first commit

README.md

 # K8s lab 2
 
+## Create Three VM's on Virtual Box
+
+https://docs.google.com/document/d/1g88PdeX3zKvhZjNY-j4qnaepZQYY6stnwuRN3VMICEs/edit?usp=sharing
+
+## Install K8s Cluster
+
+https://www.oueta.com/linux/create-a-debian-11-kubernetes-cluster-with-kubeadm/
+
+## When Cluster is fully installed and working pactice service, application

application/app.yaml

+apiVersion: v1
+kind: Namespace
+metadata:
+  name: horishop
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: horishop-api
+  namespace: horishop
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: horishop-api
+  template:
+    metadata:
+      labels:
+        app: horishop-api
+    spec:
+      containers:
+      - name: horishop-api
+        image: usmanbaloch/horishop_api:latest
+        env:
+        - name: DB_USER
+          value: horishop-user
+        - name: DB_PASSWORD
+          value: horishop123
+        - name: DB_NAME
+          value: horishop
+        - name: DB_HOST
+          value: mysql-service.mysql.svc.cluster.local
+        - name: APP_ENV
+          value: production
+        ports:
+        - containerPort: 5000
+        imagePullPolicy: Always
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: horishop-api
+  name: horishop-api
+  namespace: horishop
+spec:
+  ports:
+  - port: 80
+    protocol: TCP
+    targetPort: 5000
+  selector:
+    app: horishop-api
+  type: LoadBalancer

application/mysql/mysql.yaml

+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: mysql
+spec:
+  selector:
+    matchLabels:
+      app: mysql
+  serviceName: mysql
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: mysql
+    spec:
+      containers:
+        - name: mysql
+          image: mysql:5.7
+          imagePullPolicy: Always
+          ports:
+          - containerPort: 3306
+            name: mysql
+          volumeMounts:
+            - name: mysql-storage
+              mountPath: /var/lib/mysql
+              subPath: mysql
+          env:
+            - name: MYSQL_USER
+              value: horishop-user
+            - name: MYSQL_DATABASE
+              value: horishop
+            - name: MYSQL_PASSWORD
+              value: horishop123
+            - name: MYSQL_ROOT_PASSWORD
+              value: ssi@123
+  volumeClaimTemplates:
+    - metadata:
+        name: mysql-storage
+      spec:
+        accessModes:
+            - ReadWriteOnce
+        storageClassName: standard
+        resources:
+            requests:
+                storage: 1Gi
+---
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: mysql-pv-volume
+  labels:
+    type: local
+spec:
+  storageClassName: standard
+  capacity:
+    storage: 2Gi
+  accessModes:
+    - ReadWriteOnce
+  hostPath:
+    path: "/mnt/data"
+
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: mysql-service
+  namespace: mysql
+spec:
+  selector:
+    app: mysql
+  ports:
+  - protocol: TCP
+    port: 3306
+    targetPort: 3306

application/mysql/table.txt

+CREATE TABLE users (
+id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
+firstname VARCHAR(30) NOT NULL,
+lastname VARCHAR(30) NOT NULL,
+email VARCHAR(50),
+reg_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
+);
+
+insert into users (firstname,lastname,email) values ('muhammad','usman','usmanm@nisum.com');
+

install-metallb/README.md

+# Install metallb on bare-metal cluster
+
+1. kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.13.5/config/manifests/metallb-native.yaml
+
+```
+2. kubectl apply -f metallb.yaml
+
+```
+##Reference URL 
+
+https://metallb.universe.tf/installation/

install-metallb/metallb.yaml

+apiVersion: metallb.io/v1beta1
+kind: IPAddressPool
+metadata:
+  name: first-pool
+  namespace: metallb-system
+spec:
+  addresses:
+  - 192.168.12.4-192.168.12.10
+
+---
+apiVersion: metallb.io/v1beta1
+kind: L2Advertisement
+metadata:
+  name: nisum-pool
+  namespace: metallb-system
+spec:
+  ipAddressPools:
+  - first-pool

k8s-service/README.md

+# Test each service one by one
+
+## For ClusterIP run both pods
+
+### try to access pod1 from pod2 and vice verca.
+
+## For NodePort access appliaction from browser or VM shell.
+
+## For Load Balancer first install metallb then apply the manifest.
+
+### test the appliaction from Load Balacer's IP. 
+

k8s-service/cluster-ip.yaml

+apiVersion: v1
+kind: Pod
+metadata:
+  name: pod1
+  labels:
+    app: pod1
+spec:
+  containers:
+  - name: nginx
+    image: nginx:latest
+    ports:
+      - containerPort: 80
+        name: http-pod1-svc
+
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: pod1-service
+spec:
+  selector:
+    app: pod1
+  ports:
+  - name: pod1-port
+    protocol: TCP
+    port: 80
+    targetPort: http-pod1-svc
+
+---
+apiVersion: v1
+kind: Pod
+metadata:
+  name: pod2
+  labels:
+    app: pod2
+spec:
+  containers:
+  - name: nginx
+    image: nginx:latest
+    ports:
+      - containerPort: 80
+        name: http-pod2-svc
+
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: pod2-service
+spec:
+  selector:
+    app: pod2
+  ports:
+  - name: pod2-port
+    protocol: TCP
+    port: 80
+    targetPort: http-pod2-svc

k8s-service/load-balancer.yaml

+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: lb-ex-deployment
+  labels:
+    name: lb-ex
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      name: lb-ex
+  template:
+    metadata:
+      labels:
+        name: lb-ex
+    spec:
+      containers:
+      - name: nginx
+        image: nginx:latest
+        ports:
+        - containerPort: 80
+
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: lb-ex
+  labels:
+    name: lb-ex
+spec:
+  selector:
+    name: lb-ex
+  ports:
+    - protocol: TCP
+      port: 80
+      name: http
+  type: LoadBalancer

k8s-service/nodeport.yaml

+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: np-ex-deployment
+  labels:
+    name: np-ex
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      name: np-ex
+  template:
+    metadata:
+      labels:
+        name: np-ex
+    spec:
+      containers:
+      - name: nginx
+        image: nginx:latest
+        ports:
+        - containerPort: 80
+
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: np-ex-service
+  labels:
+    name: np-ex
+spec:
+  selector:
+    name: np-ex
+  ports:
+    - protocol: TCP
+      port: 80
+      name: http
+  type: NodePort