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Docker 기본 명령어

docker –help : docker command에 대한 정보를 제공합니다.

help를 참조하여 다양한 명령을 구성할 수 있습니다.

$ docker --help
Usage:  docker [OPTIONS] COMMAND

A self-sufficient runtime for containers

Common Commands:
  run         Create and run a new container from an image
  exec        Execute a command in a running container
  ps          List containers
  build       Build an image from a Dockerfile
  bake        Build from a file
  pull        Download an image from a registry
  push        Upload an image to a registry
  images      List images
  login       Authenticate to a registry
  logout      Log out from a registry
  search      Search Docker Hub for images
  version     Show the Docker version information
  info        Display system-wide information

Management Commands:
  ai*         Docker AI Agent - Ask Gordon
  builder     Manage builds
  buildx*     Docker Buildx
  cloud*      Docker Cloud
  compose*    Docker Compose
  container   Manage containers
  context     Manage contexts
  debug*      Get a shell into any image or container
  desktop*    Docker Desktop commands
  extension*  Manages Docker extensions
  image       Manage images
  init*       Creates Docker-related starter files for your project
  manifest    Manage Docker image manifests and manifest lists
  mcp*        Docker MCP Plugin
  model*      Docker Model Runner (EXPERIMENTAL)
  network     Manage networks
  plugin      Manage plugins
  sbom*       View the packaged-based Software Bill Of Materials (SBOM) for an image
  scout*      Docker Scout
  system      Manage Docker
  trust       Manage trust on Docker images
  volume      Manage volumes

Swarm Commands:
  swarm       Manage Swarm

Commands:
  attach      Attach local standard input, output, and error streams to a running container
  commit      Create a new image from a container's changes
  cp          Copy files/folders between a container and the local filesystem
  create      Create a new container
  diff        Inspect changes to files or directories on a container's filesystem
  events      Get real time events from the server
  export      Export a container's filesystem as a tar archive
  history     Show the history of an image
  import      Import the contents from a tarball to create a filesystem image
  inspect     Return low-level information on Docker objects
  kill        Kill one or more running containers
  load        Load an image from a tar archive or STDIN
  logs        Fetch the logs of a container
  pause       Pause all processes within one or more containers
  port        List port mappings or a specific mapping for the container
  rename      Rename a container
  restart     Restart one or more containers
  rm          Remove one or more containers
  rmi         Remove one or more images
  save        Save one or more images to a tar archive (streamed to STDOUT by default)
  start       Start one or more stopped containers
  stats       Display a live stream of container(s) resource usage statistics
  stop        Stop one or more running containers
  tag         Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE
  top         Display the running processes of a container
  unpause     Unpause all processes within one or more containers
  update      Update configuration of one or more containers
  wait        Block until one or more containers stop, then print their exit codes

Global Options:
      --config string      Location of client config files (default "/home/username/.docker")
  -c, --context string     Name of the context to use to connect to the daemon (overrides DOCKER_HOST env var and
                           default context set with "docker context use")
  -D, --debug              Enable debug mode
  -H, --host list          Daemon socket to connect to
  -l, --log-level string   Set the logging level ("debug", "info", "warn", "error", "fatal") (default "info")
      --tls                Use TLS; implied by --tlsverify
      --tlscacert string   Trust certs signed only by this CA (default "/home/username/.docker/ca.pem")
      --tlscert string     Path to TLS certificate file (default "/home/username/.docker/cert.pem")
      --tlskey string      Path to TLS key file (default "/home/username/.docker/key.pem")
      --tlsverify          Use TLS and verify the remote
  -v, --version            Print version information and quit

Run 'docker COMMAND --help' for more information on a command.

For more help on how to use Docker, head to https://docs.docker.com/go/guides/



docker 명령어는 docker (Management Command) Command 로 구성되어 있습니다.

docker (Management Command) Command

예를 들어,

docker container run

에서 container 는 Management Commands, run 은 Common command에 해당합니다.
여기서 container 는 생략이 가능합니다.

Management command 는 생략이 가능한 경우가 많으며, --help를 통해 뒤에 올 명령어들을 확인해볼 수 있습니다.

docker container --help

docker container run --help

docker image --help


로그인

이미지 조회

docker image ls (image name) : 로컬에 저장된 (해당 이름의) 모든 이미지 조회

$ docker image ls nginx
REPOSITORY   TAG                      IMAGE ID       CREATED        SIZE
nginx        latest                   3b7732505933   2 days ago     236MB
nginx        stable-alpine3.21-perl   bf8399910eca   5 months ago   127MB


이미지 파일명

컨테이너 실행 및 확인

docker container 의 생명주기

docker-container-lifecycle

docker run (OPTION) [image_name]
실행 중인 컨테이너의 ID가 출력됩니다.

실행 중인 컨테이너 목록 확인

docker ps



실행 중인 컨테이너 삭제

docker rm [image]

참고