Useful Docker Commands

Basic Docker Commands

docker ps: List all running containers.
docker logs -f <container_id>: Follow the log output of a container.
docker exec -it <container_id> /bin/bash: Execute an interactive bash shell on the container.
docker exec -it <container_id> env: Print environment variables of the container.
docker image ls: List all Docker images.
docker image prune: Remove unused images.
docker image prune -a: Remove all unused images (including dangling images).
docker volume ls: List all volumes.
docker volume rm <volume_name>: Remove a specific volume.

docker-compose up: Create and start containers as per the docker-compose.yml.
docker-compose down: Stop and remove containers and networks created by 'up'.
docker-compose restart <service_name>: Restart a specific service.
docker-compose build <service_name>: Build or rebuild a specific service.
docker-compose up -d --no-deps --force-recreate <service_name>: Recreate a specific service without affecting others.
docker-compose logs <service_name>: View output from services.

docker exec -it <postgres_db_container_id> psql -U <username> -d <db_name>: Access PostgreSQL database.
docker exec -it <container_id> alembic revision --autogenerate -m "Migration message goes here": Create a new Alembic migration.
docker exec -it <container_id> alembic upgrade head: Apply the latest Alembic migration.
docker exec -it <container_id> alembic downgrade -1: Revert the last Alembic migration.

docker exec -it <container_id> apt-get update && apt-get install curl: Install curl in a container (for Debian-based images).