Add Persistent Volume Claim For Maven/OWASP Dependency Check Caching

[InfoSec812]

Add a PVC to the CI/CD project which can be used as part of a containerTemplate in a Jenkinsfile so that Maven and OWASP Dependency Check data can be cached to improve build performance.

The Jenkinsfile changes would look like:

pipeline {
    agent {
        kubernetes {
            label 'jenkins-slave-cached'
            podTemplate {
                label 'jenkins-slave-cached'
                inheritFrom 'jenkins-slave-mvn'
                ttyEnabled true
                command 'cat'
                volumes: [
                    persistentVolumeClaim {
                        claimName 'maven-cache'
                        mountPath '/home/jenkins/.m2/repository'
                    }
                ]
            }
        }
    }
... SNIP ...

[InfoSec812]

The PVC definition would look like:

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  annotations:
    volume.beta.kubernetes.io/storage-class: glusterfs-storage
    volume.beta.kubernetes.io/storage-provisioner: kubernetes.io/glusterfs
  name: maven-cache
spec:
  accessModes:
  - ReadWriteMany
  resources:
    requests:
      storage: 5Gi
status:
  accessModes:
  - ReadWriteMany
  capacity:
    storage: 5Gi

[makentenza]

@InfoSec812 why are you enforcing the use of Gluster for this backend? Also hardcoding the storageclass name is not a good idea, we should leave this open as we do for other templates so the user can use their existing default storageclass if this exist or use any available PV

[sherl0cks]

@haithamshahin333 FYI