Get started with Docker
I just tried out Docker for a small project and now I get all the hype around it. While searching for good guides I stumbled upon this excellent tutorial by Prakhar Srivastav: A Docker Tutorial for Beginners. If you want a deeper understanding of Docker and how it works, and not only how to spin up a container and leave it running, I highly recommend reading it. He also go through the basics of writing your own Docker image which helped me a lot.
Documentation
Install
pacman -Syu docker docker-compose
systemctl start docker
systemctl enable docker
docker info
Usage
| Function | Command |
|---|---|
| Pull image | docker pull image |
| Remove image | docker image rm image |
| List images | docker image ls |
| Run container | docker run --name container options image |
| List containers | docker container ls |
| Stop container | docker container stop container |
| Remove container | docker container rm container |
| Remove inactive containers | docker container prune |
| Switch to container shell | docker exec -ti container /bin/sh |
| Exit container shell | exit |
| Build image | docker build --no-cache -t username/image:tag . |
| Delete stopped containers, networks, images and build cache | docker system prune -a |
| Delete dangling volumes | docker volume prune |
| Rename volume | docker volume create --name new_volume && docker run --rm -it -v old_volume:/from -v new_volume:/to alpine ash -c "cd /from ; cp -av . /to" && docker volume rm old_volume |
Docker Compose update images
If you're using Docker compose and want to update the images to the latest versions you can run the following when in the same directroy as docker-compose.yaml
docker-compose up --force-recreate --build -d
docker image prune -f