docker修改默认存储路径(有效)

查看当前docker的存储路径

docker info |grep Dir

关闭docker服务 sudo service docker stop sudo systemctl stop docker 将原有数据迁移至新目录

mkdir /path/docker -p

mv /var/lib/docker/* /path/docker/

修改docker.service配置文件，使用 —graph 参数指定存储位置

vim /usr/lib/systemd/system/docker.service

ExecStart=/usr/bin/dockerd -H fd:// -containerd=/run/containerd/containerd.sock —graph /data/service/docker

重新加载配置文件

systemctl daemon-reload

systemctl start docker

systemctl enable docker
systemctl status docker

查看修改是否成功

docker info | grep Dir

docker

命令

  2. Usage:    docker [OPTIONS] COMMAND
  4. A self-sufficient runtime for containers
  6. Options:
  7.       --config string      Location of client config files (default "/home/fcq/.docker")
  8.   -c, --context string     Name of the context to use to connect to the daemon (overrides DOCKER_HOST env var and default context set with
  9.                            "docker context use")
  10.   -D, --debug              Enable debug mode
  11.   -H, --host list          Daemon socket(s) to connect to
  12.   -l, --log-level string   Set the logging level ("debug"|"info"|"warn"|"error"|"fatal") (default "info")
  13.       --tls                Use TLS; implied by --tlsverify
  14.       --tlscacert string   Trust certs signed only by this CA (default "/home/fcq/.docker/ca.pem")
  15.       --tlscert string     Path to TLS certificate file (default "/home/fcq/.docker/cert.pem")
  16.       --tlskey string      Path to TLS key file (default "/home/fcq/.docker/key.pem")
  17.       --tlsverify          Use TLS and verify the remote
  18.   -v, --version            Print version information and quit
  20. Management Commands:
  21.   builder     Manage builds
  22.   config      Manage Docker configs
  23.   container   Manage containers
  24.   context     Manage contexts
  25.   engine      Manage the docker engine
  26.   image       Manage images
  27.   network     Manage networks
  28.   node        Manage Swarm nodes
  29.   plugin      Manage plugins
  30.   secret      Manage Docker secrets
  31.   service     Manage services
  32.   stack       Manage Docker stacks
  33.   swarm       Manage Swarm
  34.   system      Manage Docker
  35.   trust       Manage trust on Docker images
  36.   volume      Manage volumes
  38. Commands:
  39.   attach      Attach local standard input, output, and error streams to a running container
  40.   build       Build an image from a Dockerfile
  41.   commit      Create a new image from a container's changes
  42.   cp          Copy files/folders between a container and the local filesystem
  43.   create      Create a new container
  44.   deploy      Deploy a new stack or update an existing stack
  45.   diff        Inspect changes to files or directories on a container's filesystem
  46.   events      Get real time events from the server
  47.   exec        Run a command in a running container
  48.   export      Export a container's filesystem as a tar archive
  49.   history     Show the history of an image
  50.   images      List images
  51.   import      Import the contents from a tarball to create a filesystem image
  52.   info        Display system-wide information
  53.   inspect     Return low-level information on Docker objects
  54.   kill        Kill one or more running containers
  55.   load        Load an image from a tar archive or STDIN
  56.   login       Log in to a Docker registry
  57.   logout      Log out from a Docker registry
  58.   logs        Fetch the logs of a container
  59.   pause       Pause all processes within one or more containers
  60.   port        List port mappings or a specific mapping for the container
  61.   ps          List containers
  62.   pull        Pull an image or a repository from a registry
  63.   push        Push an image or a repository to a registry
  64.   rename      Rename a container
  65.   restart     Restart one or more containers
  66.   rm          Remove one or more containers
  67.   rmi         Remove one or more images
  68.   run         Run a command in a new container
  69.   save        Save one or more images to a tar archive (streamed to STDOUT by default)
  70.   search      Search the Docker Hub for images
  71.   start       Start one or more stopped containers
  72.   stats       Display a live stream of container(s) resource usage statistics
  73.   stop        Stop one or more running containers
  74.   tag         Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE
  75.   top         Display the running processes of a container
  76.   unpause     Unpause all processes within one or more containers
  77.   update      Update configuration of one or more containers
  78.   version     Show the Docker version information
  79.   wait        Block until one or more containers stop, then print their exit codes
  81. Run 'docker COMMAND --help' for more information on a command.

例子

  • 删除
    • 容器
  1. docker rm -f  容器名/ID
  3.  docker ps -a  #查看所有容器
  5.  docker rm -f `docker ps -a -q` # 删除所有容器
  1. - 镜像
  1. docker rmi -f  image_name/ID
  3. docker images #查看所有镜像
  5. docker rmi -f `docker images -q` # 删除所有的镜像

docker pull

  2. Usage:    docker pull [OPTIONS] NAME[:TAG|@DIGEST]
  4. Pull an image or a repository from a registry
  6. Options:
  7.   -a, --all-tags                Download all tagged images in the repository
  8.       --disable-content-trust   Skip image verification (default true)
  9.       --platform string         Set platform if server is multi-platform capable
  10.   -q, --quiet                   Suppress verbose output

docker run

  2. Usage:    docker run [OPTIONS] IMAGE [COMMAND] [ARG...]
  4. Run a command in a new container
  6. Options:
  7.       --add-host list                  Add a custom host-to-IP mapping (host:ip)
  8.   -a, --attach list                    Attach to STDIN, STDOUT or STDERR
  9.       --blkio-weight uint16            Block IO (relative weight), between 10 and 1000, or 0 to disable (default 0)
  10.       --blkio-weight-device list       Block IO weight (relative device weight) (default [])
  11.       --cap-add list                   Add Linux capabilities
  12.       --cap-drop list                  Drop Linux capabilities
  13.       --cgroup-parent string           Optional parent cgroup for the container
  14.       --cidfile string                 Write the container ID to the file
  15.       --cpu-count int                  CPU count (Windows only)
  16.       --cpu-percent int                CPU percent (Windows only)
  17.       --cpu-period int                 Limit CPU CFS (Completely Fair Scheduler) period
  18.       --cpu-quota int                  Limit CPU CFS (Completely Fair Scheduler) quota
  19.       --cpu-rt-period int              Limit CPU real-time period in microseconds
  20.       --cpu-rt-runtime int             Limit CPU real-time runtime in microseconds
  21.   -c, --cpu-shares int                 CPU shares (relative weight)
  22.       --cpus decimal                   Number of CPUs    和--gpus  功能类似
  23.       --cpuset-cpus string             CPUs in which to allow execution (0-3, 0,1)
  24.       --cpuset-mems string             MEMs in which to allow execution (0-3, 0,1)
  25.   -d, --detach                         Run container in background and print container ID
  26.       --detach-keys string             Override the key sequence for detaching a container
  27.       --device list                    Add a host device to the container
  28.       --device-cgroup-rule list        Add a rule to the cgroup allowed devices list
  29.       --device-read-bps list           Limit read rate (bytes per second) from a device (default [])
  30.       --device-read-iops list          Limit read rate (IO per second) from a device (default [])
  31.       --device-write-bps list          Limit write rate (bytes per second) to a device (default [])
  32.       --device-write-iops list         Limit write rate (IO per second) to a device (default [])
  33.       --disable-content-trust          Skip image verification (default true)
  34.       --dns list                       Set custom DNS servers
  35.       --dns-option list                Set DNS options
  36.       --dns-search list                Set custom DNS search domains
  37.       --domainname string              Container NIS domain name
  38.       --entrypoint string              Overwrite the default ENTRYPOINT of the image
  39.   -e, --env list                       Set environment variables
  40.       --env-file list                  Read in a file of environment variables
  41.       --expose list                    Expose a port or a range of ports
  42.       --gpus gpu-request               GPU devices to add to the container ('all' to pass all GPUs)    gpu设备('all', '0','1'),
  43.       --group-add list                 Add additional groups to join
  44.       --health-cmd string              Command to run to check health
  45.       --health-interval duration       Time between running the check (ms|s|m|h) (default 0s)
  46.       --health-retries int             Consecutive failures needed to report unhealthy
  47.       --health-start-period duration   Start period for the container to initialize before starting health-retries countdown (ms|s|m|h) (default 0s)
  48.       --health-timeout duration        Maximum time to allow one check to run (ms|s|m|h) (default 0s)
  49.       --help                           Print usage
  50.   -h, --hostname string                Container host name
  51.       --init                           Run an init inside the container that forwards signals and reaps processes
  52.   -i, --interactive                    Keep STDIN open even if not attached
  53.       --io-maxbandwidth bytes          Maximum IO bandwidth limit for the system drive (Windows only)
  54.       --io-maxiops uint                Maximum IOps limit for the system drive (Windows only)
  55.       --ip string                      IPv4 address (e.g., 172.30.100.104)
  56.       --ip6 string                     IPv6 address (e.g., 2001:db8::33)
  57.       --ipc string                     IPC mode to use
  58.       --isolation string               Container isolation technology
  59.       --kernel-memory bytes            Kernel memory limit
  60.   -l, --label list                     Set meta data on a container
  61.       --label-file list                Read in a line delimited file of labels
  62.       --link list                      Add link to another container
  63.       --link-local-ip list             Container IPv4/IPv6 link-local addresses
  64.       --log-driver string              Logging driver for the container
  65.       --log-opt list                   Log driver options
  66.       --mac-address string             Container MAC address (e.g., 92:d0:c6:0a:29:33)
  67.   -m, --memory bytes                   Memory limit
  68.       --memory-reservation bytes       Memory soft limit
  69.       --memory-swap bytes              Swap limit equal to memory plus swap: '-1' to enable unlimited swap
  70.       --memory-swappiness int          Tune container memory swappiness (0 to 100) (default -1)
  71.       --mount mount                    Attach a filesystem mount to the container
  72.       --name string                    Assign a name to the container
  73.       --network network                Connect a container to a network
  74.       --network-alias list             Add network-scoped alias for the container
  75.       --no-healthcheck                 Disable any container-specified HEALTHCHECK
  76.       --oom-kill-disable               Disable OOM Killer
  77.       --oom-score-adj int              Tune host's OOM preferences (-1000 to 1000)
  78.       --pid string                     PID namespace to use
  79.       --pids-limit int                 Tune container pids limit (set -1 for unlimited)
  80.       --platform string                Set platform if server is multi-platform capable
  81.       --privileged                     Give extended privileges to this container
  82.   -p, --publish list                   Publish a container's port(s) to the host   
  83.   -P, --publish-all                    Publish all exposed ports to random ports   ('端口映射')
  84.       --read-only                      Mount the container's root filesystem as read only
  85.       --restart string                 Restart policy to apply when a container exits (default "no")
  86.       --rm                             Automatically remove the container when it exits
  87.       --runtime string                 Runtime to use for this container
  88.       --security-opt list              Security Options
  89.       --shm-size bytes                 Size of /dev/shm
  90.       --sig-proxy                      Proxy received signals to the process (default true)
  91.       --stop-signal string             Signal to stop a container (default "SIGTERM")
  92.       --stop-timeout int               Timeout (in seconds) to stop a container
  93.       --storage-opt list               Storage driver options for the container
  94.       --sysctl map                     Sysctl options (default map[])
  95.       --tmpfs list                     Mount a tmpfs directory
  96.   -t, --tty                            Allocate a pseudo-TTY
  97.       --ulimit ulimit                  Ulimit options (default [])
  98.   -u, --user string                    Username or UID (format: <name|uid>[:<group|gid>])
  99.       --userns string                  User namespace to use
  100.       --uts string                     UTS namespace to use
  101.   -v, --volume list                    Bind mount a volume     定义目录绑定
  102.       --volume-driver string           Optional volume driver for the container
  103.       --volumes-from list              Mount volumes from the specified container(s)
  104.   -w, --workdir string                 Working directory inside the container

例子

  • docker run -it -name container_name -v /to/path/local/:/to/path/container/ —gpus all image_name /bin/bash

docker exec

  2. Usage:    docker exec [OPTIONS] CONTAINER COMMAND [ARG...]
  4. Run a command in a running container
  6. Options:
  7.   -d, --detach               Detached mode: run command in the background
  8.       --detach-keys string   Override the key sequence for detaching a container
  9.   -e, --env list             Set environment variables
  10.   -i, --interactive          Keep STDIN open even if not attached
  11.       --privileged           Give extended privileges to the command
  12.   -t, --tty                  Allocate a pseudo-TTY
  13.   -u, --user string          Username or UID (format: <name|uid>[:<group|gid>])
  14.   -w, --workdir string       Working directory inside the container

例子

  • docker exec -it container_name /bin/bash

docker commit

docker commit :从容器创建一个新的镜像。

  2. Usage:    docker commit [OPTIONS] CONTAINER [REPOSITORY[:TAG]]
  4. Create a new image from a container's changes
  6. Options:
  7.   -a, --author string    Author (e.g., "John Hannibal Smith <hannibal@a-team.com>")
  8.   -c, --change list      Apply Dockerfile instruction to the created image
  9.   -m, --message string   Commit message
  10.   -p, --pause            Pause container during commit (default true)

例子

runoob@runoob:~$ docker commit -a “runoob.com” -m “my apache” a404c6c174a2 mymysql:v1