Deploy a two tier application using docker
🚀 Thrilled to share the success of a hands-on Docker project! 🐳💻 Recently, I wrapped up a hands-on experience deploying a two-tier Flask application paired with MySQL. The journey involved delving into the complexities of containerized architecture, with a special emphasis on establishing seamless communication between the front-end Flask app and the back-end MySQL database. 🛳️✨
Quick Steps:
- Cloned a Git repo on AWS EC2.
2. Created a MySQL volume for persistent data.
mkdir volumes
cd volumes
mkdir flask-app
cd two-tier-flask-app/
docker volume create — name mysql-volume — opt type=none — opt device=/home/ubuntu/mydockerbuild/volumes — opt o=bind
3. Launched MySQL container with proper configuration.
4. Checked the database and confirmed volume mount.
docker ps
docker exec -it <container id> bash
mysql -u root -p
show databases;
5. Built and ran the Flask app container, facing and resolving container isolation issues.
docker build -t flask-app .
docker images
docker run -d -p 5000:5000 — name flask-app -e MYSQL_HOST=mysql -e MYSQL_USER=admin -e MYSQL_PASSWORD=<youradminpassword> -e MYSQL_DB=testdb flask-app:latest
6. Created a Docker network for communication.
7. Added both MySQL and Flask containers to the network.
docker kill <container id> docker rm <container id> docker run -d -p 3306:3306 — mount source=mysql-volume,target=/var/lib/mysql — name mysql — network two-tier-app-nw -e MYSQL_ROOT_PASSWORD=<your password> -e MYSQL_DATABASE=testdb -e MYSQL_USER=admin -e MYSQL_PASSWORD=<yourpassword> mysql:latest docker inspect <network name> docker run -d -p 5000:5000 — name flask-app — network two-tier-app-nw -e MYSQL_HOST=mysql -e MYSQL_USER=admin -e MYSQL_PASSWORD=<yourpassword> -e MYSQL_DB=testdb flask-app:latest docker inspect <network name>
Congratulations! The app is up and running.
Achieved a fully functional two-tier architecture, enhancing understanding of Docker orchestration. Explore the deployed app at EC2 IP:5000 and confirmed successful data interaction with MySQL. 🎉🐍📦
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