I was reading the Cloud Foundry docs on Pushing Apps with Sidecar Processes.
Under Limitations, there was a point stating health-checks:
- Sidecars only support PID-based health checks. HTTP health-checks for sidecars are not currently supported.
I am unable to understand the difference between PID-based and HTTP-based health-checks. As per my understanding HTTP-based health-checks would require HTTP calls against services to check their state. I have no idea how PID-based health checks would be carried out.