docker参数说明

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Docker 命令参数

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[root@hadoop01 ~]# docker

Usage:  docker [OPTIONS] COMMAND

A self-sufficient runtime for containers

Options:
  --config string          Location of client config files (default "/root/.docker")
  -c, --context string     Name of the context to use to connect to the daemon (overrides DOCKER_HOST env var and default context
                           set with "docker context use")
  -D, --debug              Enable debug mode
  -H, --host list          Daemon socket(s) to connect to
  -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:
  builder     Manage builds
  config      Manage Docker configs
  container   Manage containers
  context     Manage contexts
  engine      Manage the docker engine
  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
  trust       Manage trust on Docker images
  volume      Manage volumes

Commands:
  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

Run 'docker COMMAND --help' for more information on a command.

Docker配置文件

Ｄocker 的配置文件可以设置大部分的后台进程参数，文件路径：

  • ubuntu 中的位置：/etc/default/docker/daemon.json

  • centos6 中的位置：/etc/sysconfig/docker/daemon.json

  • centos7 中的位置：/etc/docker/daemon.json

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{
    "authorization-plugins": [],//访问授权插件
    "data-root": "",//docker数据持久化存储的根目录
    "dns": [],//DNS服务器
    "dns-opts": [],//DNS配置选项，如端口等
    "dns-search": [],//DNS搜索域名
    "exec-opts": [],//执行选项
    "exec-root": "",//执行状态的文件的根目录
    "experimental": false,//是否开启试验性特性
    "storage-driver": "",//存储驱动器
    "storage-opts": [],//存储选项
    "labels": [],//键值对式标记docker元数据
    "live-restore": true,//dockerd挂掉是否保活容器（避免了docker服务异常而造成容器退出）
    "log-driver": "",//容器日志的驱动器
    "log-opts": {},//容器日志的选项
    "mtu": 0,//设置容器网络MTU（最大传输单元）
    "pidfile": "",//daemon PID文件的位置
    "cluster-store": "",//集群存储系统的URL
    "cluster-store-opts": {},//配置集群存储
    "cluster-advertise": "",//对外的地址名称
    "max-concurrent-downloads": 3,//设置每个pull进程的最大并发
    "max-concurrent-uploads": 5,//设置每个push进程的最大并发
    "default-shm-size": "64M",//设置默认共享内存的大小
    "shutdown-timeout": 15,//设置关闭的超时时限(who?)
    "debug": true,//开启调试模式
    "hosts": [],//监听地址(?)
    "log-level": "",//日志级别
    "tls": true,//开启传输层安全协议TLS
    "tlsverify": true,//开启输层安全协议并验证远程地址
    "tlscacert": "",//CA签名文件路径
    "tlscert": "",//TLS证书文件路径
    "tlskey": "",//TLS密钥文件路径
    "swarm-default-advertise-addr": "",//swarm对外地址
    "api-cors-header": "",//设置CORS（跨域资源共享-Cross-origin resource sharing）头
    "selinux-enabled": false,//开启selinux(用户、进程、应用、文件的强制访问控制)
    "userns-remap": "",//给用户命名空间设置 用户/组
    "group": "",//docker所在组
    "cgroup-parent": "",//设置所有容器的cgroup的父类(?)
    "default-ulimits": {},//设置所有容器的ulimit
    "init": false,//容器执行初始化，来转发信号或控制(reap)进程
    "init-path": "/usr/libexec/docker-init",//docker-init文件的路径
    "ipv6": false,//开启IPV6网络
    "iptables": false,//开启防火墙规则
    "ip-forward": false,//开启net.ipv4.ip_forward
    "ip-masq": false,//开启ip掩蔽(IP封包通过路由器或防火墙时重写源IP地址或目的IP地址的技术)
    "userland-proxy": false,//用户空间代理
    "userland-proxy-path": "/usr/libexec/docker-proxy",//用户空间代理路径
    "ip": "0.0.0.0",//默认IP
    "bridge": "",//将容器依附(attach)到桥接网络上的桥标识
    "bip": "",//指定桥接ip
    "fixed-cidr": "",//(ipv4)子网划分，即限制ip地址分配范围，用以控制容器所属网段实现容器间(同一主机或不同主机间)的网络访问
    "fixed-cidr-v6": "",//（ipv6）子网划分
    "default-gateway": "",//默认网关
    "default-gateway-v6": "",//默认ipv6网关
    "icc": false,//容器间通信
    "raw-logs": false,//原始日志(无颜色、全时间戳)
    "allow-nondistributable-artifacts": [],//不对外分发的产品提交的registry仓库
    "registry-mirrors": [],//registry仓库镜像
    "seccomp-profile": "",//seccomp配置文件
    "insecure-registries": [],//非https的registry地址
    "no-new-privileges": false,//禁止新优先级(??)
    "default-runtime": "runc",//OCI联盟(The Open Container Initiative)默认运行时环境
    "oom-score-adjust": -500,//内存溢出被杀死的优先级(-1000~1000)
    "node-generic-resources": ["NVIDIA-GPU=UUID1", "NVIDIA-GPU=UUID2"],//对外公布的资源节点
    "runtimes": {//运行时
        "cc-runtime": {
            "path": "/usr/bin/cc-runtime"
        },
        "custom": {
            "path": "/usr/local/bin/my-runc-replacement",
            "runtimeArgs": [
                "--debug"
            ]
        }
    }
}

参考

docker 各种参数配置

docker 的常用参数和解析

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