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- :title: Run Command
- :description: Run a command in a new container
- :keywords: run, container, docker, documentation
- ===========================================
- ``run`` -- Run a command in a new container
- ===========================================
- ::
- Usage: docker run [OPTIONS] IMAGE [COMMAND] [ARG...]
- Run a command in a new container
- -a=map[]: Attach to stdin, stdout or stderr.
- -c=0: CPU shares (relative weight)
- -cidfile="": Write the container ID to the file
- -d=false: Detached mode: Run container in the background, print new container id
- -e=[]: Set environment variables
- -h="": Container host name
- -i=false: Keep stdin open even if not attached
- -m=0: Memory limit (in bytes)
- -n=true: Enable networking for this container
- -p=[]: Map a network port to the container
- -t=false: Allocate a pseudo-tty
- -u="": Username or UID
- -d=[]: Set custom dns servers for the container
- -v=[]: Create a bind mount with: [host-dir]:[container-dir]:[rw|ro]. If "host-dir" is missing, then docker creates a new volume.
- -volumes-from="": Mount all volumes from the given container.
- -entrypoint="": Overwrite the default entrypoint set by the image.
- Examples
- --------
- .. code-block:: bash
- docker run -cidfile /tmp/docker_test.cid ubuntu echo "test"
- | This will create a container and print "test" to the console. The cidfile flag makes docker attempt to create a new file and write the container ID to it. If the file exists already, docker will return an error. Docker will close this file when docker run exits.
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