Docker-Compose

containerize Flask app, PostgreSQL and Redis.

---

remember to create you own environment variable folder /env/app.env & /env/db.env

---

1. Creating a Dockerfile to containerize the Flask app, use bind mound volume to in sure if change in app.py occurs don't need to rebuild image.
2. Writing a docker-compose.yml file to orchestrate the app, PostgreSQL(use named volume to store data persistently), and Redis.

---

how to run

run: docker-compose up -d --build

test: curl http://localhost/health

the result should be:

1. "connected to both redis and database" Good
2. "connected to database" Error
3. "connected to redis" Error