Add new agent-gateway module (#3931)

tests/modules/agent_gateway/examples/context.yaml

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+# Copyright 2026 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.
+
+values:
+  module.agent-gateway.google_network_services_agent_gateway.default:
+    description: Terraform managed.
+    effective_labels:
+      goog-terraform-provisioned: 'true'
+    google_managed:
+    - governed_access_path: AGENT_TO_ANYWHERE
+    labels: null
+    location: europe-west1
+    name: my-gateway
+    network_config:
+    - egress:
+      - network_attachment: projects/my-project-id/regions/europe-west1/serviceAttachments/my-sa
+    project: my-prj-id
+    protocols:
+    - MCP
+    registries: null
+    self_managed: []
+    terraform_labels:
+      goog-terraform-provisioned: 'true'
+    timeouts: null
+
+counts:
+  google_network_services_agent_gateway: 1
+  modules: 1
+  resources: 1
+
+outputs: {}

tests/modules/agent_gateway/examples/minimal.yaml

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+# Copyright 2026 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.
+
+values:
+  module.agent-gateway.google_network_services_agent_gateway.default:
+    description: Terraform managed.
+    effective_labels:
+      goog-terraform-provisioned: 'true'
+    google_managed:
+    - governed_access_path: CLIENT_TO_AGENT
+    labels: null
+    location: europe-west1
+    name: my-gateway
+    network_config: []
+    project: my-project-id
+    protocols:
+    - MCP
+    registries: null
+    self_managed: []
+    terraform_labels:
+      goog-terraform-provisioned: 'true'
+    timeouts: null
+
+counts:
+  google_network_services_agent_gateway: 1
+  modules: 1
+  resources: 1
+
+outputs: {}

tests/modules/agent_gateway/examples/proxy.yaml

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+# Copyright 2026 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.
+
+values:
+  module.agent-gateway.google_network_services_agent_gateway.default:
+    description: Terraform managed.
+    effective_labels:
+      goog-terraform-provisioned: 'true'
+    google_managed: []
+    labels: null
+    location: europe-west1
+    name: my-gateway
+    network_config: []
+    project: my-project-id
+    protocols:
+    - MCP
+    registries: null
+    self_managed:
+    - resource_uri: my-proxy-uri
+    terraform_labels:
+      goog-terraform-provisioned: 'true'
+    timeouts: null
+
+counts:
+  google_network_services_agent_gateway: 1
+  modules: 1
+  resources: 1
+
+outputs: {}

tests/modules/agent_gateway/examples/psc-i.yaml

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+# Copyright 2026 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.
+
+values:
+  module.agent-gateway.google_network_services_agent_gateway.default:
+    description: Terraform managed.
+    effective_labels:
+      goog-terraform-provisioned: 'true'
+    google_managed:
+    - governed_access_path: AGENT_TO_ANYWHERE
+    labels: null
+    location: europe-west1
+    name: my-gateway
+    network_config:
+    - egress:
+      - network_attachment: projects/my-project-id/regions/europe-west1/serviceAttachments/my-sa
+    project: my-project-id
+    protocols:
+    - MCP
+    registries: null
+    self_managed: []
+    terraform_labels:
+      goog-terraform-provisioned: 'true'
+    timeouts: null
+
+counts:
+  google_network_services_agent_gateway: 1
+  modules: 1
+  resources: 1
+
+outputs: {}