ensure consul config write has snake case conversions for MeshGateway (#6062)

command/config/write/config_write.go

@@ -138,7 +138,13 @@ func newDecodeConfigEntry(raw map[string]interface{}) (api.ConfigEntry, error) {
 
 	switch entry.GetKind() {
 	case api.ProxyDefaults:
+		translateKeysDict = map[string]string{
+			"mesh_gateway": "meshgateway",
+		}
 	case api.ServiceDefaults:
+		translateKeysDict = map[string]string{
+			"mesh_gateway": "meshgateway",
+		}
 	case api.ServiceRouter:
 		skipWhenPatching = []string{
 			"routes",

command/config/write/config_write_test.go

@@ -145,6 +145,9 @@ func TestParseConfigEntry(t *testing.T) {
 					"moar" = "config"
 				  }
 				}
+				mesh_gateway {
+					mode = "remote"
+				}
 			`,
 			camel: `
 				Kind = "proxy-defaults"
@@ -156,6 +159,9 @@ func TestParseConfigEntry(t *testing.T) {
 					"moar" = "config"
 				  }
 				}
+				MeshGateway {
+					Mode = "remote"
+				}
 			`,
 			expect: &api.ProxyConfigEntry{
 				Kind: "proxy-defaults",
@@ -167,6 +173,9 @@ func TestParseConfigEntry(t *testing.T) {
 						"moar": "config",
 					},
 				},
+				MeshGateway: api.MeshGatewayConfig{
+					Mode: api.MeshGatewayModeRemote,
+				},
 			},
 		},
 		{
@@ -175,16 +184,25 @@ func TestParseConfigEntry(t *testing.T) {
 				kind = "service-defaults"
 				name = "main"
 				protocol = "http"
+				mesh_gateway {
+					mode = "remote"
+				}
 			`,
 			camel: `
 				Kind = "service-defaults"
 				Name = "main"
 				Protocol = "http"
+				MeshGateway {
+					Mode = "remote"
+				}
 			`,
 			expect: &api.ServiceConfigEntry{
 				Kind:     "service-defaults",
 				Name:     "main",
 				Protocol: "http",
+				MeshGateway: api.MeshGatewayConfig{
+					Mode: api.MeshGatewayModeRemote,
+				},
 			},
 		},
 		{