Docker Cheat Sheet

29 Dec 2018 29 Dec 2018 1 min read Docker Cheat Sheet

Installing Docker 

Windows 

https://hub.docker.com/editions/community/docker-ce-desktop-windows

MacOS 

https://hub.docker.com/editions/community/docker-ce-desktop-mac

Linux 

CHANNEL=stable sh -c "$(curl -fsSL https://get.docker.com)"

Test Docker 

docker run --rm hello-world

Running Containers 

Run container in foreground:

docker run --rm -ti <imagename>

Run container in background:

docker run --rm -d <imagename>

Port mapping:

docker run -p <host_port>:<container_port> ...

Container name:

docker run --name <containername> ...

Mount host volume:

docker run -v <abs_dir_host>:<abs_dir_container>
docker run -v $(pwd)/<rel_dir_host>:<abs_dir_container> ...

Building Images 

Build container:

docker build --tag <imagename> .

Debugging and Analysis 

Get into a container

docker exec -ti <container> bash

Listing Things 

All images:

docker images

All running containers:

docker ps

All containers (including stopped):

docker ps -a

Volumes/Mounts of a container:

docker container inspect -f '{{ range .Mounts }}{{ .Name }}:{{ .Destination }} {{ end }}' <container>

Cleanup 

See: https://docs.docker.com/config/pruning/

docker system prune
docker image prune
docker container prune
docker volume prune