tekton-cleanup-pipelineruns.yaml

apiVersion: batch/v1beta1
kind: CronJob
metadata:
  name: tkn-cleanup
spec:
  failedJobsHistoryLimit: 1
  successfulJobsHistoryLimit: 1
  concurrencyPolicy: Replace
  schedule: "0 0 * * *"
  jobTemplate:
    spec:
      template:
        spec:
          serviceAccountName: tkn-aac-sa
          containers:
          - name: cleanup
            image: docker.io/alpine/k8s:1.18.2
            command: ["/bin/bash", "-c", "for ns in $(kubectl get pipelineruns -l tekton.dev/pipeline=tekton-as-a-code -o json | python3 -c \"import sys, datetime, json;jeez=json.load(sys.stdin);res=[ i['metadata']['name'] for i in jeez['items'] if datetime.datetime.now() > datetime.datetime.strptime(i['metadata']['creationTimestamp'], '%Y-%m-%dT%H:%M:%SZ') + datetime.timedelta(days=3) ];print(' '.join(res))\");do kubectl delete pipelinerun ${ns};done"]
          restartPolicy: Never