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The goal is to make it more clear this will give you the container id after run completes. Since stdout is now standard on run, "docker run -d" is the best (or only) way to get the container ID returned from docker after a plain run, but the description (help) does not hint any such thing. Upstream-commit: 5dc86d7bca17c2996264a18cc26f06d30e532588 Component: engine
1.6 KiB
1.6 KiB
- 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
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.