Epic Goal

• Users should be able to specify multiple sources to add services to the application via the UI. Argo CD should compile all the sources and reconcile each source individually for creating the application.
• The UI should allow users to add multiple sources while creating the application. For each source, UI should allow users to add multiple external values files Helm projects. 

Why is this important?

• The main motivation behind this enhancement proposal is to allow users to create an application using services that are stored in various sources and to do this in argocd through the UI. 

Scenarios

1. ...

Acceptance Criteria (Mandatory)

• Downstream is updated with the changes
• [in refinement]

Dependencies (internal and external)

1. ...

Previous Work (Optional):

1. https://github.com/argoproj/argo-cd/blob/master/docs/proposals/multiple-sources-for-applications.md 

Open questions::

1. What fields should the UI have to support multiple sources? 
2. How should this experience in the UI be different from single source applications?

Done Checklist

• Acceptance criteria are met
• Non-functional properties of the Feature have been validated (such as performance, resource, UX, security or privacy aspects)
• User Journey automation is delivered
• Support and SRE teams are provided with enough skills to support the feature in production environment