Commit 8cf5fe40 authored by Dimitrios Gogos's avatar Dimitrios Gogos
Browse files

fix: reject duplicate application instantiation in app instance flow

parent 5cc48529

oeg/app-instance-flow.md

+7 −0
Changes for oeg/app-instance-flow.md: 7 added lines, 0 removed lines.
Original line number Diff line number Diff line
@@ -158,6 +158,13 @@ POST /appinstances (CAMARA NBI) 
  6a. Resolve appId → app_registrations row

       (400 if unknown — createAppInstance's vendored response codes have no 404,

        see external-specs/index.md; yields the internal app_registration_id, ADR-0010)

  6b. Reject duplicate instantiation:

       if a non-terminal app_instances row already exists for

       (app_registration_id, edgeCloudZoneId) → 409 ALREADY_EXISTS

       "Application already instantiated in the given Edge Cloud Zone"

       (vendored spec's documented 409; terminal = failed/terminated, which

        do not block re-instantiation). Checked after 6 so an idempotent

        retry replays instead of conflicting.

  7. Generate operation_id (UUID)          ← internal platform operation handle

  8. Generate app_instance_id (UUID)       ← the appInstanceId (one, single zone)

  9. Write operations row → PENDING, and one app_instances row