Get host assignment by repository ID

Praefect's routing should use repository ID consistently in all of the
queries in order to avoid races where the external key of the repository
changes between the various queries. This commit updates GetHostAssignments
to get assignments by the repository's ID rather than its virtual storage
and relative path.

1 files changed, 2 insertions, 2 deletions

diff --git a/internal/praefect/router_per_repository.go b/internal/praefect/router_per_repository.go
index 431406acb..e3455c3a9 100644
--- a/internal/praefect/router_per_repository.go
+++ b/internal/praefect/router_per_repository.go
@@ -25,7 +25,7 @@ var errPrimaryUnassigned = errors.New("primary node is not assigned")
 type AssignmentGetter interface {
 	// GetHostAssignments returns the names of the storages assigned to host the repository.
 	// The primary node must always be assigned.
-	GetHostAssignments(ctx context.Context, virtualStorage, relativePath string) ([]string, error)
+	GetHostAssignments(ctx context.Context, virtualStorage string, repositoryID int64) ([]string, error)
 }
 
 // ErrNoSuitableNode is returned when there is not suitable node to serve a request.
@@ -207,7 +207,7 @@ func (r *PerRepositoryRouter) RouteRepositoryMutator(ctx context.Context, virtua
 		return RepositoryMutatorRoute{}, ErrRepositoryReadOnly
 	}
 
-	assignedStorages, err := r.ag.GetHostAssignments(ctx, virtualStorage, relativePath)
+	assignedStorages, err := r.ag.GetHostAssignments(ctx, virtualStorage, repositoryID)
 	if err != nil {
 		return RepositoryMutatorRoute{}, fmt.Errorf("get host assignments: %w", err)
 	}