Basic docker commands

docker_commands.sh

# Notes

containerID # First 3 digits of the ID are usually sufficient

-it # Interactive mode

# Check Docker version
docker -v
# or
docker version

# Install an image
docker pull distribution # busybox and alpine are lightweight distributions, or the classic ubuntu

# Run a container
docker run distribution
# If you run a container with an image that is not available, Docker will download and run it.

# Run a container and remove it when execution is complete
docker run --rm distro

# Create a container without running it
docker create -it distribution command

# Create a container with a specified name
docker run -it --name=containerName distribution command

# Run a container with a command
docker run distribution command # a possible command is the classic 'echo helloWord'

# Stop a container
docker stop containerID

# Start a container
docker start containerID

# Attach to a container's console
docker attach containerID

# Execute commands in a container interactively (remaining in the console)
docker exec -it containerID command

# List images
docker images

# List active containers
docker ps

# List all containers
docker ps -a

# List all containers with full IDs
docker ps -a --no-trunc # normally Docker does not display full IDs

# Remove a container, as long as it is not running
docker rm containerID

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

# Better way to run a container and stay in the console
docker run -it distribution 
# It will always run as the root user

# Create an image in Docker
docker commit -a "creator <your@email.com>" -m "message (version 1.0)" containerID imageName 
# It will create an image based on the containerID
# It returns the ID of the new image

# Where to find images created by other developers
https://hub.docker.com/

# Search for images from the console
docker search search

# Search for images by score from the console
docker search -s 10 search # 10 is the desired score

# Delete an image
docker rmi imageID # No container can be using it