• docker pull imagename or docker image pull imagename: Pull any Docker image from hub.docker.com.

• docker run -it <image_name>: Run a Docker image in interactive mode.

• docker exec <container_name> <command>: Fetch data or results from a Docker container and return to the original terminal.
• docker exec -it <container_name> <command>: Fetch data or results from a Docker container, staying in that container in the original terminal.

• docker container ls: List all running Docker containers.
• docker container ls -a: List all Docker containers.

• docker start <container_name>: Start a running container.
• docker stop <container_name>: Stop a running container.

• docker images: See all Docker images installed.
• docker images -ls: See the list of installed images in Docker.

• docker build -t username/imagename:tag .: Build a Docker image.

• docker login: Log in to your Docker Hub account before pushing images.
• docker tag username/imagename:tag username/imagename:tag: Tag your image with the repository information on Docker Hub.
• docker push username/imagename: Push your image to Docker Hub.

Docker Compose is a tool for defining and running multi-container Docker applications. It simplifies managing complex Docker setups by allowing you to define services, networks, and volumes in a YAML file.

# this file is a helper to run cal.com locally
# starts a postgres instance on port 5450 to use as a local db

version: "3.6"
services:
  postgres:
    image: postgres:13
    ports:
      - "5450:5432" # expose pg on port 5450 to not collide with pg from elsewhere
    restart: always
    volumes:
      - db_data:/var/lib/postgresql/data
    environment:
      POSTGRES_DB: "cal-saml"
      POSTGRES_PASSWORD: ""
      POSTGRES_HOST_AUTH_METHOD: trust
    healthcheck:
      test: ["CMD-SHELL", "pg_isready"]
      interval: 10s
      timeout: 5s
      retries: 5
  postgres_is_ready:
    image: postgres
    depends_on:
      postgres:
        condition: service_healthy
volumes:
  db_data:

docker compose up: Spin up all configurations defined in docker-compose.yml. Press Ctrl + C to stop all containers or use docker container stop. docker compose down: Remove everything from Docker containers. docker compose up -d: Run in detached mode, meaning it runs in the background.

here >>>

Feel free to modify and expand upon this README file according to your project's specific needs. "# .docker-git.md"