Trigger Jenkins Job from Bitbucket on Pull Request

Question

Hoping to gather insight from professionals. My end goal is to trigger a jenkins build whenever a bitbucket pull request happens. If anyone could give me an ELI5(explain like I am 5) answer it would be greatly appreciated. Sorry if this is the wrong format, I am new to jenkins and stackoverflow.

What I have done so far:

1. Created webhook in bitbucket and gave the url to my jenkins job. example: http://jenkinsURL:8080/job/boulevard-dev/generic-webhook-trigger/invoke?token=myPull_Request_Token

2. Pull request webhook trigger

3. In Jenkins, under source code management I have: Source Code Management Settings. This is currently fetching a ton of branches, failing, then building the master branch when the job starts?

4. For build triggers, other stackoverflow articles have pointed me to the "Generic Webhook Trigger". https://github.com/jenkinsci/generic-webhook-trigger-plugin

5. I am not entirely sure how this generic webhook trigger should effectively be setup? Hoping someone has experience using it and could explain what is needed.

6. This is what have seen referenced in other articles.Build Triggers settings Build triggers settings 2

Questions:

• What does a correct setup / example of the generic webhook trigger look like?
• Currently, my job triggers when a change is made to master or merged to master, how can I specify to my job that I want the bitbucket pull request branch to be built?
• Also, I found this, not sure if its related to my issue or not? https://jira.atlassian.com/browse/BCLOUD-5814

Answer 1

As per your requirement, you can trigger a Jenkins build whenever a bitbucket pull request happens by following the below steps, in my case, it's working fine.

Step(1) - Configure Jenkins
(i) Add your bitBucket repo and branch to source code management (ii) On build Triggers setup Poll SCM to * * * * * for run every minute to check pull request from bitBucket.

Step(2) - configure Bit Bucket Hook
(i) Go to settings and add a new hook, now setup pull request trigger as per your requirement.

Step(3) - Make a pull request and see the new job automatically triggered on Jenkins.