帮助

docker --help

Docker 的帮助命令是一个万能命令，可以用来查看 Docker 的所有命令。

语法

docker [命令] --help

查看镜像相关命令

[root@sail ~]# docker images --help

Usage:  docker images [OPTIONS] [REPOSITORY[:TAG]]

List images

Options:

  -a, --all             Show all images (default hides intermediate images)

      --digests         Show digests

  -f, --filter filter   Filter output based on conditions provided

      --format string   Pretty-print images using a Go template

      --no-trunc        Don't truncate output

  -q, --quiet           Only show image IDs

查看容器相关命令

[root@sail ~]# docker ps --help

Usage:  docker ps [OPTIONS]

List containers

Options:

  -a, --all             Show all containers (default shows just running)

  -f, --filter filter   Filter output based on conditions provided

      --format string   Pretty-print containers using a Go template

  -n, --last int        Show n last created containers (includes all states) (default -1)

  -l, --latest          Show the latest created container (includes all states)

      --no-trunc        Don't truncate output

  -q, --quiet           Only display container IDs

  -s, --size            Display total file sizes

基本信息

docker version

使用 docker version 命令可以查看 Docker 的基本信息。

[root@sail ~]# docker version

Client: Docker Engine - Community

 Version:           20.10.11

 API version:       1.41

 Go version:        go1.16.9

 Git commit:        dea9396

 Built:             Thu Nov 18 00:38:53 2021

 OS/Arch:           linux/amd64

 Context:           default

 Experimental:      true

Server: Docker Engine - Community

 Engine:

  Version:          20.10.11

  API version:      1.41 (minimum version 1.12)

  Go version:       go1.16.9

  Git commit:       847da18

  Built:            Thu Nov 18 00:37:17 2021

  OS/Arch:          linux/amd64

  Experimental:     false

 containerd:

  Version:          1.4.12

  GitCommit:        7b11cfaabd73bb80907dd23182b9347b4245eb5d

 runc:

  Version:          1.0.2

  GitCommit:        v1.0.2-0-g52b36a2

 docker-init:

  Version:          0.19.0

  GitCommit:        de40ad0

系统信息

docker info

使用 docker info 命令可以查看 Docker 的系统信息。

[root@sail ~]# docker info

Client:

 Context:    default

 Debug Mode: false

 Plugins:

  app: Docker App (Docker Inc., v0.9.1-beta3)

  buildx: Build with BuildKit (Docker Inc., v0.6.3-docker)

  scan: Docker Scan (Docker Inc., v0.9.0)

Server:

 Containers: 1

  Running: 0

  Paused: 0

  Stopped: 1

 Images: 1

 Server Version: 20.10.11

 Storage Driver: overlay2

  Backing Filesystem: extfs

  Supports d_type: true

  Native Overlay Diff: true

  userxattr: false

 Logging Driver: json-file

 Cgroup Driver: cgroupfs

 Cgroup Version: 1

 Plugins:

  Volume: local

  Network: bridge host ipvlan macvlan null overlay

  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog

 Swarm: inactive

 Runtimes: io.containerd.runc.v2 io.containerd.runtime.v1.linux runc

 Default Runtime: runc

 Init Binary: docker-init

 containerd version: 7b11cfaabd73bb80907dd23182b9347b4245eb5d

 runc version: v1.0.2-0-g52b36a2

 init version: de40ad0

 Security Options:

  seccomp

   Profile: default

 Kernel Version: 3.10.0-957.21.3.el7.x86_64

 Operating System: CentOS Linux 7 (Core)

 OSType: linux

 Architecture: x86_64

 CPUs: 2

 Total Memory: 1.694GiB

 Name: sail

 ID: 2GYU:CVF3:LSAL:J37H:TGME:AOCA:BROB:PHCD:ZPN2:BQCG:GXHB:7Q3L

 Docker Root Dir: /var/lib/docker

 Debug Mode: false

 Registry: https://index.docker.io/v1/

 Labels:

 Experimental: false

 Insecure Registries:

  127.0.0.0/8

 Registry Mirrors:

  https://l6b75cm0.mirror.aliyuncs.com/

 Live Restore Enabled: false

巴特西

Docker 02 基本命令

帮助

docker --help

基本信息

docker version

系统信息

docker info

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