Common docker commands

common-docker-commands.sh

# If the commands fail on Windows, then make sure you're running in GitBash/Cygwin and NOT cmd

# HELP!
docker --help

# List docker images
docker images

# List running containers
docker ps

# List all containers (including stopped)
docker ps -a

# Build an image from a Dockerfile. Don't forget the dot!
docker build -t <name> .

# Create and run a container from an image
docker run <image_name>

# Check if container is running
# http://stackoverflow.com/a/24560463/486434
docker inspect -f "{{.State.Running}}" <container_name> 2> /dev/null

# Check if an image exists
# http://stackoverflow.com/a/30543453/486434
if [[ "$(docker images -q <image_name> 2> /dev/null)" == "" ]]; then
  # Image doesn't exist, create it?
fi

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

# Kill ALL docker containers
# Kill vs Stop? http://superuser.com/questions/756999/whats-the-difference-between-docker-stop-and-docker-kill
docker kill $(docker ps -q)

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

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

# Remove dangling images
docker rmi -f $(docker images -q -a -f dangling=true)

# Remove stopped containers, remove volumes not being used by any containers, all networks not being used by any containers, all dangling images
docker system prune

# Attach command prompt to running container
winpty docker exec -it <container_name> bash
# Or on Alpine
winpty docker exec -it <container_name> ash

# Less common but useful if you get the error "Unable to query docker version"
docker-machine regenerate-certs default