SCM Poll fails using pipeline

[Nick Witkowski]

Hi,

We're running Jenkins ver. 1.609.3 and I have a pipeline job that registers for polling.

Looking at the "Git Polling Log" I see a permission denied error:

Started on Apr 22, 2016 7:06:00 AM

Using strategy: Default

[poll] Last Built Revision: Revision 256109511639dade5d95c561e54fffcc0e263cb0 (refs/remotes/origin/work/cascade)

 > git --version # timeout=10

 > git ls-remote -h git@mygithub:ORG/project.git # timeout=10

ERROR: polling failed in /app/jenkins/workspace/project-work-cascade-continuous on ab3-centos7-01

hudson.util.IOException2: hudson.plugins.git.GitException: Command "git ls-remote -h git@mygithub:ORG/project.git" returned status code 128:

stdout: 

stderr: Permission denied (publickey).

fatal: The remote end hung up unexpectedly

	at hudson.plugins.git.GitSCM.compareRemoteRevisionWith(GitSCM.java:529)

	at org.jenkinsci.plugins.workflow.job.WorkflowJob.poll(WorkflowJob.java:531)

	at hudson.triggers.SCMTrigger$Runner.runPolling(SCMTrigger.java:510)

	at hudson.triggers.SCMTrigger$Runner.run(SCMTrigger.java:539)

	at hudson.util.SequentialExecutionQueue$QueueEntry.run(SequentialExecutionQueue.java:118)

	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)

	at java.util.concurrent.FutureTask.run(FutureTask.java:262)

	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

	at java.lang.Thread.run(Thread.java:744)

Caused by: hudson.plugins.git.GitException: Command "git ls-remote -h git@mygithub:ORG/project.git" returned status code 128:

stdout: 

stderr: Permission denied (publickey).

fatal: The remote end hung up unexpectedly

	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:1640)

	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:1388)

	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:1282)

	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:1273)

	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.getHeadRev(CliGitAPIImpl.java:2376)

	at hudson.plugins.git.GitSCM.compareRemoteRevisionWithImpl(GitSCM.java:583)

	at hudson.plugins.git.GitSCM.compareRemoteRevisionWith(GitSCM.java:527)

	... 9 more

Using strategy: Default

[poll] Last Built Revision: Revision 256109511639dade5d95c561e54fffcc0e263cb0 (refs/remotes/origin/work/cascade)

 > git --version # timeout=10

 > git ls-remote -h git@mygithub:ORG/project.git # timeout=10

Normally on job where the polling succeeds (a non pipeline job) I'd expect the following:

Started on Apr 22, 2016 7:02:00 AM

Using strategy: Default

[poll] Last Built Revision: Revision 9e4a511217a2af22478bf1f3959b449d30587981 (refs/remotes/origin/master)

using GIT_SSH to set credentials 

 > git --version # timeout=10

 > git ls-remote -h git@mygithub:ORG/project.git # timeout=10

Found 113 remote heads on git@mygithub:ORG/project.git

[poll] Latest remote head revision on refs/heads/master is: 9e4a511217a2af22478bf1f3959b449d30587981 - already built by 398

Done. Took 0.36 sec

No changes

The main difference is that the job that succeeds uses GIT_SSH to set the credentials. How do I set the GIT_SSH credentials for a pipeline script so that polling works?

Thanks,

Nick

[Nick Witkowski]

Never mind. I had the wrong/invalide credentials string the the git scm step.