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    Type:Task 
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    Resolution: Done
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    Priority:L3 - Default 
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    Affects Version/s: None
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    Component/s: backend, continuous integration
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    None
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        Not defined
Context:
With  OPT-4264 a readiness endpoint was introduced to the rest api of Optimize which allows  to track whether an Optimize container is in an operating state, also see https://docs.camunda.org/optimize/latest/technical-guide/rest-api/health/. 
AT:
- all existing k8s deployement descriptors used for test environments should make use of this endpoint for `readiness/liveness` probes https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/
- on instabilities are ideally alerts sent to #optimize-ci-alerts on slack so we are aware of them