Fix KubeLB enhancement issues

[Copilot]

What this PR does / why we need it:
Fixes several KubeLB option issues in the cluster wizard and edit-cluster dialog:

• Fixes double tooltip on KubeLB checkbox — when KubeLB is enforced, only the enforced tooltip shows; when not enforced, only the info icon tooltip shows. Uses [matTooltipDisabled] and conditional rendering of the info icon.

• Hides Kubermatic KubeLB option when enabled: false

• Adds a warning message on the cluster summary page for AWS/Azure providers when KubeLB is enabled, reminding users to ensure "Assign Public IP" is selected in node settings.

Which issue(s) this PR fixes:
Fixes #7902

What type of PR is this?
/kind bug

Does this PR introduce a user-facing change? Then add your Release Note here:

Adds some KubeLB Enhancements

Documentation:

NONE

[kubermatic-bot]

Hi @Copilot. Thanks for your PR.

I'm waiting for a kubermatic member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[KhizerRehan]

/close

[kubermatic-bot]

@KhizerRehan: Closed this PR.

Details

In response to this:

/close

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[kubermatic-bot]

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Details

Needs approval from an approver in each of these files:

• modules/web/src/OWNERS

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[Copilot]

Pull request overview

This PR addresses several UX and spec-generation issues around configuring KubeLB in the cluster creation wizard and the edit-cluster dialog, and adds a provider-specific warning to the cluster summary.

Changes:

• Prevent KubeLB sub-options (useLoadBalancerClass, enableGatewayAPI) from being sent as true when the main KubeLB toggle is disabled (wizard + edit).
• Fix the “double tooltip” behavior on the KubeLB checkbox by disabling the enforced tooltip when not enforced and conditionally rendering the info icon.
• Add a cluster summary warning banner for AWS/Azure when KubeLB is enabled, reminding users about “Assign Public IP”.
• Update _isKubeLBEnabled() logic to add datacenter-level explicit disable precedence (wizard + edit).

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
modules/web/src/app/wizard/step/cluster/template.html	Adjust KubeLB tooltip behavior and conditionally show info tooltip icon.
modules/web/src/app/wizard/step/cluster/component.ts	Reset KubeLB sub-options when disabled; update _isKubeLBEnabled() precedence logic.
modules/web/src/app/shared/components/cluster-summary/template.html	Render AWS/Azure warning banner when KubeLB is enabled.
modules/web/src/app/shared/components/cluster-summary/style.scss	Add styling for the new warning banner.
modules/web/src/app/shared/components/cluster-summary/component.ts	Add computed flag for showing the new warning banner.
modules/web/src/app/cluster/details/cluster/edit-cluster/template.html	Mirror tooltip behavior changes for KubeLB checkbox in edit dialog.
modules/web/src/app/cluster/details/cluster/edit-cluster/component.ts	Mirror sub-option reset + _isKubeLBEnabled() precedence changes in edit dialog.

---

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[codecov]

Codecov Report

❌ Patch coverage is 16.21622% with 31 lines in your changes missing coverage. Please review.
✅ Project coverage is 45.14%. Comparing base (082f12a) to head (8f79902).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...dules/web/src/app/wizard/step/cluster/component.ts	0.00%	15 Missing ⚠️
...app/shared/components/cluster-summary/component.ts	0.00%	9 Missing ⚠️
.../cluster/details/cluster/edit-cluster/component.ts	46.15%	5 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7958      +/-   ##
==========================================
- Coverage   45.19%   45.14%   -0.06%     
==========================================
  Files         447      447              
  Lines       20831    20859      +28     
  Branches     2977     2999      +22     
==========================================
+ Hits         9414     9416       +2     
- Misses      11413    11437      +24     
- Partials        4        6       +2     

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[Waseem826]

/test all

[KhizerRehan]

/test all

[KhizerRehan]

@Waseem826 we needed undefined check because here this struct is receiving from backend side. Manually changing seed setting false e.g

    hetzner-fsn1:
      country: DE
      location: Falkenstein 1 DC 14
      spec:
        hetzner:
          ...
        kubelb:
          enabled: false

is returning undefined when set to false or when property was not added completely and according to @shinushaju we need to hide Kubermatic KubeLB option when it was set to false.

Therefore this check was added as this is omitempty skips property when JSON serialization is done
https://github.com/kubermatic/kubermatic/blob/28dcb972592be71f9369cd55aa54b72ed2c9ee83/sdk/apis/kubermatic/v1/datacenter.go#L1348

However i tested it works find with undefined check but false is added as fallback in case it is fixed from backend side

Ref:

• https://navendu.me/tils/9-5-25-omitempty-option-omits-boolean-fields-with-false-values/