Harden configuration of default image coordinates when building the Operator #27733
Description
Description
The Operator should not have a default value set for kc.operator.keycloak.image option when running in prod profile. It's better to fail the deployment rather than to deploy a nightly Keycloak container by mistake. Dev profile should still default to the nightly tag.
Discussion
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Motivation
Prevent issues like #27500 which are caused by a simple misspelling of a build argument.
Details
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