- Creates new route
- Creates new controller action
- Creates call stack:
Clusterss::ApplciationsController calls -->
Clusters::Applications::UpdateService calls -->
Clusters::Applications::ScheduleUpdateService calls -->
ClusterUpdateAppWorker calls -->
Clusters::Applications::PatchService -->
ClusterWaitForAppInstallationWorker
DRY req params
Adds gcp_cluster:cluster_update_app queue
Schedule_update_service is uneeded
Extract common logic to a parent class (UpdateService will need it)
Introduce new UpdateService
Fix rescue class namespace
Fix RuboCop offenses
Adds BaseService for create and update services
Remove request_handler code duplication
Fixes update command
Move update_command to ApplicationCore so all apps can use it
Adds tests for Knative update_command
Adds specs for PatchService
Raise error if update receives an unistalled app
Adds update_service spec
Fix RuboCop offense
Use subject in favor of go
Adds update endpoint specs for project namespace
Adds update endpoint specs for group namespace
