[JENKINS-36441] - Always lost the plugins when using the docker image packaged by CWP

[LinuxSuRen]

I built the docker image by this config file. Then run it by the following command:
docker run -p 8080:8080 --rm -v /tmp/jenkins-data:/var/jenkins_home jenkinszh/jenkins-k8s:2.22

After Jenkins startup, I upgrade all the plugins. But I found out it's not working, all those plugins was not upgrade after Jenkins restart.

[LinuxSuRen]

Some problems happened when I start Jenkins by jenkins.war.

[oleg-nenashev]

This is a symptom of plugin bundling management changes in Jenkins 2.0. Please see https://issues.jenkins-ci.org/browse/JENKINS-36441 and jenkinsci/jenkins#2436 . The code is no longer mergeable, but in principle it can be recovered.

Nothing can be done on the Custom WAR Packager side for this use-case before Jenkins Core is fixed, unless you inject a custom plugin manager implementation into WAR as a lib

[LinuxSuRen]

@oleg-nenashev Thanks for providing the background.