tekton-cleanup.yaml

---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: cleaner
  namespace: tekton-pipelines
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: cleaner
rules:
  - apiGroups: ["tekton.dev"]
    resources: ["pipelineruns"]
    verbs: ["delete", "get", "watch", "list"]
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: cleaner-to-cleaner
roleRef:
  kind: ClusterRole
  name: cleaner
  apiGroup: rbac.authorization.k8s.io
subjects:
  - kind: ServiceAccount
    name: cleaner
    namespace: tekton-pipelines
---
apiVersion: batch/v1
kind: CronJob
metadata:
  name: cleanup-pipelineruns
  namespace: tekton-pipelines
spec:
  schedule: "*/5 * * * *"
  concurrencyPolicy: Forbid
  jobTemplate:
    spec:
      template:
        spec:
          restartPolicy: OnFailure
          serviceAccount: cleaner
          containers:
            - name: kubectl
              image: docker.io/csantanapr/helm-kubectl
              env:
                - name: NUM_TO_KEEP
                  value: "5"
              command:
                - /bin/bash
                - -c
                - |
                  kubectl get -A pipelinerun -o jsonpath='{range .items[?(@.status.completionTime)]}{.status.completionTime}{" "}{.metadata.namespace}{" "}{.metadata.name}{"\n"}{end}'|sort|head -n -${NUM_TO_KEEP}|awk '{ print "kubectl delete pipelinerun" " -n " $2 " " $3 }'|xargs -P4 -I{} sh -c "{}"