tags: pipeline CICD

cicd-pipeline

Setting up Jenkins

1. Create a new project where jenkins will be deployed.

   oc new-project serv-jenkins

2. Create a persistent Jenkins instance with:

   • A persistent volume claim wit at elast 4GB.
   • CPU request 500m and CPU limit of 2 cores.
   • Memory request of 1Gi and memory limit of 2Gi.

   oc new-app jenkins-persistent --param ENABLE_OAUTH=true --param MEMORY_LIMIT=2Gi --param VOLUME_CAPACITY=4Gi --param DISABLE_ADMINISTRATIVE_MONITORS=true

   oc set resources dc jenkins --limits=memory=2Gi,cpu=2 --requests=memory=1Gi,cpu=500m
   

Register a Jenkins agent pod

3. Create a file with the pod agent definition.

4. Create ConfigMap with the agent definition file podTemplate.xml.
``` bash
oc create configmap serv-agent --from-file=./jenkins/podTemplate.xml -n serv-jenkins
```
5.Label the ConfigMap so that Jenkins know it's the definition for the agent.
```
oc label configmap serv-agent role=jenkins-slave
```

Setting up the environments

6. Use the provided script ./openshift/settingEnv.sh to setup the environments. Don't forget to provide the environments and the credentials to pull the images. 
    * Jenkins need to be able to create resources in the different environments
    * The environment must be able to pull images from private registries.

Accessing Jenkins