This fix tries to address the issue raised in docker/docker-29730
where a service with multiple published ports mapping to the same target
port (e.g., `--publish 5000:80 --publish 5001:80`) can't be allocated.
The reason for the issue is that, `getPortConfigKey` is used for both
allocated ports and configured (may or may not be allocated) ports.
However, `getPortConfigKey` will not take into consideration the
`PublishedPort` field, which actually could be different for different
allocated ports.
This fix saves a map of `portKey:portNum:portState`, instead of currently
used `portKey:portState` so that multiple published ports could be processed.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Upstream-commit: cb59bd0c5194f3f74cd405a87b562465219cad8a
Component: engine