feat: Adding ClusterAnalysisTemplate support for Stage verifications

[BenHesketh21]

closes #2481

ClusterAnalysisTemplate Support

This PR adds the ability to refer to cluster level analysis templates using the clusterScope option (inspired by Argo Rollouts).
The verification process finds all the templates and combines them in one run, in the same way as before but now will also find referenced ClusterAnalysisTemplates if clusterScope is set to true.
The UI has also been updated to show both scopes of analysis templates.

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[codecov]

Codecov Report

Attention: Patch coverage is 89.11917% with 21 lines in your changes missing coverage. Please review.

Project coverage is 50.20%. Comparing base (aa66473) to head (aba7dc4).

Files with missing lines	Patch %	Lines
...ternal/api/get_clusteranalysistemplate_v1alpha1.go	82.00%	6 Missing and 3 partials ⚠️
...ntroller/rollouts/api/v1alpha1/analysis_helpers.go	72.22%	5 Missing ⚠️
internal/controller/stages/verification.go	95.06%	3 Missing and 1 partial ⚠️
...rnal/api/list_clusteranalysistemplates_v1alpha1.go	85.71%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2673      +/-   ##
==========================================
+ Coverage   49.97%   50.20%   +0.22%     
==========================================
  Files         276      279       +3     
  Lines       24811    24967     +156     
==========================================
+ Hits        12400    12535     +135     
- Misses      11724    11740      +16     
- Partials      687      692       +5     

☔ View full report in Codecov by Sentry.
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[krancour]

@BenHesketh21 thank you for your patience with this. I've finally started reviewing this in earnest. What I've looked at so far looks solid, but this is big and there's a lot more to still look at.

Due to the size and complexity, I'm going to ask @hiddeco and @Marvin9 for help with this. Group effort.

@hiddeco since this touches the Stages reconciler, which you are actively refactoring, controller changes here probably need to be on your radar.

@Marvin9 if you don't mind looking at the UI portions of this, it would be a huge help.

I am happy to review the remainder -- e.g. API server changes, docs, and such.

We will try to get this into v1.1.0, but it cannot be guaranteed.

[Marvin9]

Could you please split this component out in separate file? You might want to revert (not git revert) this change back to its previous state anyways for the reason I will put in my next comment.

[Marvin9]

Sorry for late review, Overall UI LGTM!

Only thing that is blocking is that since Cluster scoped templates are not really project scoped they should not be in individual projects page. I would suggest to have same clickops experience as in project analysis templates but rather on home page (ie. project list page).

Let me know if you have any question

[BenHesketh21]

@Marvin9 Thanks for the review. Definitely makes sense to take it out of projects and into a different page. Would we want to add a "Analysis Templates" section to the left side menu? or introduce a similar tab system to the project list page?

[BenHesketh21]

@Marvin9 I've gone with the approach of adding an Analysis button to the left hand menu for now, let me know if you would rather it be done a different way.

[krancour]

Would we want to add a "Analysis Templates" section to the left side menu? or introduce a similar tab system to the project list page?

I would suggest, instead, a "Settings" item on the sidebar (with a gear as the icon) and have the UI for this be under a "Verifications" tab on that settings page. We currently lack any sort of UI for these other "cluster-scoped" things:

• Credentials (Really, these are Secrets in designated namespaces since there's no such thing as a cluster-scoped Secret.)
• ServiceAccounts. (Again, these are actually in designated namespaces.)
• ClusterRoles + ClusterRoleBindings for the aforementioned SAs

As we add those, a tabbed settings page would prevent the left sidebar from getting too noisy. And I think this is a fairly conventional approach anyway.

[Marvin9]

I agree with @krancour here. I initially thought put in sidebar and new page but couldn't find a reason to justify its place there (its the only cluster wide settings at the moment). I am fine under "settings" with "verification" tab. I would use Menu component from Antd to have vertical tab.

[BenHesketh21]

I'll get on that, thank you for the pointers

[BenHesketh21]

@Marvin9 One thing I'm not so sure on if you could clarify. I'm looking at a vertical tab using the Menu from Antd. I'm struggling to picture how it would look and where it would go? Here's my thinking so far.

1. It could be like a second sidebar on the left
2. We could move it to the right
3. The verification and others could be children items of the settings button on the left sidebar

Let me know your thoughts, thanks.

[BenHesketh21]

I've done the main parts of this, just waiting to see what the tabs should look like if they need to be vertical. I've put it in a horizontal one for now as it was the default. But the settings page with different tabs should be working.

[Marvin9]

Sure thing @BenHesketh21 here is how I imagine it would look like considering more settings incoming

Let me know if its feasible to you otherwise I would refactor the layout later this PR and for now we can keep the tab as in your screenshot. I will put my comments after we finalise what are we scoping for this PR. Thanks!