Operating System: CentOS Linux 7 (Core)
4.4 docker pull && docker push
$ sudo docker pull --help # pull 拉取镜像 Usage: docker pull [OPTIONS] NAME[:TAG] Pull an image or a repository from the registry -a, --all-tags=false Download all tagged images in the repository $ sudo docker push # push 推送指定镜像 Usage: docker push NAME[:TAG] Push an image or a repository to the registry
示例：
$ sudo docker pull ubuntu # 下载官方 ubuntu docker 镜像，默认下载所有 ubuntu 官方库镜像
$ sudo docker pull ubuntu:14.04 # 下载指定版本 ubuntu 官方镜像
$ sudo docker push 192.168.0.100:5000/ubuntu # 推送镜像库到私有源[可注册 docker 官方账户，推送到官方自有账户] $ sudo docker push 192.168.0.100:5000/ubuntu:14.04 # 推送指定镜像到私有源 4.5 docker images
列出当前系统镜像
$ sudo docker images --helpUsage: docker images [OPTIONS] [NAME] List images
-a, --all=false Show all images (by default filter out the intermediate image layers) # -a 显示当前系统的所有镜像，包括过渡层镜像，默认 docker images 显示最终镜像，不包括过渡层镜像 -f, --filter=[] Provide filter values (i.e. 'dangling=true') --no-trunc=false Don't truncate output
-q, --quiet=false Only show numeric IDs
示例：
$ sudo docker images # 显示当前系统镜像，不包括过渡层镜像 $ sudo docker images -a # 显示当前系统所有镜像，包括过渡层镜像 $ sudo docker images ubuntu # 显示当前系统 docker ubuntu 库中的所有镜像 REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
ubuntu 12.04 ebe4be4dd427 4 weeks ago 210.6 MB
ubuntu 14.04 e54ca5efa2e9 4 weeks ago 276.5 MB
ubuntu 14.04-ssh 6334d3ac099a 7 weeks ago 383.2 MB4.6 docker rmi
删除一个或者多个镜像
$ sudo docker rmi --helpUsage: docker rmi IMAGE [IMAGE...] Remove one or more images
-f, --force=false Force removal of the image # 强制移除镜像不管是否有容器使用该镜像 --no-prune=false Do not delete untagged parents # 不要删除未标记的父镜像
4.7 docker run
$ sudo docker run --helpUsage: docker run [OPTIONS] IMAGE [COMMAND] [ARG...] Run a command in a new container
-a, --attach=[] Attach to stdin, stdout or stderr.
-c, --cpu-shares=0 CPU shares (relative weight) # 设置 cpu 使用权重 --cap-add=[] Add Linux capabilities
--cap-drop=[] Drop Linux capabilities
--cidfile="" Write the container ID to the file # 把容器 id 写入到指定文件 --cpuset="" CPUs in which to allow execution (0-3, 0,1) # cpu 绑定 -d, --detach=false Detached mode: Run container in the background, print new container id # 后台运行容器 --device=[] Add a host device to the container (e.g. --device=/dev/sdc:/dev/xvdc) --dns=[] Set custom dns servers # 设置 dns --dns-search=[] Set custom dns search domains # 设置 dns 域搜索 -e, --env=[] Set environment variables # 定义环境变量 --entrypoint="" Overwrite the default entrypoint of the image # ？ --env-file=[] Read in a line delimited file of ENV variables # 从指定文件读取变量值 --expose=[] Expose a port from the container without publishing it to your host # 指定对外提供服务端口 -h, --hostname="" Container host name # 设置容器主机名 -i, --interactive=false Keep stdin open even if not attached # 保持标准输出开启即使没有 attached --link=[] Add link to another container (name:alias) # 添加链接到另外一个容器 --lxc-conf=[] (lxc exec-driver only) Add custom lxc options --lxc-conf="lxc.cgroup.cpuset.cpus = 0,1" -m, --memory="" Memory limit (format: <number><optional unit>, where unit = b, k, m or g) # 内存限制 --name="" Assign a name to the container # 设置容器名 --net="bridge" Set the Network mode for the container # 设置容器网络模式 'bridge': creates a new network stack for the container on the docker bridge 'none': no networking for this container 'container:<name|id>': reuses another container network stack 'host': use the host network stack inside the container. Note: the host mode gives the container full access to local system services such as D-bus and is therefore considered insecure.
