Daniel Rossos created FLINK-38787:
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Summary: Add Metrics for FlinkBlueGreenDeployment resources
Key: FLINK-38787
URL: https://issues.apache.org/jira/browse/FLINK-38787
Project: Flink
Issue Type: Improvement
Components: Kubernetes Operator
Reporter: Daniel Rossos
Currently, the Kubernetes Operator exports specialized metrics for
FlinkDeployment and FlinkSessionJob resources (via FlinkDeploymentMetrics and
FlinkSessionJobMetrics respectively). However, the new FlinkBlueGreenDeployment
resources do not yet export equivalent metrics.
To ensure consistent observability across all CRDs, we should include metrics
for FlinkBlueGreenDeployments that aligns with the existing patterns.
Exact list of what metrics should be included can be discussed, but proposed
initial list of FlinkBlueGreenDeployment metrics could include:
* {_}BlueGreen State{_}, current lifecycle state of FlinkBlueGreenDeployments
in given NS.
** Analogue of: {{flink_k8soperator_namespace_Lifecycle_State_<state>_Count}}
* {_}Transition time{_}, how long transition between states took.
** Analogue of: {{flink_k8soperator_namespace_Lifecycle_Transition_}}
* {_}Amount of time spent in state{_}, how long in most recent transition
FlinkBlueGreenDeployments was in state.
** Analogue of:
{{flink_k8soperator_namespace_Lifecycle_State_<state>_TimeSeconds}}
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