CMD.md

Docker Commands

Docker CLI build 命令行说明

Reference: https://docs.docker.com/engine/reference/commandline/build/

Docker CLI run 命令行说明

Reference: https://docs.docker.com/engine/reference/commandline/run/

• --name
  Assign a name to the container
• -i (--interactive)
  Keep STDIN open even if not attached
• -t
  Allocate a pseudo-TTY
• -d (--detach)
  Run container in background and print container ID
• -p (--expose)
  Expose a port or a range of ports
• -e (--env)
  Set environment variables

Dockerfile reference

Reference: https://docs.docker.com/engine/reference/builder/

Images

• docker images
  List all images

• docker image rm <IMAGE>
  Remove one single image

• docker image rmi <IMAGE> [IMAGE...]
  Remove multiple images

• docker images -f dangling=true
  List dangling images. They can be treated as caches.

• docker rmi $(docker images -qf dangling=true)
docker images -qf dangling=true | xargs docker rmi
docker image prune
  Remove dangling images. The above commands have the same effect.

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

Container

• docker ps -a
  List all containers

• docker exec -it <container_name> bash
  Enter container

• docker stop $(docker ps -aq)
  Stop all running containers

• docker rm <container_d>
  Remove container

• docker rm $(docker ps -aq) Remove all containers

• docker cp <containerId>:/file/path/within/container /host/path/target Copy files

Docker Compose

Reference https://docs.docker.com/compose/reference/

• docker-compose up
  前台启动

• docker-compose up -d
  Detached mode: Run containers in the background

• docker-compose up --build 修改Dockerfile后直接compose up，docker不会重新build image，需要用参数--build

• docker-compose down 销毁container。修改docker-compose.yml后, 需要用docker-compose重建 container

Compose Specification （docker-compose.yml）

Reference: https://docs.docker.com/compose/compose-file/

Service

-- 服务自启动 systemctl enable docker.service