3000
      nodePort: 30080

Následne uložíme

Nasadíme Wiki.js

sudo kubectl apply -f wikijs.yaml
sudo kubectl get pods
sudo kubectl get svc

Teraz otvorte webpvý prehliadač a zadajte IP adresu daného servera v tvare:

http://X.X.X.X:30080

Nasadenie WordPress

Vytvoríme yaml

nano wordpress.yaml

Skopírujeme do neho:

# PersistentVolumeClaim pre MariaDB
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: mariadb-pvc
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 5Gi
---
# PersistentVolumeClaim pre WordPress
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: wordpress-pvc
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 5Gi
---
# MariaDB Deployment
apiVersion: apps/v1
kind: Deployment
metadata:
  name: mariadb
spec:
  replicas: 1
  selector:
    matchLabels:
      app: mariadb
  template:
    metadata:
      labels:
        app: mariadb
    spec:
      containers:
      - name: mariadb
        image: mariadb:10.11
        env:
        - name: MYSQL_ROOT_PASSWORD
          value: "rootpass"
        - name: MYSQL_DATABASE
          value: "wordpress"
        - name: MYSQL_USER
          value: "wpuser"
        - name: MYSQL_PASSWORD
          value: "wppass"
        volumeMounts:
        - name: mariadb-storage
          mountPath: /var/lib/mysql
      volumes:
      - name: mariadb-storage
        persistentVolumeClaim:
          claimName: mariadb-pvc
---
apiVersion: v1
kind: Service
metadata:
  name: mariadb
spec:
  selector:
    app: mariadb
  ports:
    - protocol: TCP
      port: 3306
---
# WordPress Deployment
apiVersion: apps/v1
kind: Deployment
metadata:
  name: wordpress
spec:
  replicas: 1
  selector:
    matchLabels:
      app: wordpress
  template:
    metadata:
      labels:
        app: wordpress
    spec:
      containers:
      - name: wordpress
        image: wordpress:6.6-php8.2-apache
        env:
        - name: WORDPRESS_DB_HOST
          value: mariadb
        - name: WORDPRESS_DB_NAME
          value: wordpress
        - name: WORDPRESS_DB_USER
          value: wpuser
        - name: WORDPRESS_DB_PASSWORD
          value: wppass
        ports:
        - containerPort: 80
        volumeMounts:
        - name: wordpress-storage
          mountPath: /var/www/html
      volumes:
      - name: wordpress-storage
        persistentVolumeClaim:
          claimName: wordpress-pvc
---
apiVersion: v1
kind: Service
metadata:
  name: wordpress-service
spec:
  type: NodePort
  selector:
    app: wordpress
  ports:
    - protocol: TCP
      port: 80
      targetPort: 80
      nodePort: 30081

Spustenie WordPress

kubectl apply -f wordpress.yaml
kubectl get pods
kubectl get svc

Zadáme IP adresu s portom v tvare:

http://X.X.X.X:30081