常用命令

管理命令

普通命令

容器生命周期管理

容器操作

容器 rootfs 命令

镜像仓库

本地镜像管理

相关信息

宿主机操作

端口和磁盘目录的映射

# 将宿主机的 81 端口映射到容器的 80 端口
# 将宿主机的 /develop/data 卷 映射到容器的 /data 卷
$ docker run -i -t -p 81:80 -v /develop/data:/data centos /bin/bash

• -p：映射端口号
• -v：磁盘目录映射

Docker 更改端口号映射：

运行中的容器无法映射新的端口号，也无法更改端口号映射，但可以通过两种方法解决。

1. iptable 转发端口

# 查看容器 IP
$ docker insepct 36afde543eb5 | grep IPAddress
> "IPAddress": "172.17.0.2"

# 将主机的 8081 端口映射到宿主机的 8080 端口
$ iptables -t nat -A DOCKER -p tcp --dport 8081 -j DNAT --to-destination 172.17.0.2:8080

2. 先提交容器为镜像，再运行这个容器，同时指定新的端口映射

# 提交容器为镜像
$ docker commit 9995ffa15f46  mycentos:0.1

# 停止旧的容器
$ docker stop 9995ffa15f46

# 重新从旧的镜像启动容器
$ docker run -i -t  -p 8081:8080  mycentos:0.1

宿主机关于 Docker 的操作

# 开启 docker
service docker start

# 重启
service docker restart

# 暂停
service docker stop

Docker Hub

创建和使用私有仓库

#
docker run -eSEARCH_BACKEND=sqlalchemy-eSQLALCHEMY_INDEX_DATABASE=sqlite:////tmp/docker-registry.db-d -name registry -p 5000:5000 registry

原版指令指引

按首字母大小写排列

• 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