feat(securitycenter): add sample for setting custom endpoint

.github/CODEOWNERS

@@ -20,6 +20,7 @@
 /network_security/intercept/  @terraform-google-modules/pm2-team @terraform-google-modules/terraform-samples-reviewers
 /network_security/mirroring/  @terraform-google-modules/pm2-team @terraform-google-modules/terraform-samples-reviewers
 /privateca/                   @terraform-google-modules/dee-infra @terraform-google-modules/terraform-samples-reviewers
+/securitycenter/          @terraform-google-modules/gcp-security-command-center @terraform-google-modules/terraform-samples-reviewers
 /storage/                     @terraform-google-modules/cloud-storage-dpe @terraform-google-modules/terraform-samples-reviewers
 /traffic_director/            @terraform-google-modules/dee-infra @terraform-google-modules/terraform-samples-reviewers
 /vpc/                         @terraform-google-modules/dee-infra @terraform-google-modules/terraform-samples-reviewers

securitycenter/securitycenter_v2_endpoint_us/main.tf

@@ -0,0 +1,22 @@
+/**
+ * Copyright 2025 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+# [START securitycenter_v2_endpoint_us]
+provider "google" {
+  alias                              = "securitycenter_v2_endpoint_us"
+  security_center_v2_custom_endpoint = "https://securitycenter.us.rep.googleapis.com/v2/"
+}
+# [END securitycenter_v2_endpoint_us]

securitycenter/securitycenter_v2_endpoint_us/test.yaml

@@ -0,0 +1,20 @@
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+apiVersion: blueprints.cloud.google.com/v1alpha1
+kind: BlueprintTest
+metadata:
+  name: securitycenter_v2_endpoint_us
+spec:
+  skip: true