pipeline: A repository from masauve

Create CICD Project and Jenkins

In OpenShift, create a cicd project:

oc new-project cicd

For testing purpose, if persistent storage is not available on your OpenShift ##environment, you can use the ephemeral template.

oc new-app jenkins-ephemeral

oc new-app jenkins-persistent

Create Environments

Create the development environment for the project:

oc new-project dev --display-name="ABC Development"

Create the testing environment for the project:

oc new-project test --display-name="ABC Testing"

oc login admin

When we created the jenkins application, it will create a jenkins service account. We need to grant access to the jenkins service account to the dev and test project

oc policy add-role-to-user edit system:serviceaccount:cicd:jenkins -n dev
oc policy add-role-to-user edit system:serviceaccount:cicd:jenkins -n test

The test project needs to be able to pull images from the development environment

oc policy add-role-to-group system:image-puller system:serviceaccounts:test -n dev

Create Application

The pipeline in this project builds and deploys an application called myapp. We need to create the build and deployment config in the development environment that will be called by jenkins

I have used the OpenShift console to create a simple app. In my case, I am using a php app (https://github.com/masauve/bgdemo). Any app should work.

In the console, go to the development project - add to project - php (or other), configure the php app (name, git repo). The pipeline is currently configured to work with the name myapp. Feel free to adapt to your needs.

IMPORTANT - go to the advanced configuration and disabled all builds and deployments triggers. We want jenkins to control that.

Create Test DC

We also need to create a deployment configuration in the test project for myapp:

oc create deploymentconfig myapp --image=<<RegistryServiceIP>>:5000/dev/myapp:promoteToQA -n test

Note you can get the Registry Service IP and Port by running:

oc get svc -n default

And taking the IP and port for the docker-registry service.

IMPORTANT - If you don't update the <<RegistryServiceIP>> before creating the DC, you will need to edit the created dc to add the fully qualified image name.

Expose myapp in test

oc expose dc myapp --port=8080
oc expose svc myapp

Create the pipeline