I have one job on Jenkins and its source repo is Perforce. Use P4 plugin to configure source repo and want to trigger this job automatically. There is one Polling SCM but still cannot find change on Perforce but actually there are changes. If build this job manually, code changes can be sync and job works well. So why polling cannot find the changes? Do I miss some configuration?
Thank you in advance.
You can try it the other way around.
Define a webhook in Jenkins (e.g. Generic Webhook Trigger Plugin) and configure the git server to call that on changes.
The other way you generate unnecessary traffic.
Related
I'm trying to configure webhook between Jenkins and Bit bucket for a particular branch.
After this, Jenkins job should start if any changes happen in that specific branch, but the first job is triggering when changes happen for any branch.
After that, webhook is working as expected. It will create a problem to copy the existing job as new and forget to check the job trigger.
Is there anyone who faced any issues like this or am I doing any wrong configuration to setup webhook?
By using this Bitbucket Plugin you can specify the branch name as an option in your job configuration.
I am new to Jenkins. I have development code repository at bitbucket and another test script code repository at bitbucket. Now I have setup a Jenkins job by linking test code repository. Is there any way to trigger a build when code is pushed in develop repo?
I tried many times by pushing change in develop repo, but it does not triggers the jenkins job.
You can configure the Jenkins trigger as an SCM poll.
You will have to enter a cron expression for the polling time period, like:
*/5 * * * *
This means polling from 5 to 5 minutes. If any change is detected, then the build is triggered.
You can add the BitBucket Plugin to your Jenkins instance. It will allow you to configure a webhook in BitBucket that will then trigger any Jenkins job listening for that webhook. The plugin's page has a detailed breakdown, but the basics are;
In your repo in BitBucket, create a new Webhook using your Jenkins' url. I believe the url is generally http://[your jenkins url]/bitbucket-hook/
Make the trigger a repo push.
In your Jenkins job, check the box "Build when a change is pushed to BitBucket" under the Build Triggers section.
Now any time you commit to the repo you created the Webhook on, that Jenkins job will be run.
You can also limit what branches trigger commits by parameterizing your Jenkins build to ignore certain branches / keywords / etc if that's something you need for your specific project.
You can use webhooks to trigger build automatically. There are few options how to use it. See the following articles: this, this and this.
I have development code repository at bitbucket and another test script code repository at bitbucket. Now I have setup a Jenkins job by linking test code repository. Is there any way to trigger jenkins job automatically on change in development repository ?
You can add the BitBucket Plugin to your Jenkins instance. It will allow you to configure a webhook in BitBucket that will then trigger any Jenkins job listening for that webhook. The plugin's page has a detailed breakdown, but the basics are;
In your repo in BitBucket, create a new Webhook using your Jenkins' url. I believe the url is generally http://[your jenkins url]/bitbucket-hook/
Make the trigger a repo push.
In your Jenkins job, check the box "Build when a change is pushed to BitBucket" under the Build Triggers section.
Now any time you commit to the repo you created the Webhook on, that Jenkins job will be run.
You can also limit what branches trigger commits by parameterizing your Jenkins build to ignore certain branches / keywords / etc if that's something you need for your specific project.
Builds by source changes
You can have Jenkins poll your Revision Control System for changes. You can specify how often Jenkins polls your revision control system using the same syntax as crontab on Unix/Linux. However, if your polling period is shorter than it takes to poll your revision control system, you may end up with multiple builds for each change. You should either adjust your polling period to be longer than the amount of time it takes to poll your revision control system, or use a post-commit trigger. You can examine the Polling Log for each build to see how long it took to poll your system.
Alternatively, instead of polling on a fixed interval, you can use a URL trigger (described above), but with /polling instead of /build at the end of the URL. This makes Jenkins poll the SCM for changes rather than building immediately. This prevents Jenkins from running a build with no relevant changes for commits affecting modules or branches that are unrelated to the job. When using /polling the job must be configured for polling, but the schedule can be empty.
To give some context the question is about GitLab and Jenkins setup.
I know how to setup a web hook, I know how to setup a job to be triggered by the hook. The problem is that I need to have multiple jobs and only a single entry-point (parent job) trigger for them.
The downstream jobs at the same time need to be git repo aware so I have to set repo url for them. This causes them to be triggered independently by the hook and I don't want that as this means that they are triggered twice.
On the other hand if I don't configure repo url on a downstream job and the parent job triggers it, it fails as it is not able to do a checkout.
I may try to hack around with some 'execute shell' build step, I believe it's not a valid way to go. Has anybody a good tip how to solve that?
For the reference here is the GitLab Jenkins plugin documentation according to which:
Plugin will parse the GitLab payload and extract the branch for which
the commit is being pushed and changes made. It will then scan all Git
projects in Jenkins and start the build for those that:
match url of the GitLab repo
match the configured refspec pattern if any
and match committed GitLab branch
I tried playing around with different settings, without a great result though.
For the project you want to get only local triggers, just enable Don't trigger a built on commit notification in the Additional behaviours of git plugin.
(https://github.com/elvanja/jenkins-gitlab-hook-plugin/issues/11#issuecomment-35385032, as you actually have discovered).
But a better solution could be to make your downstream jobs reference the repository locally cloned by main job (not sure if actually possible), so the plugin will never consider them for schedule a build, as the git url don't match.
I am creatig a new Jenkin Job. This job is using SVN version control and coding is done in Java and also i am creating jar using ANT.
Now I would like to create job that detects changes in svn repository.
i.e., When ever the developer changes the code jenkins job need to executed automatically.
Can any one please help me.
Thanks
Have you given Subversion Plugin a read?
Post-commit hook is of concern to you -
Jenkins can poll Subversion repositories for changes, and while this is reasonably efficient, this can only happen up to every once a minute, so you may still have to wait a full minute before Jenkins detects a change.
To reduce this delay, you can set up a post commit hook so the Subversion repository can notify Jenkins whenever a change is made to that repository.