Docker useful commands

docker

# Docker connect to host machine:
1. Use `--net="host"` in docker `run` command, then connet with `127.0.0.1`
2. Use: `host.docker.internal`

# Docker's localhost IP:
172.17.0.1

# Run docker in interactive Bash session
$ docker run -it <image> /bin/bash

# With ENTRYPOINT defined
$ docker run -it --entrypoint /bin/bash <image>

# Attach to the running container with Bash session
$ docker exec -it <container> /bin/bash

# List all exited containers
$ docker ps -aq -f status=exited

# Remove stopped containers
$ docker container prune
$ docker ps -aq --no-trunc -f status=exited | xargs docker rm

# Remove dangling images
$ docker image prune

# Remove all images which are not used by existing containers
$ docker image prune -a

# Remove dangling/untagged images
$ docker images -q --filter dangling=true | xargs docker rmi

# Remove unused volumes
$ docker volume prune
$ docker volume rm $(docker volume ls -qf dangling=true)

# Stop all containers
$ docker stop $(docker ps -a -q)

# Remove all containers
$ docker rm $(docker ps -a -q)

# Remove all images
$ docker rmi $(docker images -a -q)

# Save images to a tar archive base on docker-compose.yml
$ docker save -o <tar archive filename> $(docker-compose config | awk '{if ($1 == "image:") print $2;}')

# Load images from tar archive
$ docker load -i <tar archive filename>