Feature: Example using ArgoCD ApplicationSet scm provider (git) generator

[csantanapr]

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Problem Statement

currently CNOE backstage template do the registration of the ArgoCD and this API doesn't support all the fields.

Possible Solution

I think using ApplicationSet to generate the ArgoCD App when a new git repo is created by backstage will allow more flexibility on the way we generate/register the ArgoCD App or group or Apps using scm provider (git) generator https://argo-cd.readthedocs.io/en/stable/operator-manual/applicationset/Generators-SCM-Provider/

Update the reference implementations to use this patterns vs. registering with backstage template

We need to check if this would work with gitea

Alternatives Considered

No response

[nabuskey]

The AWS ref implementation uses it. Maybe we can start with it: https://github.com/cnoe-io/reference-implementation-aws/blob/main/setups/argocd/application-set.yaml

When I was working on this, it worked well with GitHub but I had trouble with Gitea. Maybe it's gotten better.