mirror of https://github.com/docker/cli.git
201 lines
39 KiB
Markdown
201 lines
39 KiB
Markdown
# create
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<!---MARKER_GEN_START-->
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Create a new container
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### Aliases
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`docker container create`, `docker create`
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### Options
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| Name | Type | Default | Description |
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|:--------------------------|:--------------|:----------|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| `--add-host` | `list` | | Add a custom host-to-IP mapping (host:ip) |
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| `--annotation` | `map` | `map[]` | Add an annotation to the container (passed through to the OCI runtime) |
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| `-a`, `--attach` | `list` | | Attach to STDIN, STDOUT or STDERR |
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| `--blkio-weight` | `uint16` | `0` | Block IO (relative weight), between 10 and 1000, or 0 to disable (default 0) |
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| `--blkio-weight-device` | `list` | | Block IO weight (relative device weight) |
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| `--cap-add` | `list` | | Add Linux capabilities |
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| `--cap-drop` | `list` | | Drop Linux capabilities |
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| `--cgroup-parent` | `string` | | Optional parent cgroup for the container |
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| `--cgroupns` | `string` | | Cgroup namespace to use (host\|private)<br>'host': Run the container in the Docker host's cgroup namespace<br>'private': Run the container in its own private cgroup namespace<br>'': Use the cgroup namespace as configured by the<br> default-cgroupns-mode option on the daemon (default) |
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| `--cidfile` | `string` | | Write the container ID to the file |
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| `--cpu-count` | `int64` | `0` | CPU count (Windows only) |
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| `--cpu-percent` | `int64` | `0` | CPU percent (Windows only) |
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| `--cpu-period` | `int64` | `0` | Limit CPU CFS (Completely Fair Scheduler) period |
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| `--cpu-quota` | `int64` | `0` | Limit CPU CFS (Completely Fair Scheduler) quota |
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| `--cpu-rt-period` | `int64` | `0` | Limit CPU real-time period in microseconds |
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| `--cpu-rt-runtime` | `int64` | `0` | Limit CPU real-time runtime in microseconds |
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| `-c`, `--cpu-shares` | `int64` | `0` | CPU shares (relative weight) |
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| `--cpus` | `decimal` | | Number of CPUs |
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| `--cpuset-cpus` | `string` | | CPUs in which to allow execution (0-3, 0,1) |
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| `--cpuset-mems` | `string` | | MEMs in which to allow execution (0-3, 0,1) |
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| `--device` | `list` | | Add a host device to the container |
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| `--device-cgroup-rule` | `list` | | Add a rule to the cgroup allowed devices list |
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| `--device-read-bps` | `list` | | Limit read rate (bytes per second) from a device |
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| `--device-read-iops` | `list` | | Limit read rate (IO per second) from a device |
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| `--device-write-bps` | `list` | | Limit write rate (bytes per second) to a device |
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| `--device-write-iops` | `list` | | Limit write rate (IO per second) to a device |
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| `--disable-content-trust` | | | Skip image verification |
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| `--dns` | `list` | | Set custom DNS servers |
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| `--dns-option` | `list` | | Set DNS options |
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| `--dns-search` | `list` | | Set custom DNS search domains |
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| `--domainname` | `string` | | Container NIS domain name |
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| `--entrypoint` | `string` | | Overwrite the default ENTRYPOINT of the image |
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| `-e`, `--env` | `list` | | Set environment variables |
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| `--env-file` | `list` | | Read in a file of environment variables |
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| `--expose` | `list` | | Expose a port or a range of ports |
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| `--gpus` | `gpu-request` | | GPU devices to add to the container ('all' to pass all GPUs) |
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| `--group-add` | `list` | | Add additional groups to join |
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| `--health-cmd` | `string` | | Command to run to check health |
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| `--health-interval` | `duration` | `0s` | Time between running the check (ms\|s\|m\|h) (default 0s) |
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| `--health-retries` | `int` | `0` | Consecutive failures needed to report unhealthy |
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| `--health-start-interval` | `duration` | `0s` | Time between running the check during the start period (ms\|s\|m\|h) (default 0s) |
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| `--health-start-period` | `duration` | `0s` | Start period for the container to initialize before starting health-retries countdown (ms\|s\|m\|h) (default 0s) |
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| `--health-timeout` | `duration` | `0s` | Maximum time to allow one check to run (ms\|s\|m\|h) (default 0s) |
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| `--help` | | | Print usage |
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| `-h`, `--hostname` | `string` | | Container host name |
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| `--init` | | | Run an init inside the container that forwards signals and reaps processes |
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| `-i`, `--interactive` | | | Keep STDIN open even if not attached |
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| `--io-maxbandwidth` | `bytes` | `0` | Maximum IO bandwidth limit for the system drive (Windows only) |
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| `--io-maxiops` | `uint64` | `0` | Maximum IOps limit for the system drive (Windows only) |
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| `--ip` | `string` | | IPv4 address (e.g., 172.30.100.104) |
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| `--ip6` | `string` | | IPv6 address (e.g., 2001:db8::33) |
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| `--ipc` | `string` | | IPC mode to use |
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| `--isolation` | `string` | | Container isolation technology |
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| `--kernel-memory` | `bytes` | `0` | Kernel memory limit |
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| `-l`, `--label` | `list` | | Set meta data on a container |
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| `--label-file` | `list` | | Read in a line delimited file of labels |
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| `--link` | `list` | | Add link to another container |
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| `--link-local-ip` | `list` | | Container IPv4/IPv6 link-local addresses |
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| `--log-driver` | `string` | | Logging driver for the container |
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| `--log-opt` | `list` | | Log driver options |
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| `--mac-address` | `string` | | Container MAC address (e.g., 92:d0:c6:0a:29:33) |
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| `-m`, `--memory` | `bytes` | `0` | Memory limit |
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| `--memory-reservation` | `bytes` | `0` | Memory soft limit |
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| `--memory-swap` | `bytes` | `0` | Swap limit equal to memory plus swap: '-1' to enable unlimited swap |
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| `--memory-swappiness` | `int64` | `-1` | Tune container memory swappiness (0 to 100) |
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| `--mount` | `mount` | | Attach a filesystem mount to the container |
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| `--name` | `string` | | Assign a name to the container |
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| `--network` | `network` | | Connect a container to a network |
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| `--network-alias` | `list` | | Add network-scoped alias for the container |
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| `--no-healthcheck` | | | Disable any container-specified HEALTHCHECK |
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| `--oom-kill-disable` | | | Disable OOM Killer |
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| `--oom-score-adj` | `int` | `0` | Tune host's OOM preferences (-1000 to 1000) |
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| `--pid` | `string` | | PID namespace to use |
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| `--pids-limit` | `int64` | `0` | Tune container pids limit (set -1 for unlimited) |
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| `--platform` | `string` | | Set platform if server is multi-platform capable |
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| `--privileged` | | | Give extended privileges to this container |
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| `-p`, `--publish` | `list` | | Publish a container's port(s) to the host |
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| `-P`, `--publish-all` | | | Publish all exposed ports to random ports |
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| `--pull` | `string` | `missing` | Pull image before creating (`always`, `\|missing`, `never`) |
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| `-q`, `--quiet` | | | Suppress the pull output |
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| `--read-only` | | | Mount the container's root filesystem as read only |
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| `--restart` | `string` | `no` | Restart policy to apply when a container exits |
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| `--rm` | | | Automatically remove the container when it exits |
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| `--runtime` | `string` | | Runtime to use for this container |
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| `--security-opt` | `list` | | Security Options |
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| `--shm-size` | `bytes` | `0` | Size of /dev/shm |
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| `--stop-signal` | `string` | | Signal to stop the container |
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| `--stop-timeout` | `int` | `0` | Timeout (in seconds) to stop a container |
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| `--storage-opt` | `list` | | Storage driver options for the container |
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| `--sysctl` | `map` | `map[]` | Sysctl options |
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| `--tmpfs` | `list` | | Mount a tmpfs directory |
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| `-t`, `--tty` | | | Allocate a pseudo-TTY |
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| `--ulimit` | `ulimit` | | Ulimit options |
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| `-u`, `--user` | `string` | | Username or UID (format: <name\|uid>[:<group\|gid>]) |
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| `--userns` | `string` | | User namespace to use |
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| `--uts` | `string` | | UTS namespace to use |
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| `-v`, `--volume` | `list` | | Bind mount a volume |
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| `--volume-driver` | `string` | | Optional volume driver for the container |
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| `--volumes-from` | `list` | | Mount volumes from the specified container(s) |
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| `-w`, `--workdir` | `string` | | Working directory inside the container |
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<!---MARKER_GEN_END-->
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## Description
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The `docker container create` (or shorthand: `docker create`) command creates a
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new container from the specified image, without starting it.
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When creating a container, the Docker daemon creates a writeable container layer
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over the specified image and prepares it for running the specified command. The
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container ID is then printed to `STDOUT`. This is similar to `docker run -d`
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except the container is never started. You can then use the `docker container start`
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(or shorthand: `docker start`) command to start the container at any point.
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This is useful when you want to set up a container configuration ahead of time
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so that it's ready to start when you need it. The initial status of the
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new container is `created`.
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The `docker create` command shares most of its options with the `docker run`
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command (which performs a `docker create` before starting it). Refer to the
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[`docker run` command](run.md) section and the [Docker run reference](../run.md)
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for details on the available flags and options.
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## Examples
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### Create and start a container
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The following example creates an interactive container with a pseudo-TTY attached,
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then starts the container and attaches to it:
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```console
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$ docker container create -i -t --name mycontainer alpine
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6d8af538ec541dd581ebc2a24153a28329acb5268abe5ef868c1f1a261221752
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$ docker container start --attach -i mycontainer
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/ # echo hello world
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hello world
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```
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The above is the equivalent of a `docker run`:
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```console
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$ docker run -it --name mycontainer2 alpine
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/ # echo hello world
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hello world
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```
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### Initialize volumes
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Container volumes are initialized during the `docker create` phase
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(i.e., `docker run` too). For example, this allows you to `create` the `data`
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volume container, and then use it from another container:
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```console
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$ docker create -v /data --name data ubuntu
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240633dfbb98128fa77473d3d9018f6123b99c454b3251427ae190a7d951ad57
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$ docker run --rm --volumes-from data ubuntu ls -la /data
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total 8
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drwxr-xr-x 2 root root 4096 Dec 5 04:10 .
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drwxr-xr-x 48 root root 4096 Dec 5 04:11 ..
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```
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Similarly, `create` a host directory bind mounted volume container, which can
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then be used from the subsequent container:
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```console
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$ docker create -v /home/docker:/docker --name docker ubuntu
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9aa88c08f319cd1e4515c3c46b0de7cc9aa75e878357b1e96f91e2c773029f03
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$ docker run --rm --volumes-from docker ubuntu ls -la /docker
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total 20
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drwxr-sr-x 5 1000 staff 180 Dec 5 04:00 .
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drwxr-xr-x 48 root root 4096 Dec 5 04:13 ..
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-rw-rw-r-- 1 1000 staff 3833 Dec 5 04:01 .ash_history
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-rw-r--r-- 1 1000 staff 446 Nov 28 11:51 .ashrc
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-rw-r--r-- 1 1000 staff 25 Dec 5 04:00 .gitconfig
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drwxr-sr-x 3 1000 staff 60 Dec 1 03:28 .local
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-rw-r--r-- 1 1000 staff 920 Nov 28 11:51 .profile
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drwx--S--- 2 1000 staff 460 Dec 5 00:51 .ssh
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drwxr-xr-x 32 1000 staff 1140 Dec 5 04:01 docker
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```
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