add trace starts for each object type

internal/service/users.go

@@ -4,6 +4,8 @@ import (
 	"context"
 
 	"go.infratographer.com/x/gidx"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/trace"
 )
 
 // IsUser checks the provided id has the metal user prefix.
@@ -29,8 +31,27 @@ func (s *service) IsAssignableResource(id gidx.PrefixedID) bool {
 	return false
 }
 
+func stringIDs(ids []gidx.PrefixedID) []string {
+	result := make([]string, len(ids))
+
+	for i, id := range ids {
+		result[i] = id.String()
+	}
+
+	return result
+}
+
 // Assignuser assigns the provided users to the given resource ids.
 func (s *service) AssignUser(ctx context.Context, userID gidx.PrefixedID, resourceIDs ...gidx.PrefixedID) error {
+	ctx, span := tracer.Start(ctx, "AssignUser",
+		trace.WithAttributes(
+			attribute.String("user.id", userID.String()),
+			attribute.StringSlice("user.resource_assignments", stringIDs(resourceIDs)),
+		),
+	)
+
+	defer span.End()
+
 	var totalResources, rolesChanged, assignmentsChanged int
 
 	mlogger := s.logger.With("member.id", userID.String())
@@ -74,6 +95,15 @@ func (s *service) AssignUser(ctx context.Context, userID gidx.PrefixedID, resour
 
 // UnassignUser removes the assignment for the provided user id to the given resources.
 func (s *service) UnassignUser(ctx context.Context, userID gidx.PrefixedID, resourceIDs ...gidx.PrefixedID) error {
+	ctx, span := tracer.Start(ctx, "UnassignUser",
+		trace.WithAttributes(
+			attribute.String("user.id", userID.String()),
+			attribute.StringSlice("user.resource_assignments", stringIDs(resourceIDs)),
+		),
+	)
+
+	defer span.End()
+
 	for _, resourceID := range resourceIDs {
 		rlogger := s.logger.With("user.id", userID, "resource.id", resourceID)