Attila Mészáros created FLINK-38285:
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Summary: Allow to overrride config options with environment
variables
Key: FLINK-38285
URL: https://issues.apache.org/jira/browse/FLINK-38285
Project: Flink
Issue Type: Bug
Components: Kubernetes Operator
Reporter: Attila Mészáros
Overriding or setting config options using environment variables would make the
operator more Kubernetes native since it is a common practice to have settings
propagated as env var (for Deployment object) in Kubernetes.
The only issue is how to encode flink config options as env vars, what I
propose is for names:
* dot would be replaced by by underscore: "." -> "_"
* - hypen by replaced by double underscore: "-" -> "__"
* to upper case
Thus "restart-strategy.failure-rate.delay" =>
"FLINK_CONF_RESTART__STRATEGY_FAILURE__RATE_DELAY"
Similarly to values:
"1 m" => "1_m"
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