From cd09e44a0befbc4c10e40658bab168ed3e00f15f Mon Sep 17 00:00:00 2001 From: Emeline Nerot Date: Tue, 15 Apr 2025 20:11:51 +0000 Subject: [PATCH] Add --- Dockerfile | 20 ++ README.md | 38 +++ deployment.yaml | 21 ++ namespace.yaml | 4 + package-lock.json | 751 ++++++++++++++++++++++++++++++++++++++++++++++ package.json | 12 + prepare-app.sh | 10 + server.js | 33 ++ service.yaml | 13 + start-app.sh | 14 + statefulset.yaml | 33 ++ stop-app.sh | 13 + 12 files changed, 962 insertions(+) create mode 100644 Dockerfile create mode 100644 README.md create mode 100644 deployment.yaml create mode 100644 namespace.yaml create mode 100644 package-lock.json create mode 100644 package.json create mode 100644 prepare-app.sh create mode 100644 server.js create mode 100644 service.yaml create mode 100644 start-app.sh create mode 100644 statefulset.yaml create mode 100644 stop-app.sh diff --git a/Dockerfile b/Dockerfile new file mode 100644 index 0000000..8a50895 --- /dev/null +++ b/Dockerfile @@ -0,0 +1,20 @@ +# Use the official Node.js 16 image as the base image +FROM node:16 + +# Set the working directory +WORKDIR /usr/src/app + +# Copy the package.json and package-lock.json files +COPY package*.json ./ + +# Install dependencies +RUN npm install + +# Copy the rest of the application code +COPY . . + +# Expose the port the app runs on +EXPOSE 8080 + +# Command to run the application +CMD ["node", "server.js"] diff --git a/README.md b/README.md new file mode 100644 index 0000000..2b2ae9c --- /dev/null +++ b/README.md @@ -0,0 +1,38 @@ +# Web Application Deployment to Kubernetes + +## Description + +This project deploys a simple web application to Kubernetes using a Deployment, StatefulSet, Service, PersistentVolume, and PersistentVolumeClaim. The application is a basic Node.js server that serves a web page. + +## Containers Used + +- **web-app-container**: A container running a Node.js application. + +## Kubernetes Objects + +- **Namespace**: `my-namespace` +- **Deployment**: `web-app-deployment` +- **StatefulSet**: `web-app-statefulset` +- **Service**: `web-app-service` +- **PersistentVolume**: `pv-volume` +- **PersistentVolumeClaim**: `pvc-claim` + +## Virtual Networks and Named Volumes + +- The application uses a PersistentVolume and PersistentVolumeClaim to store data. +- The Service exposes the application on port 80. + +## Container Configuration + +- The Dockerfile builds a Node.js application and exposes port 8080. +- The Deployment and StatefulSet use the image `my-web-app:latest`. + +## Instructions + +### Prepare the Application + +1. Run the `prepare-app.sh` script to build the Docker image and create the namespace and persistent volumes. + +```bash +./prepare-app.sh + diff --git a/deployment.yaml b/deployment.yaml new file mode 100644 index 0000000..b7e2d5b --- /dev/null +++ b/deployment.yaml @@ -0,0 +1,21 @@ +apiVersion: apps/v1 +kind: Deployment +metadata: + name: web-app-deployment + namespace: my-namespace +spec: + replicas: 3 + selector: + matchLabels: + app: web-app + template: + metadata: + labels: + app: web-app + spec: + containers: + - name: web-app-container + image: elineen/todo-app:latest + ports: + - containerPort: 8080 + diff --git a/namespace.yaml b/namespace.yaml new file mode 100644 index 0000000..4cb279b --- /dev/null +++ b/namespace.yaml @@ -0,0 +1,4 @@ +apiVersion: v1 +kind: Namespace +metadata: + name: my-namespace diff --git a/package-lock.json b/package-lock.json new file mode 100644 index 0000000..0a3e98e --- /dev/null +++ b/package-lock.json @@ -0,0 +1,751 @@ +{ + "name": "todo-app", + 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namespace my-namespace + +# Apply the PersistentVolume and PersistentVolumeClaim +kubectl apply -f statefulset.yaml diff --git a/server.js b/server.js new file mode 100644 index 0000000..678142a --- /dev/null +++ b/server.js @@ -0,0 +1,33 @@ +const express = require('express'); +const app = express(); +const port = 8080; + +app.use(express.json()); +app.use(express.static('public')); + +let todos = []; + +app.get('/api/todos', (req, res) => { + res.json(todos); +}); + +app.post('/api/todos', (req, res) => { + const newTodo = { + id: todos.length + 1, + text: req.body.text, + completed: false + }; + todos.push(newTodo); + res.status(201).json(newTodo); +}); + +app.delete('/api/todos/:id', (req, res) => { + const id = parseInt(req.params.id, 10); + todos = todos.filter(todo => todo.id !== id); + res.status(204).send(); +}); + +app.listen(port, () => { + console.log(`Server is running on http://localhost:${port}`); +}); + diff --git a/service.yaml b/service.yaml new file mode 100644 index 0000000..fc8a389 --- /dev/null +++ b/service.yaml @@ -0,0 +1,13 @@ +apiVersion: v1 +kind: Service +metadata: + name: web-app-service + namespace: my-namespace +spec: + selector: + app: web-app + ports: + - protocol: TCP + port: 80 + targetPort: 8080 + type: LoadBalancer diff --git a/start-app.sh b/start-app.sh new file mode 100644 index 0000000..889241d --- /dev/null +++ b/start-app.sh @@ -0,0 +1,14 @@ +#!/bin/bash + +# Create the Namespace +minikube kubectl -- create namespace my-namespace + +# Apply the Deployment +minikube kubectl -- apply -f deployment.yaml + +# Apply the Service +minikube kubectl -- apply -f service.yaml + +# Apply the StatefulSet +minikube kubectl -- apply -f statefulset.yaml + diff --git a/statefulset.yaml b/statefulset.yaml new file mode 100644 index 0000000..1fc01a2 --- /dev/null +++ b/statefulset.yaml @@ -0,0 +1,33 @@ +apiVersion: apps/v1 +kind: StatefulSet +metadata: + name: web-app-statefulset + namespace: my-namespace +spec: + serviceName: "web-app-service" + replicas: 1 + selector: + matchLabels: + app: web-app + template: + metadata: + labels: + app: web-app + spec: + containers: + - name: web-app-container + image: elineen/todo-app:latest # Assurez-vous que ce nom est correct + ports: + - containerPort: 8080 + volumeMounts: + - name: pvc-storage + mountPath: /data + volumeClaimTemplates: + - metadata: + name: pvc-storage + spec: + accessModes: [ "ReadWriteOnce" ] + resources: + requests: + storage: 1Gi + diff --git a/stop-app.sh b/stop-app.sh new file mode 100644 index 0000000..0d08352 --- /dev/null +++ b/stop-app.sh @@ -0,0 +1,13 @@ +#!/bin/bash + +# Delete the Deployment +kubectl delete -f deployment.yaml + +# Delete the Service +kubectl delete -f service.yaml + +# Delete the StatefulSet +kubectl delete -f statefulset.yaml + +# Delete the namespace +kubectl delete namespace my-namespace