Week 4

Phase-1-Practices/Week-4/DoBuiThanhNam/README.md

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+# WEEK 4: Kubernetes
+
+## Practice: Setup Minikube and deploy Wordpress
+
+### Step 1: Prepare
+
+- Install Kubectl
+
+```
+$ sudo apt install curl 
+$ curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
+$ sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl
+```
+
+- Install Minikube
+
+```
+$ curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
+$ sudo install minikube-linux-amd64 /usr/local/bin/minikube
+```
+
+- Start a cluster
+
+  Grant access
+
+  >$ sudo usermod -aG docker $USER && newgrp docker
+
+  Run
+
+  >$ minikube start --driver=docker
+#### Result
+
+![Screenshot_2.png](https://github.com/dobuithanhnam/Viettel-Digital-Talent-2021/blob/main/Week4/pic/Screenshot_2.png)
+
+![Screenshot_3.png](https://github.com/dobuithanhnam/Viettel-Digital-Talent-2021/blob/main/Week4/pic/Screenshot_3.png)
+
+### Step 2: Deploy MariaDB
+
+- Create directory
+
+```
+mkdir minikube_test
+cd minikube_test
+```
+
+- Create files
+
+```
+$ touch mariadb_PV.yaml
+$ touch mariadb_PVC.yaml
+$ touch mariadb_PV.yaml
+```
+
+- Update files
+
+> mariadb_PV.yaml
+```
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: mariadb-pv
+spec:
+  storageClassName: manual
+  capacity:
+    storage: 2Gi
+  accessModes:
+    - ReadWriteOnce
+  hostPath:
+    path: "/mnt/data"
+```
+
+> mariadb_PVC.yaml
+```
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: mariadb-pvc
+spec:
+  storageClassName: manual
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 2Gi
+```
+
+> deploy-mariadb.yaml
+```
+apiVersion: v1
+kind: Service
+metadata:
+  name: mariadb
+  labels:
+    app: wordpress
+spec:
+  ports:
+    - port: 3306
+  selector:
+    app: wordpress
+    tier: mariadbbitnami
+  clusterIP: None
+---  
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: mariadb
+  labels:
+    app: wordpress
+spec:
+  selector:
+    matchLabels:
+      app: wordpress
+      tier: mariadbbitnami
+  strategy:
+    type: Recreate
+  template:
+    metadata:
+      labels:
+        app: wordpress
+        tier: mariadbbitnami
+    spec:
+      initContainers:
+      - name: volume-permissions
+        image: busybox
+        command: ['sh', '-c', 'chmod -R g+rwX /bitnami']
+        volumeMounts:
+        - mountPath: /bitnami
+          name: mariadb-data
+      containers:
+      - image: bitnami/mariadb:latest
+        name: mariadbbitnami
+        env:
+        - name: MARIADB_USER
+          value: bn_wordpress
+        - name: MARIADB_PASSWORD
+          value: bitnami
+        - name: MARIADB_DATABASE
+          value: bitnami_wordpress
+        - name: ALLOW_EMPTY_PASSWORD
+          value: "yes"
+        ports:
+        - containerPort: 3306
+          name: mariadbbitnami
+        volumeMounts:
+        - name: mariadb-data
+          mountPath: /bitnami
+      volumes:
+      - name: mariadb-data
+        persistentVolumeClaim:
+          claimName: mariadb-pvc
+```
+
+- Deploy files
+
+```
+$ kubectl apply -f mariadb_PV.yaml
+$ kubectl apply -f mariadb_PVC.yaml
+$ kubectl apply -f deploy-mariadb.yaml
+```
+
+#### Result
+
+![Screenshot_4.png](https://github.com/dobuithanhnam/Viettel-Digital-Talent-2021/blob/main/Week4/pic/Screenshot_4.png)
+
+### Step 3: Deploy Wordpress
+
+- Create files
+
+```
+$ touch wordpress_PV.yaml
+$ touch wordpress_PVC.yaml
+$ touch deploy-wordpress.yaml
+```
+
+- Update files
+
+> mariadb_PV.yaml
+```
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: wordpress-pv
+spec:
+  storageClassName: manual
+  capacity:
+    storage: 2Gi
+  accessModes:
+    - ReadWriteOnce
+  hostPath:
+    path: "/mnt/data"
+```
+
+> mariadb_PVC.yaml
+```
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: wordpress-pvc
+spec:
+  storageClassName: manual
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 2Gi
+```
+
+> deploy-mariadb.yaml
+```
+apiVersion: v1
+kind: Service
+metadata:
+  name: wordpress
+  labels:
+    app: wordpress
+spec:
+  selector: 
+    app: wordpress
+  type: NodePort
+  ports:
+  - protocol: TCP
+    port: 8080
+    targetPort: 8080
+    nodePort: 30303
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: wordpress
+  labels:
+    app: wordpress
+spec:
+  selector:
+    matchLabels:
+      app: wordpress
+  strategy:
+    type: Recreate
+  template:
+    metadata:
+      labels:
+        app: wordpress
+    spec:
+      containers:
+      - image: bitnami/wordpress:latest
+        name: wordpress
+        env:
+        - name: WORDPRESS_DATABASE_USER
+          value: bn_wordpress
+        - name: WORDPRESS_DATABASE_PASSWORD
+          value: bitnami
+        - name: WORDPRESS_DATABASE_NAME
+          value: bitnami_wordpress
+        ports:
+        - containerPort: 8080
+          name: wordpress
+        volumeMounts:
+        - name: wordpress-data
+          mountPath: /bitnami
+      volumes:
+      - name: wordpress-data
+        persistentVolumeClaim:
+          claimName: wordpress-pvc
+```
+
+- Deploy files
+
+```
+$ kubectl apply -f wordpress_PV.yaml
+$ kubectl apply -f wordpress_PVC.yaml
+$ kubectl apply -f deploy-wordpress.yaml
+```
+
+#### Result
+
+![Screenshot_10.png](https://github.com/dobuithanhnam/Viettel-Digital-Talent-2021/blob/main/Week4/pic/Screenshot_10.png)
+
+### Step 4: Run Minikube & Deploy
+
+- Run Minikube
+
+> $ minikube dashboard
+![Screenshot_7.png](https://github.com/dobuithanhnam/Viettel-Digital-Talent-2021/blob/main/Week4/pic/Screenshot_7.png)
+
+- Get link
+
+> $ minikube service wordpress --url
+![Screenshot_9.png](https://github.com/dobuithanhnam/Viettel-Digital-Talent-2021/blob/main/Week4/pic/Screenshot_9.png)
+
+- Deploy
+
+![Screenshot_8.png](https://github.com/dobuithanhnam/Viettel-Digital-Talent-2021/blob/main/Week4/pic/Screenshot_8.png)