Project structure:
. ├── backend │ ├── Dockerfile │ ... ├── compose.yaml ├── frontend │ ├── ... │ └── Dockerfile └── README.md services: backend: build: backend ... db: image: postgres:12-alpine ... frontend: build: frontend ports: - 3000:3000 ... The compose file defines an application with three services frontend, backend and db. When deploying the application, docker compose maps port 3000 of the frontend service container to port 3000 of the host as specified in the file. Make sure port 3000 on the host is not already being in use.
$ docker compose up -d Creating network "react-rust-postgres_default" with the default driver Building backend ... Successfully tagged react-rust-postgres_frontend:latest WARNING: Image for service frontend was built because it did not already exist. To rebuild this image you must use `docker-compose build` or `docker-compose up --build`. Creating react-rust-postgres_frontend_1 ... done Creating react-rust-postgres_db_1 ... done Creating react-rust-postgres_backend_1 ... done Listing containers must show three containers running and the port mapping as below:
$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 30b7d9dc4898 react-rust-postgres_backend "cargo run --offline" 37 seconds ago Up 35 seconds 8000/tcp react-rust-postgres_backend_1 0bca0cb682b8 react-rust-postgres_frontend "docker-entrypoint.s…" 42 seconds ago Up 41 seconds 0.0.0.0:3000->3000/tcp react-rust-postgres_frontend_1 1611961bf3d1 postgres:12-alpine "docker-entrypoint.s…" 42 seconds ago Up 36 seconds 0.0.0.0:5432->5432/tcp react-rust-postgres_db_1 After the application starts, navigate to http://localhost:3000 in your web browser to get a colorful message.
Stop and remove the containers
$ docker compose down Stopping react-rust-postgres_backend_1 ... done Stopping react-rust-postgres_frontend_1 ... done Stopping react-rust-postgres_db_1 ... done Removing react-rust-postgres_backend_1 ... done Removing react-rust-postgres_frontend_1 ... done Removing react-rust-postgres_db_1 ... done Removing network react-rust-postgres_default 