Simple Infra Setup

This is a simple webserver + db docker setup, using 3 node.js services, postgres and nginx. There are 2 docker compose configs, one for local dev environment and one for production.

Envrioment Variables

create .env file from .env.example.

Note: For production setup docker secrets can be implemented as for increased security.

cp .env.example .env

Local Development

Local developement uses bind mount to make the code changes reflected between host machine and docker container. Individual service ports are also exposed to host machine.

Start Containers

docker compose up

Services user, orders and products will start listening on ports 3000, 4000 and 5000 respectively.

Stop Containers

Press Ctrl + C to stop the containers. Run docker compose down to remove the containers.

Production

Production envrioment includes dependencies in the docker image itself. And uses nginx as reverse proxy to route requests to respective services.

Start Containers (In detached mode)

docker compose -f docker-compose.prod.yml up -d

Webserver will start listening on port 80 with traffic for services user, orders and products managed according to request url path /users, /orders and /products respectively.

Postgresql port is not exposed to host machine for production setup. If temporary access to container is needed then open temporary container to expose the port.

docker run -it --rm --name postgres_exposer -p 5432:5432 --link postgres_exposer:postgres --net be-infra-task_api-db alpine/socat TCP-LISTEN:5432,fork,reuseaddr TCP-CONNECT:postgres:5432

View Logs

docker compose -f docker-compose.prod.yml logs -f

Stop Containers

docker compose -f docker-compose.prod.yml down