Description

Use the anchors ^ and $ in regular expressions

In stackable-operator and in the Kubernetes source code, there are formats (fmt), e.g. [a-z]([-a-z0-9]*[a-z0-9])?, and regular expressions (regex), e.g. ^[a-z]([-a-z0-9]*[a-z0-9])?$. The format is without anchors and the regular expression contains the anchors (if desired).

This is now applied to the regular expressions in this operator.

The constants from stackable-operator are not used anymore because strings cannot be concatenated at compile-time. This would be possible with a macro like concatcp but I chose, not to introduce another dependency.

Definition of Done Checklist

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Acceptance

• Feature Tracker has been updated
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