Christian Schneider created FELIX-5899:
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Summary: Add liveliness checks
Key: FELIX-5899
URL: https://issues.apache.org/jira/browse/FELIX-5899
Project: Felix
Issue Type: Improvement
Components: System Ready
Affects Versions: systemready-0.2.0
Reporter: Christian Schneider
Assignee: Christian Schneider
Fix For: systemready-0.4.0
Felix systemready right now only supports readiness checks.
In kubernetes there is a distinction between liveliness and readiness.
* Liveliness decides if the pod needs to be killed and restarted.
* Readiness decides if the pod is exposed to the service / load balancer.
So it makes sense to also support liveliness checks in systemready.
The design idea is that liveliness is a subset of readiness. So an inner set of
checks should decide about liveliness and the full set should decide about
readines.
So I plan to add a property type=Readiness, Liveliness that determines the type
of the check. A check without this property is considered as a readiness check.
The second thing we need is another servlet that displays the liveliness status
to the outside.
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