Yong Tang 70a36f55d4 Labels set on the command line always override labels in Dockerfile ...

This fix tries to address the inconsistency in #22036 where labels
set on the command line will not override labels specified in
Dockerfile, but will override labels inherited from `FROM` images.

The fix add a LABEL with command line options at the end of the
processed Dockerfile so that command line options labels always
override the LABEL in Dockerfiles (or through `FROM`).

An integration test has been added for test cases specified in #22036.

This fix fixes #22036.

NOTE: Some changes are from #22266 (@tiborvass).

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Upstream-commit: 5844736c14b29860ea03b040e9a052e59ad75bfc
Component: engine

2016-04-23 18:49:17 -07:00

components/engine

Labels set on the command line always override labels in Dockerfile

2016-04-23 18:49:17 -07:00

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