init

README.md

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+# MyApp Docker Deployment
+
+## Requirements
+- Docker installed
+- Docker Compose (optional)
+
+## Description
+This application consists of a web service and a database service. The web service listens on port 5000 and interacts with the database service.
+
+## Networks and Volumes
+- **myapp-network**: A bridge network for inter-container communication.
+- **myapp-data**: A volume to persist database data.
+
+## Container Configuration
+- **myapp-web**: Web service built from `./web` directory, exposes port 5000.
+- **myapp-db**: MySQL database service using the official MySQL 5.7 image.
+
+## Instructions
+- Prepare the application: `./prepare-app.sh`
+- Start the application: `./start-app.sh`
+- Stop the application: `./stop-app.sh`
+- Remove the application: `./remove-app.sh`
+
+## Accessing the Application
+Open a web browser and navigate to `http://localhost:5000`.

docker-compose.yaml

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+version: '3.8'
+
+services:
+  web:
+    image: myapp-web
+    ports:
+      - "5000:5000"
+    networks:
+      - myapp-network
+    restart: on-failure
+    depends_on:
+      - db
+
+  db:
+    image: mysql:5.7
+    environment:
+      MYSQL_ROOT_PASSWORD: password
+      MYSQL_DATABASE: appdb
+    volumes:
+      - myapp-data:/var/lib/mysql
+    networks:
+      - myapp-network
+    restart: on-failure
+
+networks:
+  myapp-network:
+    external: true
+
+volumes:
+  myapp-data:
+    external: true

prepare-app.sh

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+#!/bin/bash
+# prepare-app.sh
+
+if ! docker network ls | grep -w myapp-net >/dev/null; then
+  docker network create myapp-net
+  echo "Created Docker network: myapp-net"
+else
+  echo "Docker network myapp-net already exists."
+fi
+
+if ! docker volume ls | grep -w mysql-data >/dev/null; then
+  docker volume create mysql-data
+  echo "Created Docker volume: mysql-data"
+else
+  echo "Docker volume mysql-data already exists."
+fi
+
+echo "Preparation complete."
+

remove-app.sh

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+#!/bin/bash
+echo "Removing app ..."
+docker rm myapp myapp-db
+docker network rm myapp-net
+docker volume rm myapp-data

start-app.sh

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+#!/bin/bash
+echo "Running app ..."
+docker run -d --name myapp-db --network myapp-net -v myapp-data:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=password mysql:5.7
+docker run -d --name myapp  --network myapp-net -p 5000:80 nginx
+echo "The app is available at http://localhost:5000"

stop-app.sh

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+#!/bin/bash
+echo "Stopping app ..."
+docker stop myapp myapp-db