NAME¶

docker-commit - Create a new image from a container's changes

SYNOPSIS¶

docker commit [ -a|--author[=AUTHOR]] [ --help] [ -c|--change[= []]] [-m|--message [=MESSAGE]] [-p|--pause*[=*true]] CONTAINER [REPOSITORY[:TAG]]

DESCRIPTION¶

Using an existing container's name or ID you can create a new image.

OPTIONS¶

-a, --author=""
Author (e.g., "John Hannibal Smith ⟨hannibal@a-team.com⟩") -c , --change=[]
Apply specified Dockerfile instructions while committing the image
Supported Dockerfile instructions: ADD|CMD|ENTRYPOINT|ENV|EXPOSE|FROM|MAINTAINER|RUN|USER|LABEL|VOLUME|WORKDIR|COPY --help
Print usage statement -m, --message=""
Commit message -p, --pause=true|false
Pause container during commit. The default is true.

EXAMPLES¶

Creating a new image from an existing container¶

An existing Fedora based container has had Apache installed while running in interactive mode with the bash shell. Apache is also running. To create a new image run docker ps to find the container's ID and then run:

Apply specified Dockerfile instructions while committing the image¶

If an existing container was created without the DEBUG environment variable set to "true", you can create a new image based on that container by first getting the container's ID with docker ps and then running:

HISTORY¶

April 2014, Originally compiled by William Henry (whenry at redhat dot com) based on docker.com source material and in June 2014, updated by Sven Dowideit ⟨SvenDowideit@home.org.au⟩ July 2014, updated by Sven Dowideit ⟨SvenDowideit@home.org.au⟩ Oct 2014, updated by Daniel, Dao Quang Minh