-
Bug
-
Resolution: Fixed
-
Minor
-
Jenkins 2.286 freshly upgraded from Jenkins 2.285
Test 2.285 instance has been upgraded to 2.286 (switching jenkins/jenkins:2.285-centos to jenkins/jenkins:2.286-centos container)
There is one permanent agent (apart from "master") and Kubernetes cloud configured. We never build on master node and we use declarative pipelines exclusively.
After 2.285 -> 2.286 upgrade I was greeted with the following admin warning:
You should set up distributed builds. Building on the controller node can be a security issue. See the documentation.
"Manage" button takes be to the master node configuration but it is not clear what to do there.
| Test | Result |
|---|---|
| !Main.isDevelopmentMode | true |
| Jenkins.get().getNumExecutors() | 1 |
| Jenkins.get().clouds.isEmpty() | false |
| Jenkins.get().getNodes().isEmpty() | false |
- links to
[JENKINS-65291] "You should set up distributed builds. Building on the controller node can be a security issue. " with agents and cloud configured
Can we make this clear in the message? It was confusing because I thought *I have* configured distributed builds; I have not disabled the master completely.
Good point, I think the actual wording of the message changed slightly since I asked for both monitors to share one message to appear as one.
This is not obvious, either, I was poking around looking for "Disable" or "Delete" button on "master", no luck
Updated the wiki page to hopefully help a bit with that.
Big thanks to danielbeck and others involved in taking care of this little thing so quickly! It was a pleasure to work with you on this issue.
So, I have figured it out that the issue was the number of executors on the master node was 1.
I have done the following:
The linked doc says, among others, you should generally configure the master to have no executor
Can we make this clear in the message? It was confusing because I thought *I have* configured distributed builds; I have not disabled the master completely. (This is not obvious, either, I was poking around looking for "Disable" or "Delete" button on "master", no luck).