Despliegue multi‑contenedor con Docker Compose (FinTech Solutions)

Estructura

.
├─ docker-compose.yml
├─ .env
├─ reverse-proxy/
│  └─ nginx.conf
├─ api/
│  ├─ Dockerfile
│  ├─ app.py
│  └─ requirements.txt
├─ web/
│  ├─ Dockerfile
│  └─ build/index.html
├─ db/
│  └─ init/init.sql
└─ Makefile

Ejecución

1. Crear .env (ya incluido) y ajustar puertos si hace falta.
2. Levantar todo: make up o docker compose --env-file .env up -d --build
3. Verificar salud:
   • docker compose ps
   • curl http://localhost:${PROXY_HTTP_PORT}/health
   • curl http://localhost:${API_PORT}/health
4. Probar en navegador:
   • Web: http://localhost:${PROXY_HTTP_PORT}
   • Adminer: http://localhost:${ADMINER_PORT} (host db, puerto 5432, user ${POSTGRES_USER})
5. Logs: docker compose logs -f api

Comprobaciones

• docker compose ps con estados healthy.
• Navegador sirviendo la web y la API vía proxy (/api/...).
• Adminer conectado y tablas visibles.
• docker volume ls (volumen pgdata).
• docker network ls y docker inspect (resumen).

DBeaver

docker run --network fullstack-python-docker_backnet --name cloudbeaver --rm -ti -d -p 8978:8978 -v /opt/cloudbeaver/workspace dbeaver/cloudbeaver:latest

Notas

• La API usa DATABASE_URL -> postgresql://fintech:fintechpassword@db:5432/fintechdb.
• reverse-proxy enruta / a web y /api/ a api.

Tool

docker run -it  --network fullstack-python-docker_backnet nicolaka/netshoot sh

Install Docker and Docker-Compose - Ubuntu

# Add Docker's official GPG key:
sudo apt-get update
sudo apt-get install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc

# Add the repository to Apt sources:
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
  $(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}") stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update

sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin -y
sudo apt install docker-compose -y
sudo systemctl start docker
sudo systemctl enable docker
docker-compose --version

sudo usermod -aG docker $USER
(salir y entrar de ssh)
sudo apt install git -y
sudo apt install unzip -y