[users at bb.net] GerritChangeSource is not triggering a build

[Xuo Guoto]

Hello all,

New user of BB trying to configure BB with Gerrit here. 

tl;dr

Using docs/examples/git_gerrit.cfg as a guide, tried to configure BB with Gerrit, but GerritChangeSource is not showing any events, nor triggering the build.

Longer version:

I have setup BB with a sample repository with an one line build step which just says echo as in:

factory = util.BuildFactory()
factory.addStep(steps.Gerrit(repourl=gerrit_repo, mode="full",retry=[60,60],timeout=3600))
factory.addStep(steps.ShellCommand(command=["echo", "hello"],
                                   env={"PYTHONPATH": "."}))

c['builders'] = []
c['builders'].append(
    util.BuilderConfig(name="runtests",
      workernames=["example-worker"],
      factory=factory))


I have two schedules defined:

c['schedulers'] = []
c['schedulers'].append(schedulers.SingleBranchScheduler(
                            name="all",
                            change_filter=util.ChangeFilter(branch='master', filter_fn=change_code_review_plus_2),
                            treeStableTimer=None,
                            builderNames=["runtests"]))
c['schedulers'].append(schedulers.ForceScheduler(
                            name="force",
                            builderNames=["runtests"]))

When I run the test via force option its working fine and the build is getting successful.

My goal is to run it when there is a new push to Gerrit. So the change_source is as follows:

c['change_source'] = []
c['change_source'].append(changes.GerritChangeSource(gerrit_url, gerrit_user, debug=True,
                                                     handled_events=["patchset-created",
                                                                     "comment-added"]))

This is directly adapted from docs/examples/git_gerrit.cfg.

But even with debug set to True, I am not receiving any events in the logs, nor it's triggering any builds. I have a python program that connect to Gerrit with same username over ssh to post the events to slack, which is receiving events just fine. So I can confirm that the given user has permission to receive events from Gerrit.

Also I am getting following errors if I didn't supply the key using ssh-add before reconfig of build bot. So its atleast trying to connect to Gerrit

2023-09-01 19:05:23+0530 [-] GerritChangeSource:user at server:29418: starting 'gerrit stream-events'
2023-09-01 19:05:23+0530 [-] GerritChangeSource:user at server:29418 stderr: user at server: Permission denied (publickey).
2023-09-01 19:05:23+0530 [-] GerritChangeSource:user at server:29418: stream-events failed; restarting after 19s.

I am at a loss to identify what's wrong here, any help to get this moving will be much helpful. 

I have attached full master.cfg to this mail for reference.

Thanks

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