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Implement build cancellation

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Add the capability to cancel the build by disconnecting the client.

This adds a `cancelled` channel which is used to signal that a build
should halt. The build is halted by sending a Kill signal and noticing
that the cancellation channel is closed.

This first pass implementation does not allow cancellation during a
pull, but that will come in a subsequent PR.

* Add documentation of cancellation to cli and API

* Protect job cancellation with sync.Once

* Add TestBuildCancelationKillsSleep

* Add test case for build cancellation of RUN statements.

Signed-off-by: Peter Waller <p@pwaller.net>
This commit is contained in:
Peter Waller
2015-03-10 22:10:00 +00:00
committed by Tibor Vass
parent f672cb24cb
commit e9942aeb8a
1 changed files with 6 additions and 0 deletions
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docs/sources/reference/commandline/cli.md
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@@ -599,6 +599,12 @@ in cases where the same set of files are used for multiple builds. The path
must be to a file within the build context. If a relative path is specified
then it must to be relative to the current directory.
If the Docker client loses connection to the daemon, the build is canceled.
This happens if you interrupt the Docker client with `ctrl-c` or if the Docker
client is killed for any reason.
> **Note:** Currently only the "run" phase of the build can be canceled until
> pull cancelation is implemented).
See also: