Docker Cheatsheet

This note was created on 5/5/2023
This note was last edited on 5/5/2023

=== Images ===
List all images available on your Docker host:
> docker images

Download a specific Docker image from a registry:
> docker pull *image-name*

Build a Docker image from a Dockerfile:
> docker build -t *image-name* /path/

=== Containers ===
List all running containers:
> docker ps

Start a new container from a Docker image:
> docker run *image-name*

Start an existing container:
> docker start *container-id*

Stop a running container:
> docker stop *container-id*

Remove a stopped container:
> docker rm *container-id*

Connect to container:
> docker exec -it *container-id/container-name* /bin/sh

=== Networks ===
List all Docker networks available on your host:
> docker network ls

Create a new Docker network:
> docker network create *network-name*

Connect a container to a network:
> docker network connect *network-name* *container-id*

Disconnect a container from a network:
> docker network disconnect *network-name* *container-id*

=== Volumes ===
List all Docker volumes available on your host:
> docker volume ls

Create a new Docker volume:
> docker volume create *volume-name*

Inspect details of a specific Docker volume:
> docker volume inspect *volume-name*

Remove a Docker volume:
> docker volume rm *volume-name*

=== Logs ===
Fetch the logs of a container:
> docker logs *container*

Follow the logs of a container:
> docker logs -f *container*

Display last N lines of the logs:
> docker logs --tail N *container*

Show extra details provided by logs:
> docker logs --details *container*

Add timestamps to the logs:
> docker logs --timestamps *container*

=== Compose ===
Start all containers defined in a Docker Compose file:
> docker-compose up

Stop and remove all containers defined in a Docker Compose file:
> docker-compose down

View logs of all containers defined in a Docker Compose file:
> docker-compose logs

=== Dockerfile ===
~~~
FROM            Base image
MAINTAINER      Author name
RUN             Run a command
CMD             Default command
EXPOSE          Expose a port
ENV             Set an environment variable
ADD             Copy files or directories
COPY            Copy files or directories
ENTRYPOINT      Entrypoint script
~~~