diff --git a/Phase-1-Practices/Week-4/LeMinhThu/minikube.md b/Phase-1-Practices/Week-4/LeMinhThu/minikube.md new file mode 100644 index 0000000..7d8ef1b --- /dev/null +++ b/Phase-1-Practices/Week-4/LeMinhThu/minikube.md @@ -0,0 +1,453 @@ +# Kubernetes + +## Prepare + +1. Install curl + +``` +sudo apt install curl +``` + +2. Install kubectl + +* Download the latest release + +``` +curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl" +``` + +* Install kubectl + +``` +sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl +``` + +3. Install minikube + +* Dowload latest release + +``` +curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 +``` + +* Install minikube + +``` +sudo install minikube-linux-amd64 /usr/local/bin/minikube +``` + +4. Start a cluster using docker driver + +``` +minikube start --driver=docker +``` + +![image](https://user-images.githubusercontent.com/83031380/121802402-4a499980-cc66-11eb-8426-e7eb3792707d.png) + +5. Check kubectl version + +``` +kubectl version +``` + +![image](https://user-images.githubusercontent.com/83031380/120016397-c14c2480-c00e-11eb-9a19-b46af5a5c41d.png) + +## Deploy wordpress + +>Create folder: +``` +mkdir minikube_test +cd minikube_test +``` + +### Deploy using yaml file + +1. Create file to deploy MariaDB + +* Create PersistentVolumes + +``` +touch MariaDB_PV.yaml +``` + +> MariaDB_PV.yaml + +``` +apiVersion: v1 +kind: PersistentVolume +metadata: + name: mariadb-pv +spec: + storageClassName: manual + capacity: + storage: 3Gi + accessModes: + - ReadWriteOnce + hostPath: + path: "/mnt/data" +``` + +* Create PersistentVolumeClaim + +``` +touch MariaDB_PVC.yaml +``` + +> MariaDB_PVC.yaml + +``` +apiVersion: v1 +kind: PersistentVolumeClaim +metadata: + name: mariadb-pvc +spec: + storageClassName: manual + accessModes: + - ReadWriteOnce + resources: + requests: + storage: 3Gi +``` + +* Create MariaDB_deployment.yaml + +``` +touch MariaDB_deployment.yaml +``` + +> MariaDB_deployment.yaml + +``` +--- +apiVersion: v1 +kind: Service +metadata: + name: mariadb + labels: + app: mariadb +spec: + ports: + - port: 3306 + selector: + app: mariadb + clusterIP: None +--- +apiVersion: apps/v1 +kind: Deployment +metadata: + name: mariadb + labels: + app: mariadb +spec: + selector: + matchLabels: + app: mariadb + strategy: + type: Recreate + template: + metadata: + labels: + app: mariadb + 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: mariadb-bitnami + 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: mariadb-bitnami + volumeMounts: + - name: mariadb-data + mountPath: /bitnami + volumes: + - name: mariadb-data + persistentVolumeClaim: + claimName: mariadb-pvc +--- +``` + +2. Create file to deploy Wordpress + +* Create PersistentVolume + +``` +touch wordpress_pv.yaml +``` + +> wordpress_pv.yaml + +``` +apiVersion: v1 +kind: PersistentVolume +metadata: + name: wordpress-pv +spec: + storageClassName: manual + capacity: + storage: 3Gi + accessModes: + - ReadWriteOnce + hostPath: + path: "/mnt/data" +``` + +* Create PersistentVolumeClaim + +``` +touch wordpress_pvc.yaml +``` + +> wordpress_pvc.yaml + +``` +apiVersion: v1 +kind: PersistentVolumeClaim +metadata: + name: wordpress-pvc +spec: + storageClassName: manual + accessModes: + - ReadWriteOnce + resources: + requests: + storage: 2Gi +``` + +* Create wordpress_deployment.yaml + +``` +touch wordpress_deployment.yaml +``` + +>wordpress_deployment.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: 31126 +--- +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 +``` + +3. Run file to deploy MariaDB and Wordpress + +``` +kubectl apply -f MariaDB_PV.yaml +kubectl apply -f MariaDB_PVC.yaml +kubectl apply -f MariaDB_deployment.yaml +``` + +``` +kubectl apply -f wordpress_pv.yaml +kubectl apply -f wordpress_pvc.yaml +kubectl apply -f wordpress_deployment.yaml +``` + +![image](https://user-images.githubusercontent.com/83031380/120113755-271ee480-c1a6-11eb-877f-1f96792d941d.png) + +* Describe pod + +``` +kubectl describe pod mariadb +``` + +``` +kubectl describe pod wordpress +``` + +![image](https://user-images.githubusercontent.com/83031380/120113845-9268b680-c1a6-11eb-9896-a42a13b5f47c.png) + +![image](https://user-images.githubusercontent.com/83031380/120113879-be843780-c1a6-11eb-97cd-96974dba937e.png) + +* List pod/service + +``` +kubectl get pods +``` + +``` +kubectl get svc +``` + +![image](https://user-images.githubusercontent.com/83031380/120113961-1b7fed80-c1a7-11eb-809c-cd9117bff88e.png) + +* Describe service + +``` +kubectl describe svc mariadb +``` + +``` +kubectl describe svc wordpress +``` +![image](https://user-images.githubusercontent.com/83031380/120114064-93e6ae80-c1a7-11eb-9c6e-4e72a4a9794c.png) + + +* Open dashboard + +``` +minikube dashboard +``` +![image](https://user-images.githubusercontent.com/83031380/120114154-0bb4d900-c1a8-11eb-8aa9-c95f14ad7409.png) + +* Get url of wordpress + +``` +kubectl service wordpress +``` + +![image](https://user-images.githubusercontent.com/83031380/120114248-7c5bf580-c1a8-11eb-8440-d9a07b796104.png) + +![image](https://user-images.githubusercontent.com/83031380/120114160-12dbe700-c1a8-11eb-91d6-00c700cd2eb6.png) + + +### Deploy using helm + + + * Install snapd + + ``` + sudo apt install snapd + ``` + + * Install helm + + ``` + sudo snap install helm --classic + ``` + + * minikube start + + ``` + minikube start + ``` + + ![image](https://user-images.githubusercontent.com/83031380/120019358-8f3cc180-c012-11eb-81c2-e136109008fb.png) + +* add Bitnami repository: + +``` +helm repo add bitnami https://charts.bitnami.com/bitnami +``` + +* list repository: + +``` +helm repo list +``` + +![image](https://user-images.githubusercontent.com/83031380/120020377-ceb7dd80-c013-11eb-968b-f3876a732674.png) + +* deploy wordpress + +``` +helm install my-release \ + --set wordpressUsername=admin \ + --set wordpressPassword=password \ + --set mariadb.auth.rootPassword=secretpassword \ + bitnami/wordpress +``` + +* List all pods in the namespace + +``` +kubectl get pods +``` + +![image](https://user-images.githubusercontent.com/83031380/120020922-9664cf00-c014-11eb-8447-c25204cce37e.png) + +* List all services in the namespace + +``` +kubectl get svc +``` +![image](https://user-images.githubusercontent.com/83031380/120022218-4dae1580-c016-11eb-8137-f83defe5fea7.png) + +* List deployment + +``` +kubectl get deployment +``` +![image](https://user-images.githubusercontent.com/83031380/120022390-8c43d000-c016-11eb-83d7-4c1cd9d8514e.png) + +* get url of wordpress + +``` +minikube service my-release-wordpress +``` + +![image](https://user-images.githubusercontent.com/83031380/120024643-b5b22b00-c019-11eb-80bc-cfa560f9852c.png) + +![image](https://user-images.githubusercontent.com/83031380/120024828-f611a900-c019-11eb-8e72-f1067edf9274.png) + +## References + + + + + +