c7n-tag-policy.yml

policies:
   - name: satish-ec2-tag-check-notify
     region: us-east-2
     description: |
       notify Owner if 4 tags as below are not added.
     resource: ec2
     mode:
       type: periodic
       schedule: "cron(0/10 * ? * * *)"
       role: arn:aws:iam::12345:role/custodian-generic-role
     filters:
       - and:
          - tag:bax-ctime: present
          - tag:Appid: absent
          - tag:Appname: absent
          - tag:Owner: absent
          - tag:Name: absent
       - type: state-age
         op: ge
         days: 1
     actions:
       - type: notify