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Health check

Health Check

Health check executed every 1 minute as configured in the helm chart under livenessProbe, and triggered by /healthz endpoint: 

livenessProbe:
  httpGet:
    path: /healthz
    port: 8080
    scheme: HTTP
  initialDelaySeconds: 10
  timeoutSeconds: 10
  periodSeconds: 60
  successThreshold: 1
  failureThreshold: 4

The mechanism for checking the health of Piper is:

  1. Piper set health status of all webhooks to not-healthy.

  2. Piper requests ping from all the webhooks configured.

  3. Git Provider send ping to /webhook endpoint, this will set the health status to healthy with timeout of 5 seconds.

  4. Piper check the status of all webhooks configured.

Therefore, the criteria for health checking are: 1. The registered webhook exists. 2. The webhook send a ping in 5 seconds.