Some plugins could not be loaded due to unsatisfied dependencies. Fix these issues and restart Jenkins - jenkins

I was working on jenkins and working fine but i don't know what happened Jenkins shows following errors and no jobs are visible to me after that:
I am new in jenkins please help me to solve this.

As I understand the problem it could happened in cause of downgrading jenkins version or updating plugins "Pipeline: Node and Processes".
You need to restore previous jenkins version or downgrade plugin.
Additionally you can configure jenkins to get plugins' versions which fit your jenkins version in "Manage Jenkins" -> "Manage plugins" -> "Advanced" -> "Update site" and set the version you are currently using (for example https://updates.jenkins.io/stable-2.176/update-center.json)

Jenkins plugins are dependent on Jenkins LTS versions in use. Best way is while installing the Jenkins take latest (but stable) version of plugins.
Since you are using 1.176 version and trying to upgrade the plugins, the latest plugins do not support the older version of Jenkins (since Jenkins follow Parallel incremental development).
You can resolve the problem in 2 ways.
1. Downgrade the plugins and keep the LTS Jenkins version as it is. (not preferred solution since you will not be able to use latest functionality of the plugins and using old plugins is not secured).
Downgrade of plugins will also be suggested by Manage Jenkins --> Manage Plugins --> Installed
2. Upgrade Jenkins version (LTS 2.24x.x)
It is time taking option, but if you are heavely using jenkins for your work it is more suggested to upgrade the version. Besides new plugins have more secured and vast functionalities.
You can check the Changelog and can decided which version is good for you.
Take a reference of Upgrading Jenkins link.
To understand plugins and Jenkins LTS version dependency, use Jenkins wiki(Confluence Page).
e.g. Pipeline:Node and Processes plugin wiki indicates that for version 2.29 you need to have Jenkins version 1.150.1 or higher.
Note: Latest Jenkins version supports HTTPS instead of HTTP URL for advanced proxy options under Manager Jenkins.

Related

How to use "docker with pipeline" in Jenkins?

In Jenkins I would like to use docker with pipeline.
That documentation says:
Starting with Pipeline versions 2.5 and higher, Pipeline has built-in
support for interacting with Docker
Our Jenkins is using version 2.305 (2021-08-03) right now. The latest version of jenkins currently is 2.340 (2022-03-22).
How can I find the version of "Pipeline" used at our system?
I found quite a few installed plugins called "Pipeline: ..." with various versions. Which one should be 2.5 in order to make the docker feature available?
Oh, I found it:
https://plugins.jenkins.io/workflow-aggregator/
https://github.com/jenkinsci/workflow-aggregator-plugin/blob/master/CHANGELOG.md
The Plugin was simply not installed at all. (Only many of it's dependencies where installed independently.)

JobsDSL and Jenkins Versions

I am new to Jobs DSL and Jenkins. In our project we have lot of legacy Jenkins jobs DSL and we have a old jenkins probably 1.x. We are thinking to upgrade Jenkins to a new version of Jenkins. Have few question on the same.
If we upgrade Jenkins 2.x version does the old JobDSL work with
Jenkins 2.x ?
We could upgrade our legacy JobsDSL to use latest JobsDSL so that it will work with 2.x Jenkins? How breaking the changes of JobsDSL version -1.32 to latest version?
If we upgrade latest Jenkins and latest JobsDsl with that combo
work ?
Thanks!
It depends on how old your 1.x installation is. Updating from 1.651.3 to an early 2.x release should work.
A lot has changed since version 1.32. See https://github.com/jenkinsci/job-dsl-plugin/wiki/Migration. Basic stuff has not changed. But if the scripts are complex and using certain plugins with a high rate of change, then scripts may break.
Yes, but make sure to use an LTS verson of Jenkins. The latest LTS version is supported with the latest version of Job DSL.

Jenkins plugin upgrade

I have a large fleet of Jenkins instances running in a cluster, all having the LDAP plugin version 1.6 (Jenkins version 1.611). I want to fleet-upgrade the LDAP plugin version to 1.7 (to incorporate environment variables in my plugin configuration). How do I achieve this without manually uploading 1.7 version through UI for each Jenkins instance?
I tried writing a script which basically performs these operations for each Jenkins instance:
Replace the existing .jpi/.hpi file in $JENKINS_HOME/plugins for ldap plugin with the correct .hpi file (of the 1.7 version)
Edit config.xml under $JENKINS_HOME which has the version number
Safe restart Jenkins
It works fine till step 2 but as soon as I perform safe restart, Jenkins magically puts in the original .jpi/.hpi file (the 1.6 version file) back inside $JENKINS_HOME/plugins. Jenkins instance has the 1.6 plugin version again in the UI. Is there a better way to perform fleet plugin upgrades in general? I want to mention that I want the 1.7 plugin version, not the latest
How do I fix this? I even tried using curl (mentioned at https://stackoverflow.com/a/20848745/1746529) but didn't help.
Got a working answer on Google groups.
"As you are on 1.x create an empty ldap.jpi.pinned file as a sibling and that marker will instruct Jenkins not to replace with the bundled plugin."
Came across the documentation for it as well - https://wiki.jenkins-ci.org/display/JENKINS/Pinned+Plugins

Jenkins find installed plugins

I am new to Jenkins. I have installed some plugins like maven, JDK parameter on my local jenkins server. After installing the same it doesn't appear in the "Configure system" page. I tried to restart my machine, to see if its required but it didn't help. Could someone guide on what are the steps to be followed to use the installed plug in in the configure system page.
Take a look at the official Jenkins wiki: https://wiki.jenkins-ci.org/display/JENKINS/Plugins
Make sure your Jenkins version supports the version of the plugins you want to install.

Jenkins Grails plugin does not list lastest versions of Grails

When installing a new Grails from Jenkins web UI, a user is given the choice of some versions - up to 2.4.4 and 3.0, but 2.4.5 and 2.5 are missed.
How to add 2.4.5 to that list?
P.S. Jenkins 1.598, Grails plugin 1.7 (latest)
There is an automated process within the Jenkins project infrastructure which updates the list of available versions daily.
Your Jenkins installation periodically downloads this file and uses it to populate the version list in the web UI.
Unfortunately, at the time of asking this question, that automated process was broken.
You can either wait for the bug to be fixed (it is now), or there should be the option to "Install from .zip/.tgz" instead of "Install from mirrors", where you can enter the URL to the Grails 2.4.5 zip file.
You have to go to "Manage Jenkins"/"Configure System"/"Grails installations" and put there the path where your installation is.

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