# Docker Note

### Upgrade docker-compose v1 to v2
- Install using the repository

    sudo apt-get update
    sudo apt-get install docker-compose-plugin

https://docs.docker.com/compose/install/linux/
- Install the plugin manually (Ubuntu 16.04)

    DOCKER_CONFIG=${DOCKER_CONFIG:-$HOME/.docker}

    # create the docker plugins directory if it doesn't exist yet    
    mkdir -p $DOCKER_CONFIG/cli-plugins
    
    # download the CLI into the plugins directory
    curl -SL https://github.com/docker/compose/releases/download/v2.12.2/docker-compose-linux-x86_64 -o $DOCKER_CONFIG/cli-plugins/docker-compose

    # make the CLI executable
    chmod +x $DOCKER_CONFIG/cli-plugins/docker-compose

https://www.rockyourcode.com/how-to-install-docker-compose-v2-on-linux-2021/
https://askubuntu.com/questions/1424118/how-to-install-docker-and-docker-compose-on-ubutntu-22-04
- Check version
`docker compose version`

### Useful command
- list container
`sudo docker ps -a`
- list images
`sudo docker images`
- start/stop container
`sudo docker start {CONTAINER ID}`
`sudo docker stop {CONTAINER ID}`
- remove container
`sudo docker rm {CONTAINER ID}`
- remove all exited containers
`sudo docker rm $( sudo docker ps --filter status=exited -q)`
- into container by id
`sudo docker exec -it {CONTAINER ID} bash`
- run image
`sudo docker run -it {REPOSITORY}:{TAG} bash`
- run image & mount host directory to container
`sudo docker run -v /home/yen/:/tmp -it {REPOSITORY}:{TAG} bash`
- export container
`sudo docker export {NAMES} | gzip > container_file.gz`
- import local file to image
`sudo docker import container_file.gz {REPOSITORY}:{TAG}`
- save image
`sudo docker save {REPOSITORY}:{TAG} > image_file.tar`
- load image
`sudo docker load < image_file.tar`
- build image by dockerfile
`sudo docker build -t {REPOSITORY}:{TAG} .`

###### tags: `Note` `Docker`