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--help and help are successful commands so output should not go to error.
QE teams have requested this change, also users doing docker help | less
or docker run --help | less would expect this to work.
Usage statement should only be printed when the user asks for it.
Errors should print error message and then suggest the docker COMMAND --help
command to see usage information.
The current behaviour causes the user to have to search for the error message
and sometimes scrolls right off the screen. For example a error on a
"docker run" command is very difficult to diagnose.
Finally erros should always exit with a non 0 exit code, if the user
makes a CLI error.
Docker-DCO-1.1-Signed-off-by: Dan Walsh <dwalsh@redhat.com> (github: rhatdan)
45 lines
1.3 KiB
Markdown
45 lines
1.3 KiB
Markdown
% DOCKER(1) Docker User Manuals
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% Docker Community
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% JUNE 2014
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# NAME
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docker-commit - Create a new image from a container's changes
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# SYNOPSIS
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**docker commit**
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[**-a**|**--author**[=*AUTHOR*]]
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[**--help**]
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[**-m**|**--message**[=*MESSAGE*]]
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[**-p**|**--pause**[=*true*]]
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CONTAINER [REPOSITORY[:TAG]]
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# DESCRIPTION
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Using an existing container's name or ID you can create a new image.
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# OPTIONS
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**-a**, **--author**=""
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Author (e.g., "John Hannibal Smith <hannibal@a-team.com>")
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**--help**
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Print usage statement
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**-m**, **--message**=""
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Commit message
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**-p**, **--pause**=*true*|*false*
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Pause container during commit. The default is *true*.
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# EXAMPLES
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## Creating a new image from an existing container
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An existing Fedora based container has had Apache installed while running
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in interactive mode with the bash shell. Apache is also running. To
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create a new image run docker ps to find the container's ID and then run:
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# docker commit -m="Added Apache to Fedora base image" \
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-a="A D Ministrator" 98bd7fc99854 fedora/fedora_httpd:20
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# HISTORY
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April 2014, Originally compiled by William Henry (whenry at redhat dot com)
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based on docker.com source material and in
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June 2014, updated by Sven Dowideit <SvenDowideit@home.org.au>
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July 2014, updated by Sven Dowideit <SvenDowideit@home.org.au>
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