docker 获取jenkins镜像，并将8080端口映射到host主机8080端口
使用-p参数
docker run -it -p 8080:8080 jenkins host:container
URL:http://blog.opskumu.com/docker.html#docker–9
Commands:
attach Attach to a running container # 当前 shell 下 attach 连接指定运行镜像
build Build an image from a Dockerfile # 通过 Dockerfile 定制镜像
commit Create a new image from a container's changes # 提交当前容器为新的镜像
cp Copy files/folders from the containers
filesystem to the host path # 从容器中拷贝指定文件或者目录到宿主机中
create Create a new container # 创建一个新的容器，同 run，但不启动容器
diff Inspect changes on a container's filesystem # 查看 docker 容器变化
events Get real time events from the server # 从 docker 服务获取容器实时事件
exec Run a command in an existing container # 在已存在的容器上运行命令
export Stream the contents of a container as a tar
archive # 导出容器的内容流作为一个 tar 归档文件[对应 import ]
history Show the history of an image # 展示一个镜像形成历史
images List images # 列出系统当前镜像
import Create a new filesystem image from the
contents of a tarball # 从tar包中的内容创建一个新的文件系统映像[对应 export]
info Display system-wide information # 显示系统相关信息
inspect Return low-level information on a container # 查看容器详细信息
kill Kill a running container # kill 指定 docker 容器
load Load an image from a tar archive # 从一个 tar 包中加载一个镜像[对应 save]
login Register or Login to the docker registry server# 注册或者登陆一个 docker 源服务器
logout Log out from a Docker registry server # 从当前 Docker registry 退出
logs Fetch the logs of a container # 输出当前容器日志信息
port Lookup the public-facing port which is
NAT-ed to PRIVATE_PORT # 查看映射端口对应的容器内部源端口
pause Pause all processes within a container # 暂停容器
ps List containers # 列出容器列表
pull Pull an image or a repository from the docker
registry server # 从docker镜像源服务器拉取指定镜像或者库镜像
push Push an image or a repository to the docker
registry server # 推送指定镜像或者库镜像至docker源服务器
restart Restart a running container # 重启运行的容器
rm Remove one or more containers # 移除一个或者多个容器
rmi Remove one or more images # 移除一个或多个镜像[无容器使用该镜像才可删除，否则需删除相关容器才可继续或 -f 强制删除]
run Run a command in a new container # 创建一个新的容器并运行一个命令
save Save an image to a tar archive # 保存一个镜像为一个 tar 包[对应 load]
search Search for an image on the Docker Hub # 在 docker hub 中搜索镜像
start Start a stopped containers # 启动容器
stop Stop a running containers # 停止容器
tag Tag an image into a repository # 给源中镜像打标签
top Lookup the running processes of a container # 查看容器中运行的进程信息
unpause Unpause a paused container # 取消暂停容器
version Show the docker version information # 查看 docker 版本号
wait Block until a container stops, then print its
exit code # 截取容器停止时的退出状态值
Run 'docker COMMAND --help' for more information on a command.
docker option
Usage of docker:
--api-enable-cors=false Enable CORS headers in the remote API # 远程 API 中开启 CORS 头
-b, --bridge="" Attach containers to a pre-existing network bridge # 桥接网络
use 'none' to disable container networking
--bip="" Use this CIDR notation address for the network bridge's IP,
not compatible with -b # 和 -b 选项不兼容，具体没有测试过
-d, --daemon=false Enable daemon mode # daemon 模式
-D, --debug=false Enable debug mode # debug 模式
--dns=[] Force docker to use specific DNS servers # 强制 docker 使用指定 dns 服务器
--dns-search=[] Force Docker to use specific DNS search domains # 强制 docker 使用指定 dns 搜索域
-e, --exec-driver="native" Force the docker runtime to use a specific exec driver # 强制 docker 运行时使用指定执行驱动器
--fixed-cidr="" IPv4 subnet for fixed IPs (ex: 10.20.0.0/16)
this subnet must be nested in the bridge subnet (which is defined by -b or --bip)
-G, --group="docker" Group to assign the unix socket specified by -H when running in daemon mode
use '' (the empty string) to disable setting of a group
-g, --graph="/var/lib/docker" Path to use as the root of the docker runtime # 容器运行的根目录路径
-H, --host=[] The socket(s) to bind to in daemon mode # daemon 模式下 docker 指定绑定方式[tcp or 本地 socket]
specified using one or more tcp://host:port, unix:///path/to/socket, fd://* or fd://socketfd.
--icc=true Enable inter-container communication # 跨容器通信
--insecure-registry=[] Enable insecure communication with specified registries (no certificate verification for HTTPS and enable HTTP fallback) (e.g., localhost:5000 or 10.20.0.0/16)
--ip="0.0.0.0" Default IP address to use when binding container ports # 指定监听地址，默认所有 ip
--ip-forward=true Enable net.ipv4.ip_forward # 开启转发
--ip-masq=true Enable IP masquerading for bridge's IP range
--iptables=true Enable Docker's addition of iptables rules # 添加对应 iptables 规则
--mtu=0 Set the containers network MTU # 设置网络 mtu
if no value is provided: default to the default route MTU or 1500 if no default route is available
-p, --pidfile="/var/run/docker.pid" Path to use for daemon PID file # 指定 pid 文件位置
--registry-mirror=[] Specify a preferred Docker registry mirror
-s, --storage-driver="" Force the docker runtime to use a specific storage driver # 强制 docker 运行时使用指定存储驱动
--selinux-enabled=false Enable selinux support # 开启 selinux 支持
--storage-opt=[] Set storage driver options # 设置存储驱动选项
--tls=false Use TLS; implied by tls-verify flags # 开启 tls
--tlscacert="/root/.docker/ca.pem" Trust only remotes providing a certificate signed by the CA given here
--tlscert="/root/.docker/cert.pem" Path to TLS certificate file # tls 证书文件位置
--tlskey="/root/.docker/key.pem" Path to TLS key file # tls key 文件位置
--tlsverify=false Use TLS and verify the remote (daemon: verify client, client: verify daemon) # 使用 tls 并确认远程控制主机
-v, --version=false Print version information and quit # 输出 docker 版本信息
4.2 docker search
$ sudo docker search --help
Usage: docker search TERM
Search the Docker Hub for images # 从 Docker Hub 搜索镜像
--automated=false Only show automated builds
--no-trunc=false Don't truncate output
-s, --stars=0 Only displays with at least xxx stars
示例：
$ sudo docker search -s 100 ubuntu
# 查找 star 数至少为 100 的镜像，找出只有官方镜像 start 数超过 100，默认不加 s 选项找出所有相关 ubuntu 镜像
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
ubuntu Official Ubuntu base image 425 [OK]
4.3 docker info
$ sudo docker info
Containers: 1 # 容器个数
Images: 22 # 镜像个数
Storage Driver: devicemapper # 存储驱动
Pool Name: docker-8:17-3221225728-pool
Pool Blocksize: 65.54 kB
Data file: /data/docker/devicemapper/devicemapper/data
Metadata file: /data/docker/devicemapper/devicemapper/metadata
Data Space Used: 1.83 GB
Data Space Total: 107.4 GB
Metadata Space Used: 2.191 MB
Metadata Space Total: 2.147 GB
Library Version: 1.02.84-RHEL7 (2014-03-26)
Execution Driver: native-0.2 # 存储驱动
Kernel Version: 3.10.0-123.el7.x86_64
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 --help
Usage: 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 MB
4.6 docker rmi
删除一个或者多个镜像
$ sudo docker rmi --help
Usage: 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 --help
Usage: 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.
-P, --publish-all=false Publish all exposed ports to the host interfaces # 自动映射容器对外提供服务的端口
-p, --publish=[] Publish a container's port to the host # 指定端口映射
format: ip:hostPort:containerPort | ip::containerPort | hostPort:containerPort
(use 'docker port' to see the actual mapping)
--privileged=false Give extended privileges to this container # 提供更多的权限给容器
--restart="" Restart policy to apply when a container exits (no, on-failure[:max-retry], always)
--rm=false Automatically remove the container when it exits (incompatible with -d) # 如果容器退出自动移除和 -d 选项冲突
--security-opt=[] Security Options
--sig-proxy=true Proxify received signals to the process (even in non-tty mode). SIGCHLD is not proxied.
-t, --tty=false Allocate a pseudo-tty # 分配伪终端
-u, --user="" Username or UID # 指定运行容器的用户 uid 或者用户名
-v, --volume=[] Bind mount a volume (e.g., from the host: -v /host:/container, from docker: -v /container)
# 挂载卷
--volumes-from=[] Mount volumes from the specified container(s) # 从指定容器挂载卷
-w, --workdir="" Working directory inside the container # 指定容器工作目录
示例：
$ sudo docker images ubuntu
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
ubuntu 14.04 e54ca5efa2e9 4 weeks ago 276.5 MB
... ...
$ sudo docker run -t -i -c 100 -m 512MB -h test1 -d --name="docker_test1" ubuntu /bin/bash
# 创建一个 cpu 优先级为 100，内存限制 512MB，主机名为 test1，名为 docker_test1 后台运行 bash 的容器
a424ca613c9f2247cd3ede95adfbaf8d28400cbcb1d5f9b69a7b56f97b2b52e5
$ sudo docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
a424ca613c9f ubuntu:14.04 /bin/bash 6 seconds ago Up 5 seconds docker_test1
$ sudo docker attach docker_test1
root@test1:/# pwd
/
root@test1:/# exit
exit
关于cpu优先级:
By default all groups have 1024 shares. A group with 100 shares will get a ~10% portion of the CPU time - archlinux cgroups
4.8 docker start|stop|kill… …
docker start stop kill restart pause unpause rm commit inspect logs
docker start CONTAINER [CONTAINER…]
# 运行一个或多个停止的容器
docker stop CONTAINER [CONTAINER…]
# 停掉一个或多个运行的容器 -t 选项可指定超时时间
docker kill [OPTIONS] CONTAINER [CONTAINER…]
# 默认 kill 发送 SIGKILL 信号 -s 可以指定发送 kill 信号类型
docker restart [OPTIONS] CONTAINER [CONTAINER…]
# 重启一个或多个运行的容器 -t 选项可指定超时时间
docker pause CONTAINER
# 暂停一个容器，方便 commit
docker unpause CONTAINER
# 继续暂停的容器
docker rm [OPTIONS] CONTAINER [CONTAINER…]
# 移除一个或多个容器
-f, –force=false Force removal of running container
-l, –link=false Remove the specified link and not the underlying container
-v, –volumes=false Remove the volumes associated with the container
docker commit [OPTIONS] CONTAINER [REPOSITORY[:TAG]]
# 提交指定容器为镜像
-a, –author=”” Author (e.g., “John Hannibal Smith hannibal@a-team.com”)
-m, –message=”” Commit message
-p, –pause=true Pause container during commit
# 默认 commit 是暂停状态
docker inspect CONTAINER IMAGE [CONTAINER IMAGE…]
# 查看容器或者镜像的详细信息
docker logs CONTAINER
# 输出指定容器日志信息
-f, –follow=false Follow log output
# 类似 tail -f
-t, –timestamps=false Show timestamps
–tail=”all” Output the specified number of lines at the end of logs (defaults to all logs)
参考文档：Docker Run Reference