TCP Slave Agent Port Disabled by Default in 2.0?

[Karl Davis]

Howdy all,

As I mentioned in my last post, I'm trying to automate the setup of Jenkins 2.0. I've gotten a bit further, but now I'm running into a new problem: 'Manage Jenkins > Configure Global Security > TCP port for JNLP agents' is set to "Disabled" in new installs, by default. Further, it doesn't seem to be honoring the 'jenkins.model.Jenkins.slaveAgentPort' system property (as specified on Features controlled by system properties).

Is this a bug, or is this just no longer supported?

Verifying that I have the property set via Bash:

ubuntu@ip-172-31-53-116:~$ ps aux|grep java

jenkins  14419  0.0  0.0  18744   604 ?        S    21:27   0:00 /usr/bin/daemon --name=jenkins --inherit --env=JENKINS_HOME=/var/lib/jenkins --output=/var/log/jenkins/jenkins.log --pidfile=/var/run/jenkins/jenkins.pid -- /usr/bin/java -Djava.awt.headless=true -Djenkins.install.runSetupWizard=false -Djenkins.model.Jenkins.slaveAgentPort=16123 -jar /usr/share/jenkins/jenkins.war --webroot=/var/cache/jenkins/war --httpPort=8080 --prefix=/jenkins

jenkins  14420  6.4 12.0 2476940 488960 ?      Sl   21:27   0:14 /usr/bin/java -Djava.awt.headless=true -Djenkins.install.runSetupWizard=false -Djenkins.model.Jenkins.slaveAgentPort=16123 -jar /usr/share/jenkins/jenkins.war --webroot=/var/cache/jenkins/war --httpPort=8080 --prefix=/jenkins

ubuntu   16387  0.0  0.0  10460   936 pts/0    S+   21:31   0:00 grep --color=auto java

Verifying that the property is being ignored via the script console:

println(Jenkins.instance.slaveAgentPort)

-1

Thanks for the help!

Karl M. Davis

[Daniel Beck]

On 08.04.2016, at 23:41, Karl Davis <ka...@davisonlinehome.name> wrote:

> Is this a bug, or is this just no longer supported?

This is part of the safe(r) defaults. Many installations don't need this, so we default to disabled.

FWIW I'm open to changing this again, or perhaps make it part of the initial setup (which will not help the automation case, but still), based on user feedback.

[Mike Albert]

For anyone else who stumbles upon this post via a Google Search, Karl found a solution and it can be found in his repo below:

https://github.com/karlmdavis/ansible-jenkins2

Thanks Karl!