[jira] [Assigned] (FLINK-30858) Kubernetes operator does not update reconciled generation

["Gyula Fora (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-30858?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gyula Fora reassigned FLINK-30858:
----------------------------------

    Assignee: Gyula Fora

> Kubernetes operator does not update reconciled generation
> ---------------------------------------------------------
>
>                 Key: FLINK-30858
>                 URL: https://issues.apache.org/jira/browse/FLINK-30858
>             Project: Flink
>          Issue Type: Bug
>          Components: Kubernetes Operator
>    Affects Versions: kubernetes-operator-1.3.1
>            Reporter: Thomas Weise
>            Assignee: Gyula Fora
>            Priority: Major
>
> Kubernetes manages the generation field as part of the spec metadata. It will be increased when changes are made to the resource. The counterpart in status is "observed generation", provided by a controller. By comparing the two, the client can determine that the controller has processed the spec and in conjunction with other status information conclude that a change has been reconciled.
> The Flink operator currently tracks the generation as part of reconciled and stable specs but these cannot be used as "observed generation" to perform the check. The value isn't updated in cases where operator determines that there are no changes to the spec that require deployment. This can be reproduced through PUT/replace with the same spec or a change in upgrade mode.
> The operator should provide the observed spec, which in conjunction with deployment state can then be used by clients to determine that the spec has been reconciled.



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