[Feature] Emit Default values in Inventory (#1849)

Author: ajanikow

CHANGELOG.md

@@ -10,6 +10,7 @@
 - (Bugfix) Propagate Gateway Idle Timeout
 - (Feature) Update Authz V1 Definitions
 - (Feature) (Platform) Add Sharding to the Inventory Endpoint
+- (Feature) Emit Default values in Inventory
 
 ## [1.2.46](https://github.com/arangodb/kube-arangodb/tree/1.2.46) (2025-02-24)
 - (Bugfix) Clean Phase change properly during upgrade

integrations/inventory/v1/definition/inventory_test.go

@@ -25,6 +25,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/require"
+	"google.golang.org/protobuf/encoding/protojson"
 
 	ugrpc "github.com/arangodb/kube-arangodb/pkg/util/grpc"
 )
@@ -35,13 +36,16 @@ func Test_State_Marshal(t *testing.T) {
 			Hash: "xyz",
 		},
 		Arangodb: &ArangoDBConfiguration{
-			Mode:    ArangoDBMode_Cluster,
-			Edition: ArangoDBEdition_Enterprise,
-			Version: "1.2.3",
+			Mode:     ArangoDBMode_Cluster,
+			Edition:  ArangoDBEdition_Enterprise,
+			Version:  "1.2.3",
+			Sharding: ArangoDBSharding_Sharded,
 		},
 	}
 
-	data, err := ugrpc.Marshal(&s)
+	data, err := ugrpc.Marshal(&s, func(in *protojson.MarshalOptions) {
+		in.EmitDefaultValues = true
+	})
 	require.NoError(t, err)
 
 	t.Log(string(data))

pkg/deployment/resources/config_map_gateway.go

@@ -26,6 +26,7 @@ import (
 	"path"
 	"path/filepath"
 
+	"google.golang.org/protobuf/encoding/protojson"
 	core "k8s.io/api/core/v1"
 	kerrors "k8s.io/apimachinery/pkg/api/errors"
 	meta "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -75,6 +76,11 @@ func (r *Resources) ensureGatewayConfig(ctx context.Context, cachedStatus inspec
 				Arangodb: pbInventoryV1.NewArangoDBConfiguration(r.context.GetSpec(), r.context.GetStatus()),
 			},
 			Marshaller: ugrpc.Marshal[*pbInventoryV1.Inventory],
+			Options: []util.Mod[protojson.MarshalOptions]{
+				func(in *protojson.MarshalOptions) {
+					in.EmitDefaultValues = true
+				},
+			},
 		},
 	}
 

pkg/deployment/resources/gateway/gateway_config_destination_static.go

@@ -42,6 +42,8 @@ type ConfigDestinationStatic[T any] struct {
 	Response T `json:"response,omitempty"`
 
 	Marshaller ConfigDestinationStaticMarshaller[T] `json:"-"`
+
+	Options []util.Mod[protojson.MarshalOptions]
 }
 
 func (c *ConfigDestinationStatic[T]) Validate() error {