UI: Show more information in Promotion Table view

[rbreeze]

Currently, we don't show much detail in the Promotions Table of the Stage panel.

We should display:

• URL (to PR or commit)
• More information about Freight, or at least link to more detail (name isn't helpful)
• Information about the Argo CD Application status (if applicable)

[rbreeze]

TLDR; #1979 is the best we will get for this without some questionable API decisions.

In #1979, I added links to Freight Details in this table. I also added a Tooltip to the Freight ID column, such that when you hover over it, the Freight alias appears.

Implementation-wise, this is accomplished by doing an ad-hoc API request every time a user hovers. This is necessary because the ListPromotions API does not contain freight information besides just the freight name (ID), nor should it IMO (would require additional K8S API calls in the endpoint to accomplish). Likewise, the UI shouldn't call the GetFreight API repeatedly on this page.

@krancour @hiddeco do you have thoughts here?

[hiddeco]

The only optimization I can think of is temporarily caching the response in the frontend as the Freight is almost always static (the single exception being: if someone manually changes the alias).

Providing e.g. a special endpoint for a more lightweight response would not yield a better result for the backend, which would still have to retrieve the object to provide a compressed view.

[krancour]

ListPromotions API does not contain freight information besides just the freight name (ID), nor should it IMO

I agree with this. Aliases are mutable and if we included information about aliases in a FreightReference, we'd have to track down and fix those any time a piece of Freight's alias changes. It's simply not worth it.

Edit: I also agree with @hiddeco about not augmenting list promo results with that information.

We could, theoretically, add a more bespoke API endpoint just for use with this view, where you supply a list of Freight IDs and get back the corresponding list of aliases.

I wouldn't object if you wanted to do that.

[rbreeze]

@hiddeco @krancour I agree with you both.

We could, theoretically, add a more bespoke API endpoint just for use with this view, where you supply a list of Freight IDs and get back the corresponding list of aliases.

TBH, I don't think it's worth it. The tooltip solution isn't as nice as if we had the alias inline, but I think it gets 90% of the way there. I'll go ahead and close this issue but feel free to reopen if you feel we should do more here