commit Usage: docker commit [OPTIONS] CONTAINER [REPOSITORY[:TAG]] Create a new image from a container's changes -a, --author="" Author (e.g., "John Hannibal Smith <hannibal@a-team.com>") -c, --change=[] Apply specified Dockerfile instructions while committing the image --help Print usage -m, --message="" Commit message -p, --pause=true Pause container during commit It can be useful to commit a container’s file changes or settings into a new image.

images Usage: docker images [OPTIONS] [REPOSITORY[:TAG]] List images -a, --all Show all images (default hides intermediate images) --digests Show digests -f, --filter=[] Filter output based on conditions provided --help Print usage --no-trunc Don't truncate output -q, --quiet Only show numeric IDs The default docker images will show all top level images, their repository and tags, and their size. Docker images have inter

Frequently Asked Questions (FAQ) If you don’t see your question here, feel free to submit new ones to docs@docker.com. Or, you can fork the repo and contribute them yourself by editing the documentation sources. How much does Engine cost? Docker Engine is 100% free. It is open source, so you can use it without paying. What open source license are you using? We are using the Apache License Version 2.0, see it here: https://github.com/docker/docker/blob/master/LICENSE Does Docker run on Mac OS X

start Usage: docker-machine start [arg...] Start a machine Description: Argument(s) are one or more machine names. For example: $ docker-machine start dev Starting VM...

Seccomp security profiles for Docker Secure computing mode (Seccomp) is a Linux kernel feature. You can use it to restrict the actions available within the container. The seccomp() system call operates on the seccomp state of the calling process. You can use this feature to restrict your application’s access. This feature is available only if Docker has been built with seccomp and the kernel is configured with CONFIG_SECCOMP enabled. To check if your kernel supports seccomp: $ cat /boot/config-

volume create Usage: docker volume create [OPTIONS] Create a volume -d, --driver=local Specify volume driver name --help Print usage --label=[] Set metadata for a volume --name= Specify volume name -o, --opt=map[] Set driver specific options Creates a new volume that containers can consume and store data in. If a name is not specified, Docker generates a random name. You create a volume and then configure the container to use it, for

pause Usage: docker pause [OPTIONS] CONTAINER [CONTAINER...] Pause all processes within a container --help Print usage The docker pause command uses the cgroups freezer to suspend all processes in a container. Traditionally, when suspending a process the SIGSTOP signal is used, which is observable by the process being suspended. With the cgroups freezer the process is unaware, and unable to capture, that it is being suspended, and subsequently resumed. See the cgroups freezer docu

Docker Remote API client libraries These libraries make it easier to build applications on top of the Docker Remote API with various programming languages. They have not been tested by the Docker maintainers for compatibility, so if you run into any issues, file them with the library maintainers. Language/Framework Name Repository C# Docker.DotNet https://github.com/ahmetalpbalkan/Docker.DotNet C++ lasote/docker_client https://github.com/lasote/docker_client Erlang erldocker https://github.com/

update Usage: docker update [OPTIONS] CONTAINER [CONTAINER...] Update configuration of one or more containers --help=false Print usage --blkio-weight=0 Block IO (relative weight), between 10 and 1000 --cpu-shares=0 CPU shares (relative weight) --cpu-period=0 Limit the CPU CFS (Completely Fair Scheduler) period --cpu-quota=0 Limit the CPU CFS (Completely Fair Scheduler) quota --cpuset-cpus="" CPUs in which to al

rmi Usage: docker rmi [OPTIONS] IMAGE [IMAGE...] Remove one or more images -f, --force Force removal of the image --help Print usage --no-prune Do not delete untagged parents You can remove an image using its short or long ID, its tag, or its digest. If an image has one or more tag referencing it, you must remove all of them before the image is removed. Digest references are removed automatically when an image is removed by tag. $ docker images REPOSITO