Commits on May 11, 2020

1. Switch to /readyz for haproxy healthchecking …

   Per [0], the /readyz endpoint is how the api communicates that it
   is gracefully shutting down. Once /readyz starts to report failure,
   we want to stop sending traffic to that backend. If we wait for
   /healthz, it may be too late because once /healthz starts failing
   the api is already not accepting connections.
   
   I also moved the liveness probe for haproxy itself to use a /readyz
   endpoint for consistency. This isn't strictly necessary, but I think
   it will be less confusing if there aren't multiple health check
   endpoints in the config.
   
   0: openshift/installer#3537

   

   cybertron committed May 11, 2020
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