apiVersion: batch/v1
kind: CronJob
metadata:
  name: devworkspace-pruner
  namespace: openshift-operators
spec:
  schedule: "0 0 1 * *"
  successfulJobsHistoryLimit: 3
  failedJobsHistoryLimit: 3
  concurrencyPolicy: Forbid
  jobTemplate:
    spec:
      template:
        spec:
          volumes: 
          - name: script
            configMap:
              name: devworkspace-pruner
              defaultMode: 0555
              items:
              - key: devworkspace-pruner
                path: devworkspace-pruner.sh
          restartPolicy: OnFailure
          serviceAccount: devworkspace-controller-serviceaccount
          containers:
          - name: openshift-cli
            image: image-registry.openshift-image-registry.svc:5000/openshift/cli:latest
            env:
            - name: RETAIN_TIME
              # 30 days
              value: "2592000"
            command:
            - /script/devworkspace-pruner.sh
            resources:
              requests:
                cpu: 100m
                memory: 64Mi
              limits:
                cpu: 100m
                memory: 64Mi
            volumeMounts:
            - mountPath: /script
              name: script
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: devworkspace-pruner
  namespace: openshift-operators
data:
  devworkspace-pruner: |
    #!/usr/bin/env bash
    current_time=$(date +%s)
    for namespace in $(oc get namespaces -l app.kubernetes.io/component=workspaces-namespace -o go-template='{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}')
    do
      for workspace in $(oc get devworkspaces -n ${namespace} -o go-template='{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}')
      do
        last_start=$(date -d$(oc get devworkspace ${workspace} -n ${namespace} -o go-template='{{range .status.conditions}}{{if eq .type "Started"}}{{.lastTransitionTime}}{{end}}{{end}}') +%s)
        workspace_age=$(( ${current_time} - ${last_start} ))
        if [[ ${workspace_age} -gt  ${RETAIN_TIME} ]]
        then
          echo "Removing workspace: ${workspace} in ${namespace}"
          oc delete devworkspace ${workspace} -n ${namespace}
        fi
      done
    done