I try to configure Jenkins. I want a simple behavior: trigger a build on new pull request.
I cannot understand what I missed...
Jenkins version: 2.89.2
At https://ci.mysite.fr/configure :
Still no build triggered:
At https://ci.mysite.fr/job/test-back/configure :
On Github, Webhook is sent and well received by Jenkins:
Nginx Log says the same:
Help please!
Some things to check when debugging this sort of thing:
Check your Jenkins logs to see whether or not Jenkins is receiving the hook and deciding not to take action for some reason.
Check Jenkins security by clicking Manage Jenkins -> Configure Global Security. Open things up as much as you're comfortable doing and see if that changes anything.
Ensure that you're pushing changes to the master branch. For simplification, consider using ** as your branch specifier while you're getting this to work.
Ensure Git is properly configured on your Jenkins host by clicking Manage Jenkins -> Global Tool Configuration
Make sure the user whose credentials you provided can manage hooks and pull from the repo you're interested in.
Run the job manually in Jenkins, ensure that it works.
After you run the job, it should show up as an option in Protected Branches/Required Statuses. In your repo, click on Settings->Branches, select your branch in the Branches section, click Require Status Check to Pass before merging option, and your job should show up in the list which appears.
Webhooks are arguably the most difficult Jenkins feature to test without prior experience, because of gotchas like these (probably their list is incomplete):
New git commit / git push must be made for each pipeline build (repeating a previous one won't trigger a new build even if webhooks are already set up correctly - see below).
First build made after setting up webhook correctly must be manual (no bootstrap from the webhook itself is possible).
First build made after setting webhook correctly must succeed completely for the changes to take effect and for webhooks to start working. This will also cause Jenkins to miss all incoming requests made during the first build of a newly created pipeline.
More info
Please be warned that it is not possible to trigger a build using the same build conditions again (at least using a webhook). Therefore you might have a correct webhook setup already, but not find out that it works unless you create a new git commit and push it to the remote repo on Github. If your try to repeat some old push over and over again, by simply pressing the "Redeliver" button in the Recent deliveries section on Github's Webhooks / Manage webhook page, Jenkins will never move beyond the "poke" repo stage, as it requires SCM changes to be detected in order to trigger a new build:
Received PushEvent for https://github.com/mirekphd/<REPO_NAME> from <GITHUB_IP> ⇒ <JENKINS_URL>/github-webhook/
Apr 16, 2021 9:42:12 PM INFO org.jenkinsci.plugins.github.webhook.subscriber.DefaultPushGHEventSubscriber$1 run
Poked <REPO_NAME>
Apr 16, 2021 9:42:13 PM INFO com.cloudbees.jenkins.GitHubPushTrigger$1 run
SCM changes detected in <REPO_NAME>. Triggering #236
For further info on points 2) and 3): see original source.
Related
I think I've done the hard part already: the Github webhook after a push always returns a success message.
I can build manually. But it never builds after the push, because "polling" never happens.
Both the GitHub Hook Log and Git Polling Log say "Polling has not yet run".
Here is my configuration:
Branches to build: refs/heads/checkJenkins
Build Triggers: GitHub hook trigger for GITScm polling, Poll SCM
Build: Execute shell: 'git pull'
Any ideas on how to get the polling started?
A side question: which should be doing the polling when I'm using the webhook in github: the "GITScm polling" or "Poll SCM"? Can I delete one of those settings?
Poll SCM is to scan the repository for changes at regular intervals as specified by the cron under Schedule. So this option is redundant.
Now coming to the hook, is it configured to deliver everything or just the push event? You can hit http://<jenkins_url>/log/all in your browser to see the system log while pushing changes. Towards the bottom of this log, see if Jenkins has received the hook and poked the job. If the hook is not received, reconfigure it at GitHub to send the appropriate events. Else, delete and recreate the job as sometimes Jenkins fails to register a new job to poke on receiving events and at other times a new job itself doesn’t respond to poking.
It's enough to keep only GitHub hook trigger for GITScm polling on, because this is the right option for conditional triggers (following git push as opposed to scheduled as a cron job, i.e. proper polling 1).
As for ideas on how to get the triggering (not polling) started, consult my "pre-flight checklist" here, because it's not a trivial matter.
Side note: feel free to report it to the Jenkins Github Plugin devs if you also think that the word "polling" is misplaced in this option (as per the definition of this term).
I have taken these steps:
Check "GitHub project" and set up the project
Check "GitHub hook trigger for GITScm polling"
Setup connection to private repository with user/password
If I build manually, it works
In GitHub, create a webhook on push to http://my_jenkins_url/github-webhook/
Whenever I commit something, it shows that a webhook has been sent and I get a 200 response code (on github)
But no build is triggered on Jenkins. The GitHub Hook Log says: "Polling has not run yet.". How can I make it "start"? How can I further debug this?
EDIT: I have not added a GitHub Server in Manage Jenkins -> Configure -> GitHub since I ran into issue with the authentication (but that would be a different question). Is this required for github webhooks?
EDIT2: I figured out how to add a GitHub API to the Jenkins config (using Personal Access Token with git hook access enabled). But it doesn't seem to make a difference.
I found how to fix it properly.
First. set Jenkins logger at Jenkins manage > system log
add log recoder, with this configuration
hudson.plugins.git.GitStatus - All
com.cloudbees.jenkins.GitHubWebHook - All
org.jenkinsci.plugins.github - All
Second. Hook trigger again.
and check logger again. In my case, the logger says
Skipped {ProjectName} because it doesn't have a matching repository.
Third. Check the webhook url where the webhook request exactly came from.
it will be specified at logger like this:
Received PushEvent for https://github.com/{username}/{reponame} from {ip} ⇒ http://{your jenkins url}/github-webhook/
Fourth. Again go to jenkins project configuration,
check whole github urls are exactly same as https://github.com/{username}/{reponame} at step 3.
No .git at last.
I hope this answer helps you. Thank you
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!
I looked at all other related questions and answers, didn't find anything solid, hence I'm opening a new question to look for your kind help, I've been working on this the whole day, any help I can get would be highly appreciated.
Here's my environment:
self-hosted jenkins server (Jenkins ver. 1.651.3) with git and bitbucket plugin installed.
https://bitbucket.org (I do not have a self-hosted bitbucket server)
What I want to do: to trigger jenkins build upon pull request got merged from feature branch to master branch.
Different setting combinations which I had tried:
jenkins: 'Build when a change is pushed to BitBucket' checked.
bitbucket: web hooks trigger: 'Repository push' checked.
Result: build was triggered successfully upon commit to master branch, but that's not what I want, but at least I know the communication between my jenkins server and bitbucket is fine.
jenkins: 'Build when a change is pushed to BitBucket' checked.
bitbucket: web hooks trigger: 'Repository push' checked, and Pull Request - 'Merged' checked.
Result: jenkins does not respond to the pull request merged action. I assumed it would work since I had the Pull Requst - 'Merged' checked in the web hooks trigger setting, and I did see the request was sent by bitbucket to my jenkins server, and it got 200 status code back from my jenkins server, but still, nothing happens.
jenkins: 'Build when a change is pushed to BitBucket' checked. And besides that, I installed another plugin called bitbucket-pullrequest-builder-plugin, and configured it according to the instruction.
bitbucket: web hooks trigger: 'Repository push' checked, and Pull Request - 'Merged' checked.
Result: with the help of bitbucket-pullrequest-builder-plugin, the build was indeed triggered upon pull request created. But the jenkins server polls the bitbucket repository constantly, and I didn't find a way to stop that, no way to trigger build ONLY upon merge neither...
I heard there's people says that you'll need to install a post-hook plugin on the bitbucket server in order to do what I want to do, but the thing is I dont host the bitbucket...
Based on some research you can have a few options as of today Nov 12 of 2017:
Use the generic post webhooks plugin that supports pull request trigger. And from jenkins pick it up with the generic webhooks plugin, then maybe do a secondary trigger from jenkins.
Upgrade the bitbucket server and webhooks to jenkins plugin. The server 4.13 does not work well with later webhooks to jenkins plugin. A paid version of the plugin probably is your best choice.
Or try bamboo that comes with the "plan banches" feature.
When you configure GIT - push, commit... etc hooks, be sure to check the JENKINS git selection, and set the BRANCH to check for (** specifies all branches) and most importantly,
USE localtunnel.me or similar to set your JENKINS online or it won't work.
I want to show user details of user who has triggered build on jenkns. I have integrated gitlab and jenkins and gitlab triggers the build on jenkins via web hook. We log in to gitlab through LDAP. Is there any way to show user details got from gitlab on Jenkins ???? Thanks in advance
At the moment, I don't believe this is possible. But it could be implemented.
In most cases where Jenkins jobs are triggered via Git webhook, the job itself is not triggered directly, but rather Jenkins is informed that for a given Git URI, there may have been changes.
Jenkins then polls Git for changes and, if something new was found, triggers a build of the jobs that use that repository. So at this point, various jobs just start, without receiving any special information about the webhook push that happened.
Also, a new build could have been triggered by multiple commits, from several different people, so it may not make sense to show a single person's name as being the one that triggered a build.
However, there are special implementations that understand the webhook payload format of different hosting services (e.g. GitHub, Bitbucket etc.).
Indeed, the GitLab Hook plugin looks like it does this: if you start a build via the /gitlab/build_now webhook endpoint, then on the build page, you'll see why the build started, e.g. "triggered by merge request feature -> develop" or "triggered by push on branch develop with 2 commits".
While it seems that part of the plugin does read an author's name from the payload (presumably for merge requests), this isn't currently shown on the build page.
So you could try implementing this or filing a feature request on the Jenkins plugin.
As a short term workaround, you can also look at the "Changes" page for each build. There you can see which commits were in that build, and the author names should be shown next to each one.
You may have to configure the "repository browser" under the Git section in the job configuration for this to work.