Cloud SQL - List Unsucessful Backups Older Than N Days

The following example demonstrates ability of Cloud Custodian to track backup runs of Cloud SQL instances and list unsuccessful backups (if any) older than 5 days.

policies:
- name: sql-backup-run
  description: |
    check basic work of Cloud SQL filter on backup runs: lists unsucessful backups older than 5 days
  resource: gcp.sql-backup-run
  filters:
    - type: value
      key: status
      op: not-equal
      value: SUCCESSFUL
    - type: value
      key: endTime
      op: greater-than
      value_type: age
      value: 5
  actions:
    - type: notify
      to:
       - email@address
      # address doesnt matter
      format: txt
      transport:
        type: pubsub
        topic: projects/river-oxygen-233508/topics/first