Application is a definition of Application resource.

Source overrides the source definition set in the application. This is typically set in a Rollback operation and is nil during a Sync operation

AppProject provides a logical grouping of applications, providing controls for: where the apps may deploy to (cluster whitelist) what may be deployed (repository whitelist, resource whitelist/blacklist) who can access these applications (roles, OIDC group claims bindings) and what they can do (RBAC policies) automation access to these roles (JWT tokens)