How to trigger the build jenkins if master branch has changed? - jenkins

I have a freestyle job with Gitea scm.
I setted webhook on Gitea but when others branch change, jenkins will rebuilds once.
How can I trigger the build on pushed to master branch only?

I may have fallen into the same trap : I configured Gitea with a webhook pointing to https://jenkins/job/myJob/build?token=abcdef... which starts the job whatever the circumstances.
The correct way seems to point to the git notifyCommit URL : https://jenkins/git/notifyCommit?url=git#code.example.org:ltorvalds/kernel.git and use the SCM polling functionnality :
On Jenkins, at job/myJob/configure > Build Triggers, uncheck Trigger builds remotely and check Poll SCM, leaving the schedule empty.
Be also sure to specify your branch (for example : refs/heads/master) in Source Code Management > Git > Branches to build.
If the Jenkins job is private, you can add the username/token in the webhook URL like that : https://username:ApiToken#jenkins/git/notifyCommit?url=git#code.example.org:ltorvalds/kernel.git. See https://wiki.jenkins.io/display/JENKINS/Remote+access+API
More infos / duplicate of How can I make Jenkins CI with Git trigger on pushes to master?

Related

I have a use case which causes issues with Jenkins free style project poll scm

I have a free style project which will trigger on commits. I have kept poll scm which polls for commits in remote repository. This jenkins job actually make some changes to a file after checkout and then commits+push back to remote repository.
This push by jenkins job is actually triggering back a new build due to scm poll for new commits is set in job. I want this job not to trigger again for self commit by job itself
It is not clear if you are using Git. In case you are and expect that the file will be always be changed by Jenkins, Git plugin in freestyle has options to ignore certain file paths.
If this specific file is expected to edited by user other than Jenkins than only solution I can think of is through conditional logic in jenkins pipeline-as-code.

How to build Jenkins after each push in any branch?

Is there any way to make Jenkins builds after each commit in any branch ?
Because i found in my project's configuration that Jenkins run build only after detecting commits in specific branch or in the default ( eq to master in git ).
PS: i'm using mercurial and Jenkins file.
Should i change project type ( new item type in Jenkins ) or are there any modifications in configs.
There are two things that you should check for this (I haven't work with Mercurial)
Does Mercurial has the option to create webhooks?
There is a jenkins plugin for Mercurial? (I think there is)
You must configure on the mercurial site the webhook pointing to Jenkins and give the point to the job you want to run, and on which events does it will fire. On the Jenkins side you must configure on the job who it will behave.
For example, with GitLab, the plugin has an option configured on the "Build Trigger" section where you configure the events and the branches that fires the job. In GitLab, in the repository you create the webhook, that is only a URL pointing to the Jenkins job.
I got this solution and it worked for me.
with Mercurial, we can use the "tip" keyword.The tip revision is the most recent changeset in the repository. It is the most recently changed head.

How to trigger jenkins job that execute automation test scripts when code is pushed in development server?

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.

Bitbucket webhook to trigger Jenkins job

I'm having trouble getting my webhook in bitbucket server to start a Jenkins job. I've read through the other answered questions on here and can't get it going.
Bitbucket setup:
No special plugins installed
In repository settings I have a webhook set up
URL: http://[my jenkins url]/bitbucket-hook/ (yes I have the trailing slash)
Repo Push event selected
Jenkins setup:
Bitbucket plugin installed
Created new job
Set SCM to Git and added repo details
Set branches to build to either ** or refs/heads/rob-jenkins (a branch in git)
Build when a change is pushed to bitbucket selected
What I do:
I make a change to a file in rob-jenkins branch, push and the job is not started in Jenkins.
What I see:
In bitbucket, repo settings, webhooks I can see the webhook fired as soon as the commit is pushed. It has a 200 http status code, response body is empty.
In Jenkins I've set up a logger for
com.cloudbees.jenkins.plugins.BitbucketHookReceiver
com.cloudbees.jenkins.plugins.BitbucketJobProbe
com.cloudbees.jenkins.plugins.BitbucketPayloadProcessor
com.cloudbees.jenkins.plugins.BitBucketTrigger
And when I look at those logs I can see only 1 entry from com.cloudbees.jenkins.plugins.BitbucketHookReceiver
Received commit hook notification : {"eventKey":"repo:refs_changed","date":"2018-05-22T12:18:11+1000","actor":{"name":"xxxxxx","emailAddress":"xxxxxx#xxxxxx.com","id":53,"displayName":"xxxxxx","active":true,"slug":"xxxxxxx","type":"NORMAL"},"repository":{"slug":"xxxxx","id":1,"name":"xxxxx","scmId":"git","state":"AVAILABLE","statusMessage":"Available","forkable":true,"project":{"key":"SS","id":2,"name":"xxxxx","description":"xxxxxx","public":false,"type":"NORMAL"},"public":false},"changes":[{"ref":{"id":"refs/heads/rob-jenkins","displayId":"rob-jenkins","type":"BRANCH"},"refId":"refs/heads/rob-jenkins","fromHash":"1d9ad42fa404c893853094b0072e5b839f787589","toHash":"9bf7dc873f355259e4338ee80afbd246ecbb48a9","type":"UPDATE"}]}
There are no other entries in the log.
In the job itself, the BitBucket Hook Log screen just says "Polling has not run yet."
No idea why it isn't triggering the Jenkins job... what am I missing?
I've tried setting the Poll SCM manually and that didn't make a difference.
I've done a manual build and it works fine
as commented by #tomas-bjerre the resolution was to use a different plugin
I would recommend using thie plugin instead: github.com/jenkinsci/generic-webhook-trigger-plugin – Tomas Bjerre yesterday
No plugin needed. Just add a post-recieve hook under your repo in Bitbucket. On Jenkins, under Build Triggers, Trigger builds remotely (e.g., from scripts) Trigger builds remotely (e.g., from scripts) and specify an Authentication Token. A bash or python script can be used for the hook. Anytime a git push is run (not just a commit), you trigger a build!

Run Jenkins build for whichever branch was checked into on Gitlab

I recently made the transition from Subversion to Git for all my repos at work. However, with svn we had commit hooks in place so that our Jenkins job would run for whichever branch was checked into. Now, I'm trying to set this up using Gitlab and there appears to only be one place to add a web hook. It looks like any time something is checked into ANY branch, the web hook will run. Meaning if I have a branch_A associated with jenkins_job_A, something could be checked into branch_B and the commit hook for jenkins_job_A will still run. Is there a branch by branch way to configure these web hooks? Or is there some kind of script I can check into each branch that will act as a commit hook? Or (my fear) is this feature not supported in Gitlab?
I guess you set up GitLab to do a post commit request to http://yourserver/jenkins/git/notifyCommit?url=<URL of the Git repository>? In theory this should trigger the polling on all jobs that are configured with that URL, and in the polling step the jobs should decide whether they should build or not. In practice this will unfortunately cause all jobs to fire.
We worked around this issue by moving the Job configuration into a Jenkinsfile and then use a Multibranch Pipeline.
As an alternative you could also install the GitLab plugin for Jenkins and use the Jenkins integration in GitLab. This will allow you to trigger the correct jobs when commits are pushed on a branch. The downside is that it requires a per-job configuration.

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