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安装完成docker容器服务之后，需要了解如何操作它？在shell命令行下直接输入docker就可以查看帮助信息，如下。

[root ~]# docker

Usage: docker COMMAND A self-sufficient runtime for containers

Options:

–config string Location of client config files (default “/root/.docker”) -D, --debug Enable debug mode –help Print usage -H, --host list Daemon socket(s) to connect to (default []) -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:

container Manage containers image Manage images 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 volume Manage volumes

Commands:

attach Attach 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 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

1、docker start/stop/restart/kill

启动/停止/重启/杀掉容器

实例操作如下：

[root ~]# docker start myweb

[root ~]# docker stop myweb [root ~]# docker restart myweb [root ~]# docker kill -s kill myweb 参数 -s #向容器发送信号

这些命令不做过多解释

2、docker run

创建并启动一个新的容器

常用参数如下：

-d #后台运行容器，并返回容器ID -i #以交互式模式运行容器，常与-t参数同时使用 -t #给容器重新分配一个伪终端，常与-i参数同时使用 --name #给容器指定一个名称 -m #指定容器使用内存的最大值 --net #指定容器使用的网络类型 --link #链接到另一个容器 实例操作如下：

[root ~]# docker run -d --name nginx nginx:latest

#后台启动并运行一个名为nginx的容器，运行前它会自动去docker镜像站点下载最新的镜像文件 [root@docker ~]# docker run -d -P 80:80 nginx:latest #后台启动并运名为nginx的容器，然后将容器的80端口映射到物理机的80端口 [root@docker ~]# docker run -d -v /docker/data:/docker/data -P 80:80 nginx:latest #后台启动并运名为nginx的容器，然后将容器的80端口映射到物理机的80端口,并且将物理机的/docker/data目录映射到容器的/docker/data [root@docker ~]# docker run -it nginx:latest /bin/bash #以交互式模式运行容器，然后在容器内执行/bin/bash命令

3、docker rm

删除容器

常用参数如下：

-f #强制删除一个运行中的容器 -l #删除指定的链接 -v #删除与容器关联和卷 实例操作如下：

[root@docker ~]# docker rm -f mydocker

#强制删除容器