title: Docker系列之二：常用命令解析
categories: Docker
tags:
- Docker
timezone: Asia/Shanghai
date: 2019-02-01
版本
[root@localhost home]# docker --version
Docker version 18.09.0, build 4d60db4
快捷键
CTRL + p + q 退出一个容器，并保持容器继续运行
CTRL + d 退出一个容器，并终止容器的运行
目录：
docker run
docker build
docker images
docker image
docker search：在Docker Hub中搜索image
[root@centos181001 ~]# docker search --help
Usage: docker search [OPTIONS] TERM
Search the Docker Hub for images
Options:
-f, --filter filter Filter output based on conditions provided
根据提供的条件过滤输出
--format string Pretty-print search using a Go template
格式化输出
--limit int Max number of search results (default 25)
最大搜索结果数（默认25）
--no-trunc Don't truncate output
不要截断输出
docker run
[root@centos181001 home]# docker run --help
Usage: docker run [OPTIONS] IMAGE [COMMAND] [ARG...]
Run a command in a new container
Options:
--add-host list Add a custom host-to-IP mapping (host:ip)
-a, --attach list Attach to STDIN, STDOUT or STDERR
指定标准输入输出内容类型，可选 STDIN/STDOUT/STDERR 三项；
--blkio-weight uint16 Block IO (relative weight), between 10 and 1000, or 0 to disable (default 0)
--blkio-weight-device list Block IO weight (relative device weight) (default [])
--cap-add list Add Linux capabilities
--cap-drop list Drop Linux capabilities
--cgroup-parent string Optional parent cgroup for the container
--cidfile string Write the container ID to the file
--cpu-period int Limit CPU CFS (Completely Fair Scheduler) period
--cpu-quota int Limit CPU CFS (Completely Fair Scheduler) quota
--cpu-rt-period int Limit CPU real-time period in microseconds
--cpu-rt-runtime int Limit CPU real-time runtime in microseconds
-c, --cpu-shares int CPU shares (relative weight)
--cpus decimal Number of CPUs
--cpuset-cpus string CPUs in which to allow execution (0-3, 0,1)
--cpuset-mems string MEMs in which to allow execution (0-3, 0,1)
-d, --detach Run container in background and print container ID
后台运行容器，并返回容器ID；
--detach-keys string Override the key sequence for detaching a container
--device list Add a host device to the container
--device-cgroup-rule list Add a rule to the cgroup allowed devices list
--device-read-bps list Limit read rate (bytes per second) from a device (default [])
--device-read-iops list Limit read rate (IO per second) from a device (default [])
--device-write-bps list Limit write rate (bytes per second) to a device (default [])
--device-write-iops list Limit write rate (IO per second) to a device (default [])
--disable-content-trust Skip image verification (default true)
--dns list Set custom DNS servers
dns 8.8.8.8: 指定容器使用的DNS服务器，默认和宿主一致；
--dns-option list Set DNS options
--dns-search list Set custom DNS search domains
--entrypoint string Overwrite the default ENTRYPOINT of the image
-e, --env list Set environment variables
-e username="ritchie": 设置环境变量；
--env-file list Read in a file of environment variables
--env-file=[]: 从指定文件读入环境变量；
--expose list Expose a port or a range of ports
--expose=[]: 开放一个端口或一组端口；
--group-add list Add additional groups to join
--health-cmd string Command to run to check health
--health-interval duration Time between running the check (ms|s|m|h) (default 0s)
--health-retries int Consecutive failures needed to report unhealthy
--health-start-period duration Start period for the container to initialize before starting health-retries countdown (ms|s|m|h) (default 0s)
--health-timeout duration Maximum time to allow one check to run (ms|s|m|h) (default 0s)
--help Print usage
打印此信息
-h, --hostname string Container host name
-h "mars": 指定容器的hostname；
--init Run an init inside the container that forwards signals and reaps processes
-i, --interactive Keep STDIN open even if not attached
以交互模式运行容器，通常与 -t 同时使用
--ip string IPv4 address (e.g., 172.30.100.104)
--ip6 string IPv6 address (e.g., 2001:db8::33)
--ipc string IPC mode to use
--isolation string Container isolation technology
--kernel-memory bytes Kernel memory limit
-l, --label list Set meta data on a container
--label-file list Read in a line delimited file of labels
--link list Add link to another container
--link=[]: 添加链接到另一个容器；
--link-local-ip list Container IPv4/IPv6 link-local addresses
--log-driver string Logging driver for the container
--log-opt list Log driver options
--mac-address string Container MAC address (e.g., 92:d0:c6:0a:29:33)
-m, --memory bytes Memory limit
-m :设置容器使用内存最大值；
--memory-reservation bytes Memory soft limit
--memory-swap bytes Swap limit equal to memory plus swap: '-1' to enable unlimited swap
--memory-swappiness int Tune container memory swappiness (0 to 100) (default -1)
--mount mount Attach a filesystem mount to the container
--name string Assign a name to the container
--name="nginx-lb": 为容器指定一个名称；
--network string Connect a container to a network (default "default")
--network-alias list Add network-scoped alias for the container
--no-healthcheck Disable any container-specified HEALTHCHECK
--oom-kill-disable Disable OOM Killer
--oom-score-adj int Tune host's OOM preferences (-1000 to 1000)
--pid string PID namespace to use
--pids-limit int Tune container pids limit (set -1 for unlimited)
--privileged Give extended privileges to this container
-p, --publish list Publish a container's port(s) to the host
端口映射，格式为：主机(宿主)端口:容器端口
-P, --publish-all Publish all exposed ports to random ports
将所有公开的端口发布到随机端口
--read-only Mount the container's root filesystem as read only
--restart string Restart policy to apply when a container exits (default "no")
--rm Automatically remove the container when it exits
容器退出时自动移除
--runtime string Runtime to use for this container
--security-opt list Security Options
安全选项
--shm-size bytes Size of /dev/shm
--sig-proxy Proxy received signals to the process (default true)
--stop-signal string Signal to stop a container (default "SIGTERM")
--stop-timeout int Timeout (in seconds) to stop a container
--storage-opt list Storage driver options for the container
--sysctl map Sysctl options (default map[])
--tmpfs list Mount a tmpfs directory
-t, --tty Allocate a pseudo-TTY
--ulimit ulimit Ulimit options (default [])
-u, --user string Username or UID (format: <name|uid>[:<group|gid>])
--userns string User namespace to use
--uts string UTS namespace to use
-v, --volume list Bind mount a volume
绑定一个卷
--volume-driver string Optional volume driver for the container
--volumes-from list Mount volumes from the specified container(s)
-w, --workdir string Working directory inside the container
示例：
运行一个docker并进入容器
docker run -it centos /bin/bash
运行一个docker，并保持后台运行，不进入容器
docker run -itd centos /bin/bash
运行一个容器并返回容器ID，同时保持后台运行不退出
docker run -d centos
运行一个容器，并在容器退出的时候自动删除
docker run -it --rm 9b65eb17913a
docker attach：进入到一个容器
[root@centos181001 ~]# docker attach --help
Usage: docker attach [OPTIONS] CONTAINER
Attach local standard input, output, and error streams to a running container
Options:
--detach-keys string Override the key sequence for detaching a container
--no-stdin Do not attach STDIN
不要附上STDIN
--sig-proxy Proxy all received signals to the process (default true
代理所有收到的进程信号（默认为真）
docker container
[root@centos181001 ~]# docker container --help
Usage: docker container COMMAND
Manage containers
Commands:
attach Attach local standard input, output, and error streams to a running container
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
exec Run a command in a running container
export Export a container's filesystem as a tar archive
inspect Display detailed information on one or more containers
kill Kill one or more running containers
logs Fetch the logs of a container
ls List containers
pause Pause all processes within one or more containers
port List port mappings or a specific mapping for the container
prune Remove all stopped containers
rename Rename a container
restart Restart one or more containers
rm Remove one or more containers
run Run a command in a new container
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
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
wait Block until one or more containers stop, then print their exit codes
Run 'docker container COMMAND --help' for more information on a command.
docker container attach（进入到一个容器）（等于docker attach）
docker container commit（根据容器的更改创建新image）（等于docker commit）
docker container cp（在容器和本地文件系统之间复制文件/文件夹）
[root@centos181001 ~]# docker container cp --help
Usage: docker container cp [OPTIONS] CONTAINER:SRC_PATH DEST_PATH|-
docker cp [OPTIONS] SRC_PATH|- CONTAINER:DEST_PATH
Copy files/folders between a container and the local filesystem
Options:
-a, --archive Archive mode (copy all uid/gid information)
存档模式（复制所有uid / gid信息）
-L, --follow-link Always follow symbol link in SRC_PATH
始终遵循SRC_PATH中的符号链接
示例：
docker container start：启动一个或多个已停止的容器
[root@centos181001 ~]# docker container start --help
Usage: docker container start [OPTIONS] CONTAINER [CONTAINER...]
Start one or more stopped containers
Options:
-a, --attach Attach STDOUT/STDERR and forward signals
连接STDOUT / STDERR并转发信号
--detach-keys string Override the key sequence for detaching a container
-i, --interactive Attach container's STDIN
示例：
docker container start
docker ps（列出容器）
[root@centos181001 ~]# docker ps --help
Usage: docker ps [OPTIONS]
List containers
Options:
-a, --all Show all containers (default shows just running)
列出所有容器（默认只显示正在运行的）
-f, --filter filter Filter output based on conditions provided
--format string Pretty-print containers using a Go template
格式化输出
-n, --last int Show n last created containers (includes all states) (default -1)
显示最后创建的容器（包括所有状态）（默认为-1）
-l, --latest Show the latest created container (includes all states) 显示最新创建的容器（包括所有状态）
--no-trunc Don't truncate output
不要截断输出
-q, --quiet Only display numeric IDs
只显示CONTAINER ID
-s, --size Display total file sizes
显示容器总文件大小
docker commit：根据容器的更改创建新image
[root@centos181001 ~]# docker commit --help
Usage: docker commit [OPTIONS] CONTAINER [REPOSITORY[:TAG]]
Create a new image from a container's changes
Options:
-a, --author string Author (e.g., "John Hannibal Smith <hannibal@a-team.com>")
作者信息
-c, --change list Apply Dockerfile instruction to the created image
-m, --message string Commit message
提交信息
-p, --pause Pause container during commit (default true)
在提交期间暂停容器（默认为true）
示例：
docker commit 1ff50d9bf8af centos_vim:1.0
docker build：从Dockerfile构建映像（此命令等于：docker image build）
Usage: docker build [OPTIONS] PATH | URL | -
使用-构建：
docker build - < Dockerfile
docker build - < context.tar.gz
URL参数可以引用三种类型的资源：Git仓库，预打包的tarball上下文和纯文本文件。
Build an image from a Dockerfile
Options:
--add-host list Add a custom host-to-IP mapping (host:ip)
--build-arg list Set build-time variables
设置构建时变量
--cache-from strings Images to consider as cache sources
--cgroup-parent string Optional parent cgroup for the container
--compress Compress the build context using gzip
使用gzip压缩构建上下文
--cpu-period int Limit the CPU CFS (Completely Fair Scheduler) period
--cpu-quota int Limit the CPU CFS (Completely Fair Scheduler) quota
-c, --cpu-shares int CPU shares (relative weight)
--cpuset-cpus string CPUs in which to allow execution (0-3, 0,1)
--cpuset-mems string MEMs in which to allow execution (0-3, 0,1)
--disable-content-trust Skip image verification (default true)
默认跳过对生成的image的测试，设置该选项，将对镜像进行验证
-f, --file string Name of the Dockerfile (Default is 'PATH/Dockerfile')
指定Dockerfile的路径，默认：'PATH/Dockerfile'
--force-rm Always remove intermediate containers
总是删除掉中间环节的容器
--iidfile string Write the image ID to the file
写入image ID到文件
--isolation string Container isolation technology
容器隔离技术
--label list Set metadata for an image
为生成的镜像设置metadata
-m, --memory bytes Memory limit
默认启动一个 container，对于容器的内存是没有任何限制的。
--memory-swap bytes Swap limit equal to memory plus swap: '-1' to enable unlimited swap
--network string Set the networking mode for the RUN instructions during build (default "default")
--no-cache Do not use cache when building the image
构建image的时候不要使用缓存，默认false
--pull Always attempt to pull a newer version of the image
在构建image的时候总是尝试pull镜像的最新版本
-q, --quiet Suppress the build output and print image ID on success
--rm Remove intermediate containers after a successful build (default true)
成功构建后删除中间容器（默认为true）
--security-opt strings Security options
安全选项
--shm-size bytes Size of /dev/shm
-t, --tag list Name and optionally a tag in the 'name:tag' format
--target string Set the target build stage to build.
--ulimit ulimit Ulimit options (default [])
示例：
使用当前目录的Dockerfile生成image并查看
docker build -t centos_tengine:1.0 .
docker image ls centos_tengine
docker images
此命令等于：docker image ls
docker image
[root@centos181001 home]# docker image push --help
Usage: docker image push [OPTIONS] NAME[:TAG]
Push an image or a repository to a registry
Options:
--disable-content-trust Skip image signing (default true)
[root@centos181001 home]# docker image --help
Usage: docker image COMMAND
Manage images
Commands:
build Build an image from a Dockerfile
history Show the history of an image
import Import the contents from a tarball to create a filesystem image
inspect Display detailed information on one or more images
load Load an image from a tar archive or STDIN
ls List images
prune Remove unused images
pull Pull an image or a repository from a registry
push Push an image or a repository to a registry
rm Remove one or more images
save Save one or more images to a tar archive (streamed to STDOUT by default)
tag Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE
Run 'docker image COMMAND --help' for more information on a command.
build：从Dockerfile构建映像（等同于docker build）
history：查看指定image的创建历史
Usage: docker image history [OPTIONS] IMAGE
Show the history of an image
Options:
--format string Pretty-print images using a Go template
格式化输出
-H, --human Print sizes and dates in human readable format (default true)
以人类可读格式打印尺寸和日期（默认为true）
--no-trunc Don't truncate output
不要截断输出（长IMAGE ID格式）
-q, --quiet Only show numeric IDs
只显示IMAGE ID
示例：
docker image history httpd:latest
docker image history db7b8a965358
docker image history --no-trunc db7b8a965358
docker image history -q db7b8a965358
import：根据export出的tar文件创建一个镜像.
Usage: docker image import [OPTIONS] file|URL|- [REPOSITORY[:TAG]]
Import the contents from a tarball to create a filesystem image
Options:
-c, --change list Apply Dockerfile instruction to the created image
-m, --message string Set commit message for imported image
示例：
docker image import /home/nginx.tar nginx:latest
这里需要指定新镜像的名字和标签，否则会显示<none>
inspect：显示一个或多个image的详细信息
Usage: docker image inspect [OPTIONS] IMAGE [IMAGE...]
Display detailed information on one or more images
Options:
-f, --format string Format the output using the given Go template
格式化输出
示例：
docker image inspect 42b4762643dc
docker image inspect nginx
docker image inspect nginx:latest
docker image inspect nginx:latest hello-world
load：从tar归档文件或者标准输入流载入iamge
Usage: docker image load [OPTIONS]
Load an image from a tar archive or STDIN
Options:
-i, --input string Read from tar archive file, instead of STDIN
从tar归档文件中读取，而不是STDIN
-q, --quiet Suppress the load outp
示例：
docker image load -i /home/nginx.tar
ls：列出image（此命令等于docker images）
Usage: docker image ls [OPTIONS] [REPOSITORY[:TAG]]
List images
Aliases:
ls, images, list
Options:
-a, --all Show all images (default hides intermediate images)
显示所有图像（默认隐藏中间图像）
--digests Show digests
显示摘要（可以显示镜像大小等信息）同时不要截断输出（显示长IMAGE ID格式）
-f, --filter filter Filter output based on conditions provided
根据提供的条件过滤输出
--format string Pretty-print images using a Go template
格式化输出
--no-trunc Don't truncate output
不要截断输出（显示长IMAGE ID格式）
-q, --quiet Only show numeric IDs
仅显示IMAGE ID
示例：
docker image ls nginx
docker image ls
docker image ls -a
docker image ls --digests
docker image ls --no-trunc
docker image ls -q
prune：删除未使用的image
Usage: docker image prune [OPTIONS]
Remove unused images
默认情况下，只会清理 dangling 镜像。
悬挂镜像是一种特殊的镜像，这种镜像既没有仓库名也没有标签，他们的值都为
一般来说，虚悬镜像已经失去了存在的价值，是可以随意删除的
dangling经常可以用以下命令查看：docker image ls -f dangling=true
Options:
-a, --all Remove all unused images, not just dangling ones
通过 -a 标志可以删除没有被已有容器使用的所有镜像：而不只是删除悬空镜像
--filter filter Provide filter values (e.g. 'until=<timestamp>')
提供过滤器
-f, --force Do not prompt for confirmation
强制删除，不提示确认
示例:
docker image prune
docker image prune -a
docker image prune -a -f
pull：拉取镜像
Usage: docker image pull [OPTIONS] NAME[:TAG|@DIGEST]
Options:
-a, --all-tags Download all tagged images in the repository
--disable-content-trust Skip image verification (default true)
拉取所有版本
示例：
docker image pull nginx
docker image pull -a nginx
push：推送iamge到仓库
Usage: docker image push [OPTIONS] NAME[:TAG]
Options:跳过图像签名
--disable-content-trust Skip image signing (default true)
示例：
docker image push hello-world:1.0
rm：删除一个或多个image
Usage: docker image rm [OPTIONS] IMAGE [IMAGE...]
Aliases:
rm, rmi, remove
Options:强制删除
-f, --force Force removal of the image
--no-prune Do not delete untagged parents
示例：
docker image rm hello-world:2.0 hello-world:latest
save：将一个或多个图像保存到tar存档（默认情况下流式传输到STDOUT）
Usage: docker save [OPTIONS] IMAGE [IMAGE...]
Options:
-o, --output string Write to a file, instead of STDOUT
示例：
docker save -o /home/hello-world.tar hello-world
docker save -o /home/hello-world.tar hello-world:2.0
docker save -o /home/hello-world.tar fce289e99eb9
tag：为image打标签
Usage: docker tag SOURCE_IMAGE[:TAG] TARGET_IMAGE[:TAG]
示例：
docker image tag hello-world hello-world:2.0
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