[Merged by Bors] - Support LDAP using TLS

[sbernauer]

Description

Fixes #382

Review Checklist

• Code contains useful comments
• CRD change approved (or not applicable)
• (Integration-)Test cases added (or not applicable)
• Documentation added (or not applicable)
• Changelog updated (or not applicable)
• Cargo.toml only contains references to git tags (not specific commits or branches)
• Helm chart can be installed and deployed operator works (or not applicable)

Once the review is done, comment bors r+ (or bors merge) to merge. Further information

[sbernauer]

Started test https://ci.stackable.tech/view/02%20Operator%20Tests%20(custom)/job/druid-operator-it-custom/87/

[sbernauer]

Started new run https://ci.stackable.tech/view/02%20Operator%20Tests%20(custom)/job/druid-operator-it-custom/88/

[sbernauer]

Test succeeded, re-running after merging main

[vsupalov]

Looks great! I have nothing apart from small observations. I think the tradeoff "if we have ldap, we expect tls to be enabled" is reasonable, although the idealist in me complains. We can roll with it, it will probably not be an issue for any real usecase. (And for those who might complain, not having non-bind LDAP would be an issue as well probably.)

One part which is missing, is adjusting the LDAP docs over in the usage.adoc file. Once that is adjusted, we can merge this.

[vsupalov]

[sbernauer]

bors r+
Thx for the review!

[bors]

Pull request successfully merged into main.

Build succeeded:

• All tests passed