BitBucket WebHook Jenkins - jenkins

I'd like to configure bitbutcket to trigger a jenkins build.
I've spent some time researching this and all the answers are from a few years ago, and have not found any guides because things seem to have changed since.
What I'm trying to do:
A bitbucket push to a particular branch triggers a build.
What I've got:
Bitbucket web hooks which fires HTTP request to Jenkins on a push to any branch. I've also installed the Bitbucket plugin on Jenkins which adds a check box in the job config Build when a change is pushed to BitBucket. This checkbox doesnt seem to work (maybe I set it up wrong? minimal docs for this), despite me pushing to the configured branch in the SCM section.
Problem 1: Bitbucket does not fire a GET, but another request which causes a 403. I tested with postman, and it works with a GET, but not a POST.
Problem 2: This HTTP build request is fired on pushes to any branch. While the build is still restricted to a particular branch, it seems unnecessary to be rebuilding all the time.
How do i address these issues? Bitbucket does not seem to be very flexible in customizing this. The Jenkins plugin for bitbucket has a lot of 'bad' reviews. How are developers currently doing this?

SPECIFIC solution for Jenkins CI server--Webhook to Jenkins for Bitbucket plugin has been commercialized in latest version of Bit-Bucket and the current price is around $4800 which was earlier a free offering, because of this, guys who want to save their bucks, can go to the alternative solution by using webhooks feature of bit-bucket:-
Steps to create a webhook:-
BitBucket Side
1) Go to your bitbucket repo, click on Repository Setting, under WORKFLOW got for WEBHOOKS option and create a webhook.
a) creation of webhook:- URL https://JenkinsserverURL/git/notifyCommit?url=https://bitbucket.repository-link/repository.git
b) In the name tab, give any name of your choice
c) click on TEST CONNECTION before saving it. Make sure you get http status 200
d) View details your logs, check your request and response is correct.
Things to take care of from
Jenkins Side:-
1) Make sure repository mentioned in bitbucket webhook is used in Jenkins job.
2) In SCM option, activate/select Poll SCM option, don't mention anything in the schedule, leave it blank.
3) configure rest job,
Whenever your git repo observes any change an automatic build will get triggered in Jenkins. By default push trigger is activated and if you want to activate other action, please select those events while creating webhook.
***to specify the branch in repository webhook:-
http://yourserver/git/notifyCommit?url=<URL of the Git repository>[&branches=branch1[,branch2]*][&sha1=<commit ID>]
Cheers,

Is your Jenkins URL accessible from your bitbucket server? If yes that it should be fairly simple to do it. You add the webhook in your repository as http://<url-of-jenkins>/git/notifyCommit?url=<url-of-repository>. When jenkins receives this POST, it automatically triggers builds on those jobs that use this git repo with that URL you give in webhook.
But you also need to make sure your Build Schedule is set to empty for those jobs. otherwise it wont get triggered. You can specify a branch in webhook URL too
See the Push Notification from repository here
https://wiki.jenkins.io/display/JENKINS/Git+Plugin

For anyone here after July 2022, here are the simple steps I followed to make it work.
Create a live Jenkins URL
First, create a tunnel from a live URL to your local Jenkins URL using ngrok because using locahost:8080 directly as your webhook URL on bitbucket will simply not work as bitbucket does not recognize your local computer.
ps: ngrok claims to be the fastest way to put anything on the internet and I agree,
you can use it beyond Jenkins once you know the trick,
such as quickly handling out your localhost react app for testing by your friends
out of your local network
To do this is simple. For Linux:
Install ngrok snap install ngrok
Add authtoken ngrok config add-authtoken <token>
Don't have an auth token, sign up
Start a tunnel on your Jenkins port eg ngrok http 8080
To know more and for other OS, check ngrok download page
You will then get a response like
ngrok (Ctrl+C to quit)
Hello World! https://ngrok.com/next-generation
Session Status online
Account <your email>#<domain>.com (Plan: <plan type>)
Version 3.0.6
Region Europe (eu)
Latency 162ms
Web Interface <web interface url>
Forwarding https://<your-assigned-host>.ngrok.io -> http://localhost:8080
Basically, the web interface URL on click gives you a web interface to inspect all the requests being tunnelled from your ngrok live URL to your local host.
Forwarding URL is basically a proxy to your localhost, so when you want to configure webhook, instead of using locahost:8080, you replace it with ngrok URL eg https://syue-162-34-12-01.eu.ngrok.io and all requests get tunnelled to localhost:8080
Hook up the URL on bitbucket cloud
Secondly, configure your Bitbucket repository with a Webhook, using URL JENKINS_URL/bitbucket-hook/ (no need for credentials but do remember the trailing slash) eg https://syue-162-34-12-01.eu.ngrok.io/bitbucket-hook/
If you are using bitbucket server and not cloud or you want to know more, the bitbucket plugin documentation for Jenkins is pretty straightforward and easily understandable, see bitbucket plugin
then you can inspect all your webhook requests on the web interface URL or via your terminal as well as check your build logs on Jenkins via your localhost port or ngrok live url.
Disclaimer: I have not figured out how to enable build only when a specific branch change but you can configure jenkins to only build a specific branch or any branch created as your need may demand, check Source Code Management and Build Triggers

Related

BitBucket Webhook - Unable to connect to Jenkins URL

I am trying to create a webhook in BitBucket to trigger a build in Jenkins, but when I enter my Jenkins URL, and I test the connection, I get the error "Unable to connect to the URL specified, check the host and port are correct." I am using the URL http://localhost:8080/bitbucket-hook/ (with the last back slash included) and I can confirm that in Jenkins, my "Jenkins URL" is set to http://localhost:8080/. In Jenkins, I have installed the plugin "BitBucket Server Integration", and under Configure System -> Bitbucket Server Integration, I have connected to the Bitbucket server (and when I test the connection, it says "Jenkins can connect with the Bitbucket Server", so I am pretty sure Jenkins is configured correctly). I don't have credentials set up in Jenkins for the Bitbucket Server configuration, is this necessary even though when I test the connection, it seems to be able to connect? Is my url for the BitBucket webhook correct?? Is there anything else you can think of that I might not have configured correctly so when I test the connection on BitBucket, it will connect properly?
I just ran through a similar setup, to answer to your questions:
yes, I think you will have to use credentials of a user having admin permissions on the repository upon which you want to create the webhook.
Read below, anyway the Webhook URL I got is in the form < jenkins-url >/bitbucket-server-webhook/trigger
The pipeline
According to my experience, the creation of the Webhook is demanded to Jenkins, you don't have to do anything on your own other than creating a new Pipeline object.
Having set the Bitbucket Server Integration configuration up in fact is not enough for the creation of the Webhook, to do that you have to
create a new Pipeline
flag the Build Trigger "Bitbucket Server trigger build after push"
in the Pipeline section, use as Definition "Pipeline Script from SCM" and fill the other fields according to the configuration you have set before.
Point 3 is saying you are retrieving your Pipeline definition from a file stored in Bitbucket itself, you can also customise the name of the file Jenkins is going to look for (by default this should be Jenkinsfile), and use the "Pipeline Syntax" option to get the snippet of code you will use as step in your Jenkinsfile.
Once you have created your Pipeline in Jenkins, the webhook should appear in the right section in your Bitbucket Server repository.

How can I access my Jenkins dashboard on my remote droplet server?

I'm little confused about Jenkins and was hoping someone could clarify some matter for me.
After reading up on Jenkins, both from official docs and various tutorials I get this:
If I wanna set up auto deplyoment or anything Jenkins related, I could just install docker jenkins image, launch it and access it via localhost. That is clear to me.
Then, I just put Jenkinsfile into my repository, so that it knows what and how to build my repo and stuff.
The questions that I have are:
It seems to me that Jenkins needs to be running all the time, so that it can watch for all the repo changes and trigger code building, testing and deploying. If that is the case, I'd have to install Jenkins on my droplet server. But how do I then access my dashboard, if all I have is ssh access?
If Jenkins doesn't need to be up and running 24/7, then how does it watch for any changes?
I'll try to deploy my backend and front apps on docker-compose file on my server. I'm not sure where does Jenkins integrates in all that.
How Jenkins can watch for all the repository changes and trigger code building, testing and deploying?
If Jenkins doesn't need to be up and running 24/7, then how does it watch for any changes?
Jenkins and other automation servers offer two options to watch source code changes:
Poll SCM: Download and compare source code at predefined intervals.This is simple but, hardware consumption is elevated and is a little outdated
Webhooks: Optimal functionality offered by github, bitbucket, gitlab, etc. in which Github, for example, at any git event, makes an http request to your automation server, sending all the information like branch name, commit author, etc). Here more info about webhooks and jenkins.
If you don't want a 24/7 dedicated server, you can use:
Some serverless platform or just a simple application able to receive http posts + webhook strategy. For instance, Github will perform a post requet to your app/servlerless and at this point, just execute your build, test or any other commands to deploy your application.
https://buddy.works/. It is like a mini-jenkins.
If I'd have to install Jenkins on my droplet server. But how do I then access my dashboard, if all I have is ssh access?
Yes. Jenkins is an automation server, so it needs its own dedicated server.
You can install jenkins manually or use docker in your droplet. Configure 8080 port for your jenkins. If everyting is ok, just access to your droplet public ip offered by digitalocean, like: http://197.154.458.456:8080. This url must load the Jenkins dashboard.

Trigger jenkins build when github PR raised

I want Jenkins to trigger build automatically when GitHub PR created, but it seems GitHub unable to communicate with Jenkins, getting an error in GitHub webhook as "We couldn’t deliver this payload: Service Timeout" which is automatically created after below configurations.
my Jenkins server is behind a firewall and I have installed & configured "Github pull request builder".
I have created a job with GitHub project and with below configurations. and
Jenkins proxy test
Any other configuration needed or am I doing something wrong ???
Is your jenkins server accessible from the internet? if not, you will need to open your firewall to allow access from github IPs specifically.
You can find githubs IP addresses on the meta endpoint for the api subdomain:
https://api.github.com/meta
In "Advanced" tab of GHPR select the below option:
Build every pull request automatically without asking (Dangerous!).
Put the name of the branch in Whitelist Target Branches.

How to trigger jenkins build upon bitbucket pull request merged

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.

Showing user details that has triggered the build on Jenkins Server while code is checked in into gitlab

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.

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