github.com/endocode/docker@v1.4.2-0.20160113120958-46eb4700391e/docs/reference/commandline/create.md (about) 1 <!--[metadata]> 2 +++ 3 title = "create" 4 description = "The create command description and usage" 5 keywords = ["docker, create, container"] 6 [menu.main] 7 parent = "smn_cli" 8 +++ 9 <![end-metadata]--> 10 11 # create 12 13 Creates a new container. 14 15 Usage: docker create [OPTIONS] IMAGE [COMMAND] [ARG...] 16 17 Create a new container 18 19 -a, --attach=[] Attach to STDIN, STDOUT or STDERR 20 --add-host=[] Add a custom host-to-IP mapping (host:ip) 21 --blkio-weight=0 Block IO weight (relative weight) 22 --blkio-weight-device=[] Block IO weight (relative device weight, format: `DEVICE_NAME:WEIGHT`) 23 --cpu-shares=0 CPU shares (relative weight) 24 --cap-add=[] Add Linux capabilities 25 --cap-drop=[] Drop Linux capabilities 26 --cgroup-parent="" Optional parent cgroup for the container 27 --cidfile="" Write the container ID to the file 28 --cpu-period=0 Limit CPU CFS (Completely Fair Scheduler) period 29 --cpu-quota=0 Limit CPU CFS (Completely Fair Scheduler) quota 30 --cpuset-cpus="" CPUs in which to allow execution (0-3, 0,1) 31 --cpuset-mems="" Memory nodes (MEMs) in which to allow execution (0-3, 0,1) 32 --device=[] Add a host device to the container 33 --device-read-bps=[] Limit read rate (bytes per second) from a device (e.g., --device-read-bps=/dev/sda:1mb) 34 --device-read-iops=[] Limit read rate (IO per second) from a device (e.g., --device-read-iops=/dev/sda:1000) 35 --device-write-bps=[] Limit write rate (bytes per second) to a device (e.g., --device-write-bps=/dev/sda:1mb) 36 --device-write-iops=[] Limit write rate (IO per second) to a device (e.g., --device-write-iops=/dev/sda:1000) 37 --disable-content-trust=true Skip image verification 38 --dns=[] Set custom DNS servers 39 --dns-opt=[] Set custom DNS options 40 --dns-search=[] Set custom DNS search domains 41 -e, --env=[] Set environment variables 42 --entrypoint="" Overwrite the default ENTRYPOINT of the image 43 --env-file=[] Read in a file of environment variables 44 --expose=[] Expose a port or a range of ports 45 --group-add=[] Add additional groups to join 46 -h, --hostname="" Container host name 47 --help Print usage 48 -i, --interactive Keep STDIN open even if not attached 49 --ipc="" IPC namespace to use 50 --isolation="" Container isolation technology 51 --kernel-memory="" Kernel memory limit 52 -l, --label=[] Set metadata on the container (e.g., --label=com.example.key=value) 53 --label-file=[] Read in a line delimited file of labels 54 --link=[] Add link to another container 55 --log-driver="" Logging driver for container 56 --log-opt=[] Log driver specific options 57 -m, --memory="" Memory limit 58 --mac-address="" Container MAC address (e.g. 92:d0:c6:0a:29:33) 59 --memory-reservation="" Memory soft limit 60 --memory-swap="" A positive integer equal to memory plus swap. Specify -1 to enable unlimited swap. 61 --memory-swappiness="" Tune a container's memory swappiness behavior. Accepts an integer between 0 and 100. 62 --name="" Assign a name to the container 63 --net="bridge" Connect a container to a network 64 'bridge': create a network stack on the default Docker bridge 65 'none': no networking 66 'container:<name|id>': reuse another container's network stack 67 'host': use the Docker host network stack 68 '<network-name>|<network-id>': connect to a user-defined network 69 --oom-kill-disable Whether to disable OOM Killer for the container or not 70 --oom-score-adj=0 Tune the host's OOM preferences for containers (accepts -1000 to 1000) 71 -P, --publish-all Publish all exposed ports to random ports 72 -p, --publish=[] Publish a container's port(s) to the host 73 --pid="" PID namespace to use 74 --privileged Give extended privileges to this container 75 --read-only Mount the container's root filesystem as read only 76 --restart="no" Restart policy (no, on-failure[:max-retry], always, unless-stopped) 77 --security-opt=[] Security options 78 --stop-signal="SIGTERM" Signal to stop a container 79 --shm-size=[] Size of `/dev/shm`. The format is `<number><unit>`. `number` must be greater than `0`. Unit is optional and can be `b` (bytes), `k` (kilobytes), `m` (megabytes), or `g` (gigabytes). If you omit the unit, the system uses bytes. If you omit the size entirely, the system uses `64m`. 80 -t, --tty Allocate a pseudo-TTY 81 -u, --user="" Username or UID 82 --ulimit=[] Ulimit options 83 --uts="" UTS namespace to use 84 -v, --volume=[host-src:]container-dest[:<options>] 85 Bind mount a volume. The comma-delimited 86 `options` are [rw|ro], [z|Z], or 87 [[r]shared|[r]slave|[r]private]. The 88 'host-src' is an absolute path or a name 89 value. 90 --volume-driver="" Container's volume driver 91 --volumes-from=[] Mount volumes from the specified container(s) 92 -w, --workdir="" Working directory inside the container 93 94 The `docker create` command creates a writeable container layer over the 95 specified image and prepares it for running the specified command. The 96 container ID is then printed to `STDOUT`. This is similar to `docker run -d` 97 except the container is never started. You can then use the 98 `docker start <container_id>` command to start the container at any point. 99 100 This is useful when you want to set up a container configuration ahead of time 101 so that it is ready to start when you need it. The initial status of the 102 new container is `created`. 103 104 Please see the [run command](run.md) section and the [Docker run reference](../run.md) for more details. 105 106 ## Examples 107 108 $ docker create -t -i fedora bash 109 6d8af538ec541dd581ebc2a24153a28329acb5268abe5ef868c1f1a261221752 110 $ docker start -a -i 6d8af538ec5 111 bash-4.2# 112 113 As of v1.4.0 container volumes are initialized during the `docker create` phase 114 (i.e., `docker run` too). For example, this allows you to `create` the `data` 115 volume container, and then use it from another container: 116 117 $ docker create -v /data --name data ubuntu 118 240633dfbb98128fa77473d3d9018f6123b99c454b3251427ae190a7d951ad57 119 $ docker run --rm --volumes-from data ubuntu ls -la /data 120 total 8 121 drwxr-xr-x 2 root root 4096 Dec 5 04:10 . 122 drwxr-xr-x 48 root root 4096 Dec 5 04:11 .. 123 124 Similarly, `create` a host directory bind mounted volume container, which can 125 then be used from the subsequent container: 126 127 $ docker create -v /home/docker:/docker --name docker ubuntu 128 9aa88c08f319cd1e4515c3c46b0de7cc9aa75e878357b1e96f91e2c773029f03 129 $ docker run --rm --volumes-from docker ubuntu ls -la /docker 130 total 20 131 drwxr-sr-x 5 1000 staff 180 Dec 5 04:00 . 132 drwxr-xr-x 48 root root 4096 Dec 5 04:13 .. 133 -rw-rw-r-- 1 1000 staff 3833 Dec 5 04:01 .ash_history 134 -rw-r--r-- 1 1000 staff 446 Nov 28 11:51 .ashrc 135 -rw-r--r-- 1 1000 staff 25 Dec 5 04:00 .gitconfig 136 drwxr-sr-x 3 1000 staff 60 Dec 1 03:28 .local 137 -rw-r--r-- 1 1000 staff 920 Nov 28 11:51 .profile 138 drwx--S--- 2 1000 staff 460 Dec 5 00:51 .ssh 139 drwxr-xr-x 32 1000 staff 1140 Dec 5 04:01 docker 140 141 ### Specify isolation technology for container (--isolation) 142 143 This option is useful in situations where you are running Docker containers on 144 Windows. The `--isolation=<value>` option sets a container's isolation 145 technology. On Linux, the only supported is the `default` option which uses 146 Linux namespaces. On Microsoft Windows, you can specify these values: 147 148 149 | Value | Description | 150 |-----------|---------------------------------------------------------------------------------------------------------------------------------------------------------------| 151 | `default` | Use the value specified by the Docker daemon's `--exec-opt` . If the `daemon` does not specify an isolation technology, Microsoft Windows uses `process` as its default value. | 152 | `process` | Namespace isolation only. | 153 | `hyperv` | Hyper-V hypervisor partition-based isolation. | 154 155 Specifying the `--isolation` flag without a value is the same as setting `--isolation="default"`.