查看docker info的帮助信息,如下:
[root@localhost ~]# docker info --help Usage: docker info [OPTIONS] Display system-wide information Options: -f, --format string Format the output using the given Go template
该命令用来显示整个系统的信息。其中:
-f, --format string 使用给定的Go模板格式化输出信息。
实例:显示当前Docker的信息,如下:
[root@localhost ~]# docker info Containers: 2 容器数 Running: 0 正在运行的容器数 Paused: 0 暂停的容器数 Stopped: 2 停止的容器数 Images: 3 镜像数 Server Version: 18.09.6 服务器版本 Storage Driver: overlay2 Backing Filesystem: xfs Supports d_type: true Native Overlay Diff: true Logging Driver: json-file Cgroup Driver: cgroupfs ... Kernel Version: 3.10.0-957.el7.x86_64 Operating System: CentOS Linux 7 (Core) 操作系统 OSType: linux 操作系统类型 Architecture: x86_64 CPU架构 CPUs: 1 CPU数 Total Memory: 972.6MiB 总内存数 Name: localhost.localdomain ... Live Restore Enabled: false Product License: Community Engine [root@localhost ~]#
使用 docker help 命令可以查看 docker 的所有命令信息。如下:
[root@localhost ~]# docker help Usage: docker [OPTIONS] COMMAND A self-sufficient runtime for containers Options: --config string Location of client config files (default "/root/.docker") -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: builder Manage builds ...
还可以使用“docker command help”查看某个 command 的帮助信息。如下:
[root@localhost ~]# docker rm --help Usage: docker rm [OPTIONS] CONTAINER [CONTAINER...] Remove one or more containers Options: -f, --force Force the removal of a running container (uses SIGKILL) -l, --link Remove the specified link -v, --volumes Remove the volumes associated with the container
该命令用来查看docker当前版本信息。帮助文档如下:
[root@localhost ~]# docker version --help Usage: docker version [OPTIONS] Show the Docker version information Options: -f, --format string Format the output using the given Go template --kubeconfig string Kubernetes config file
其中:
-f, --format string 使用指定的Go模板格式化输出
--kubeconfig string Kubernetes配置文件
实例:显示当前docker的版本信息。
[root@localhost ~]# docker version Client: Version: 18.09.7 API version: 1.39 Go version: go1.10.8 Git commit: 2d0083d Built: Thu Jun 27 17:56:06 2019 OS/Arch: linux/amd64 Experimental: false Server: Docker Engine - Community Engine: Version: 18.09.7 API version: 1.39 (minimum version 1.12) Go version: go1.10.8 Git commit: 2d0083d Built: Thu Jun 27 17:26:28 2019 OS/Arch: linux/amd64 Experimental: false