『现学现忘』Docker命令 — 17、帮助命令

1、docker version命令

命令:docker version,作用是显示显示Docker的版本信息。

# 显示docker的版本信息 [root@192 docker]# docker version Client: Docker Engine - Community Version: 20.10.5 API version: 1.41 Go version: go1.13.15 Git commit: 55c4c88 Built: Tue Mar 2 20:33:55 2021 OS/Arch: linux/amd64 Context: default Experimental: true Server: Docker Engine - Community Engine: Version: 20.10.5 API version: 1.41 (minimum version 1.12) Go version: go1.13.15 Git commit: 363e9a8 Built: Tue Mar 2 20:32:17 2021 OS/Arch: linux/amd64 Experimental: false containerd: Version: 1.4.4 GitCommit: 05f951a3781f4f2c1911b05e61c160e9c30eaa8e runc: Version: 1.0.0-rc93 GitCommit: 12644e614e25b05da6fd08a38ffa0cfe1903fdec docker-init: Version: 0.19.0 GitCommit: de40ad0 

2、docker info命令

命令:docker info,作用是显示Docker的系统信息,比docker version显示的信息更加详细,包括镜像和容器的数量。

[root@192 docker]# docker info Client: # docker客户端信息 Context: default Debug Mode: false Plugins: # 插件信息 app: Docker App (Docker Inc., v0.9.1-beta3) buildx: Build with BuildKit (Docker Inc., v0.5.1-docker) Server: # docker服务器端信息 Containers: 1 # 容器数量 Running: 0 # 正在运行的容器数量 Paused: 0 # 暂停的容器数量 Stopped: 1 # 已停止的容器数量 Images: 1 # 镜像数量 Server Version: 20.10.5 # docker服务器版本 Storage Driver: overlay2 # docker存储驱动程序 Backing Filesystem: xfs # 文件系统 Supports d_type: true Native Overlay Diff: true Logging Driver: json-file # 日志驱动程序 Cgroup Driver: cgroupfs # Cgroup驱动程序 Cgroup Version: 1 # Cgroup驱动版本 Plugins: # 插件信息 Volume: local Network: bridge host ipvlan macvlan null overlay Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog Swarm: inactive # Swarm状态 Runtimes: runc io.containerd.runc.v2 io.containerd.runtime.v1.linux # runtimes信息 Default Runtime: runc # 默认runtime Init Binary: docker-init containerd version: 05f951a3781f4f2c1911b05e61c160e9c30eaa8e runc version: 12644e614e25b05da6fd08a38ffa0cfe1903fdec init version: de40ad0 Security Options: # 安全选项 seccomp Profile: default Kernel Version: 3.10.0-1127.el7.x86_64 # linux内核版本 Operating System: CentOS Linux 7 (Core) # linux操作系统 OSType: linux # 操作系统类型 Architecture: x86_64 CPUs: 1 # 宿主机CPU数量 Total Memory: 972.3MiB # 宿主机内存 Name: 192.168.134.129 # 宿主机名称 ID: 3FXQ:IECC:SYGU:OZEZ:JFUM:2N57:WS2M:FUJW:CJAE:ILZT:2NDL:UAAB Docker Root Dir: /var/lib/docker # docker根目录 Debug Mode: false Registry: https://index.docker.io/v1/ Labels: Experimental: false Insecure Registries: 127.0.0.0/8 Registry Mirrors: # 镜像仓库 https://y29l3pxp.mirror.aliyuncs.com/ Live Restore Enabled: false WARNING: bridge-nf-call-iptables is disabled WARNING: bridge-nf-call-ip6tables is disabled 

3、docker –help命令(重点)

Docker的帮助命令:

可以执行docker --help,查看Docker的全部命令。

也可以执行docker 命令 --help,查看具体命令的使用说明。

示例如下:

[root@192 docker]# docker --help Usage: docker [OPTIONS] COMMAND # docker命令的使用方式 ,[]表示可以省略 A self-sufficient runtime for containers Options: # 选项 --config string Location of client config files (default "/root/.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(s) 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 "/root/.docker/ca.pem") --tlscert string Path to TLS certificate file (default "/root/.docker/cert.pem") --tlskey string Path to TLS key file (default "/root/.docker/key.pem") --tlsverify Use TLS and verify the remote -v, --version Print version information and quit Management Commands: # docker管理类命令 app* Docker App (Docker Inc., v0.9.1-beta3) builder Manage builds buildx* Build with BuildKit (Docker Inc., v0.5.1-docker) config Manage Docker configs container Manage containers context Manage contexts image Manage images manifest Manage Docker image manifests and manifest lists network Manage networks node Manage Swarm nodes plugin Manage plugins secret Manage Docker secrets service Manage services stack Manage Docker stacks swarm Manage Swarm system Manage Docker trust Manage trust on Docker images volume Manage volumes Commands: # docker命令 attach Attach local standard input, output, and error streams to a running container build Build an image from a Dockerfile 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 exec Run a command in a running container export Export a container's filesystem as a tar archive history Show the history of an image images List images import Import the contents from a tarball to create a filesystem image info Display system-wide information 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 login Log in to a Docker registry logout Log out from a Docker registry 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 ps List containers pull Pull an image or a repository from a registry push Push an image or a repository to a registry rename Rename a container restart Restart one or more containers rm Remove one or more containers rmi Remove one or more images run Run a command in a new container save Save one or more images to a tar archive (streamed to STDOUT by default) search Search the Docker Hub for images 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 version Show the Docker version information wait Block until one or more containers stop, then print their exit codes Run 'docker COMMAND --help' for more information on a command. 

我们也可以在Docker的官方文档中,来查看Docker所有命令的使用方法。

网址:https://docs.docker.com/

在页面中点击Reference(参考)。

image

然后在左侧栏中Command-line reference —> Docker CLI (docker) ,即可查看Docker的所有命令。

image

直达地址:https://docs.docker.com/reference/

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原文链接:https://www.cnblogs.com/liuyuelinfighting/p/16003017.html

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