Add support for deploying the webapp in a Kubernetes cluster

webapp/README.md

@@ -10,6 +10,7 @@ A modern web application for generating Kubernetes architecture diagrams from ma
 - **Built-in Examples**: Pre-loaded examples for quick testing
 - **History Management**: Keep track of your diagram generations
 - **Docker Support**: Easy deployment with Docker and Docker Compose
+- **Kubernetes Support**: Easy deployment on Kubernetes clusters
 - **Access Logging**: Apache Combined Log format compatible with GoAccess
 
 ---
@@ -43,6 +44,37 @@ That's it! The application is now running with both frontend and backend service
 docker compose down
 ```
 
+### Using Minikube
+
+#### 1. **Clone the repository**
+
+```bash
+git clone https://github.com/philippemerle/KubeDiagrams.git
+cd KubeDiagrams/webapp
+```
+
+#### 2. **Start the application**
+
+```bash
+kubectl apply -f kubernetes/kube-diagrams-webapp.yaml
+```
+
+#### 3. **Access the application**
+
+It is needed to expose the frontend service.
+
+```bash
+minikube service -n kube-diagrams frontend
+```
+
+That's it! A new tab is opened in your default browser to access the KubeDiagrams WebApp frontend.
+
+#### Stopping the application
+
+```bash
+kubectl delete -f kubernetes/kube-diagrams-webapp.yaml
+```
+
 ---
 
 ## Prerequisites
@@ -121,6 +153,10 @@ webapp/
 │   ├── apache.conf                 # Apache reverse proxy config
 │   └── Dockerfile                  # Frontend Docker image
 │
+├── kubernetes/                     # Kubernetes orchestration
+    └── kube-diagrams-webapp.yaml   # Manifests for deploying KubeDiagrams WebApp
+│
+├── build-and-push-images.sh        # Script to build and push both frontend and backend container images
 └── docker-compose.yml              # Docker Compose orchestration
 ```
 

webapp/kubernetes/kube-diagrams-webapp.yaml

@@ -0,0 +1,137 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: kube-diagrams
+  labels:
+    app.kubernetes.io/name: KubeDiagrams
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: frontend
+  namespace: kube-diagrams
+  labels:
+    app.kubernetes.io/name: KubeDiagrams
+    app.kubernetes.io/component: frontend
+spec:
+  ports:
+    - port: 80
+      name: http
+  selector:
+    app.kubernetes.io/name: KubeDiagrams
+    app.kubernetes.io/component: frontend
+  type: LoadBalancer
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: frontend
+  namespace: kube-diagrams
+  labels:
+    app.kubernetes.io/name: KubeDiagrams
+    app.kubernetes.io/component: frontend
+spec:
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: KubeDiagrams
+      app.kubernetes.io/component: frontend
+  strategy:
+    type: Recreate
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: KubeDiagrams
+        app.kubernetes.io/component: frontend
+    spec:
+      containers:
+      - image: philippemerle/kubediagrams-frontend:latest
+        name: frontend
+        env:
+        - name: BACKEND_URL
+          value: http://backend:5000
+        ports:
+        - containerPort: 80
+          name: http
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: backend
+  namespace: kube-diagrams
+  labels:
+    app.kubernetes.io/name: KubeDiagrams
+    app.kubernetes.io/component: backend
+spec:
+  ports:
+    - port: 5000
+  selector:
+    app.kubernetes.io/name: KubeDiagrams
+    app.kubernetes.io/component: backend
+  type: LoadBalancer
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: backend
+  namespace: kube-diagrams
+  labels:
+    app.kubernetes.io/name: KubeDiagrams
+    app.kubernetes.io/component: backend
+spec:
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: KubeDiagrams
+      app.kubernetes.io/component: backend
+  strategy:
+    type: Recreate
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: KubeDiagrams
+        app.kubernetes.io/component: backend
+    spec:
+      serviceAccountName: backend
+      containers:
+      - image: philippemerle/kubediagrams-backend:latest
+        name: backend
+        ports:
+        - containerPort: 5000
+          name: backend
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: backend
+  namespace: kube-diagrams
+  labels:
+    app.kubernetes.io/name: KubeDiagrams
+    app.kubernetes.io/component: backend
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: kube-diagrams
+  labels:
+    app.kubernetes.io/name: KubeDiagrams
+    app.kubernetes.io/component: backend
+subjects:
+- apiGroup: ""
+  kind: ServiceAccount
+  name: backend
+  namespace: kube-diagrams
+roleRef:
+  kind: ClusterRole
+  name: kube-diagrams
+  apiGroup: rbac.authorization.k8s.io
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: kube-diagrams
+  labels:
+    app.kubernetes.io/name: KubeDiagrams
+    app.kubernetes.io/component: backend
+rules:
+- apiGroups: ["*"]
+  resources: ["*"]
+  verbs: ["*"]