Openshift webhook branch filter

Question

I successfully installed Openshift Origin (latest), and performed automated builds.

I.e., once I pushed something on master branch, I get a build triggered through a git webhook, using the URL provided by Openshift triggers.

Now I would like to trigger a build only when a specific branch is updated.

I created a new dev branch, and added a new build with its dedicated service and route.

But when I push in master, the dev build is also triggered. The same occurs for master when I push in dev, though I updated Source ref: with the correct branch name.

However, master build uses the master branch, and dev build is done with dev branch. But I want only the dev build to be triggered when I push in dev branch only.

Here is the YAML output of the following command : oc get buildconfigs lol-master --output=yaml

apiVersion: v1
kind: BuildConfig
metadata:
  annotations:
    openshift.io/generated-by: OpenShiftWebConsole
  creationTimestamp: 2016-04-22T06:02:16Z
  labels:
    app: lol-master
  name: lol-master
  namespace: lol
  resourceVersion: "33768"
  selfLink: /oapi/v1/namespaces/lol/buildconfigs/lol-master
  uid: c3d383c3-084f-11e6-978b-525400659b2e
spec:
  output:
    to:
      kind: ImageStreamTag
      name: lol-master:latest
      namespace: lol
  postCommit: {}
  resources: {}
  source:
    git:
      ref: master
      uri: http://git-ooo-labs.apps.10.2.2.2.xip.io/ooo/lol.git
    secrets: null
    type: Git
  strategy:
    sourceStrategy:
      from:
        kind: ImageStreamTag
        name: ruby:latest
        namespace: openshift
    type: Source
  triggers:
  - github:
      secret: cd02b3ebed15bc98
    type: GitHub
  - generic:
      secret: 7be2f555e9d8a809
    type: Generic
  - type: ConfigChange
  - imageChange:
      lastTriggeredImageID: centos/ruby22-centos7@sha256:990326b8ad8c4ae2619b24d019b7871bb10ab08c41e9d5b19d0b72cb0200e28c
    type: ImageChange
status:
  lastVersion: 18

Am I missing something ?

Many thanks

Answer 1

You're pointing to master branch in your BuildConfig:

 source:
    git:
      ref: master
      uri: http://git-ooo-labs.apps.10.2.2.2.xip.io/ooo/lol.git
    secrets: null
    type: Git

but should rather point to dev, as you're saying. Generally you need separate BC for the master and dev branches and each will have the webhook configured accordingly. Additionally the format for the branch is refs/heads/dev, since that's the information OpenShift gets from github.

In the code we're checking for matching branches and ignore the hook if it doesn't match. Please check once again, and if you're still experiencing problem I'd ask you to open a bug against https://github.com/openshift/origin with detailed description.

Answer 2

I created an issue on Github related to this behavior (GitHub issue #8600). I've been said I need to use a Github webhook, and not a generic webhook in this case.

I switched the webhooks to github type, and it works like a charm.