Update health check status based on the endpoints object instead of pod #503
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Previously, we were updating health check status based on the pod status of the pod that the endpoints address is pointing to. However, since the endpoints controller is not watching pod objects, it will not always have the most updated pod information in the cache. This results in incorrect behavior where sometimes the pod we get will have stale information and we update the health check status in Consul incorrectly. This commit changes this behavior to instead get the health check status from the endpoints object. The endpoints object already has information about ready and not ready addresses, and it will always have updated cache since we receive events based on updates from the Kubernetes API server to the cached Informer.
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Previously, we were updating health check status based on the pod status
of the pod that the endpoints address is pointing to. However, since the
endpoints controller is not watching pod objects, it will not always have
the most updated pod information in the cache. This results in incorrect behavior
where sometimes the pod we get will have stale information and we update the
health check status in Consul incorrectly.
This PR changes this behavior to instead get the health check status from
the endpoints object. The endpoints object already has information about ready
and not ready addresses, and it will always have updated cache since we receive
events based on updates from the Kubernetes API server to the cached Informer.
How I've tested this PR:
Acceptance test here
How I expect reviewers to test this PR:
code review
Checklist: