Hi,
I'm facing an issue in a master/slave Jenkins setup. Version of master is
2.89.2, slaves are running Linux.
If a node is connected via the "Launch slave agent via SSH" method, everything
is working as expected.
When I use the "Launch agent via Java Web Start" method and use this command to
connect the node to the master:
java -jar agent.jar -jnlpUrl
https://MASTER/computer/SLAVENAME/slave-agent.jnlp -secret SECRET
the node is connected successfully to the master and jobs are being executed.
The problem arises when a second git repository is to be checked out during
build with this step in our build pipelines:
dir('keys') {
git url:
'[email protected]:ORG/REPO.git', credentialsId: 'MyCredentials'
}
‘MyCredentials’ is a private SSH key with username and passphrase to decrypt
the key, stored in the Jenkins master.
The build times out after waiting 10 minutes for the step to finish with no
relevant info (stack trace + exit code for SIGTERM + no stdout + no stderr) in
the build log. However, on the terminal where the agent.jar was started there
is this output:
May 02, 2018 2:25:05 PM hudson.remoting.jnlp.Main$CuiListener
status
INFO: Connected
Enter passphrase for key '/var/lib/jenkins/workspace/PROJECTNAME':
So it seems that when using the WebStart-method, something is wrong with the
stdin/stdout redirection. In the wiki
(https://wiki.jenkins.io/display/JENKINS/Distributed+builds) it says: “execute
the agent program like java -jar agent.jar, on the right computer, and have its
stdin/stdout connect to your script's stdin/stdout”. I’m not sure if I’m doing
something wrong because all examples for headless just run the java command as
shown above.
Any ideas if this is valid bug, I’m doing something wrong or that scenario is
currently just not supported?
Thanks!
Jannis Achstetter
Technical Engineer Mobility
Innovation & Technology Digitization
Industry Business
Schneider Electric Automation GmbH
D +49 9391 606 - 2897
E
[email protected]<mailto:[email protected]>
Schneiderplatz 1
97828 Marktheidenfeld
Germany
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