feat: RagMetadata and RagDataSchema concepts and Batch API definitions added for Preview

packages/google-cloud-aiplatform/README.md

@@ -330,6 +330,13 @@ Samples are in the [`samples/`][homepage_samples] directory. Each sample's `READ
 | pause schedule | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1/schedule_service.pause_schedule.js) |
 | resume schedule | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1/schedule_service.resume_schedule.js) |
 | update schedule | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1/schedule_service.update_schedule.js) |
+| append event | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1/session_service.append_event.js) |
+| create session | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1/session_service.create_session.js) |
+| delete session | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1/session_service.delete_session.js) |
+| get session | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1/session_service.get_session.js) |
+| list events | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1/session_service.list_events.js) |
+| list sessions | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1/session_service.list_sessions.js) |
+| update session | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1/session_service.update_session.js) |
 | cloud | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1/snippet_metadata_google.cloud.aiplatform.v1.json) |
 | create specialist pool | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1/specialist_pool_service.create_specialist_pool.js) |
 | delete specialist pool | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1/specialist_pool_service.delete_specialist_pool.js) |
@@ -378,6 +385,8 @@ Samples are in the [`samples/`][homepage_samples] directory. Each sample's `READ
 | update rag corpus | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1/vertex_rag_data_service.update_rag_corpus.js) |
 | update rag engine config | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1/vertex_rag_data_service.update_rag_engine_config.js) |
 | upload rag file | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1/vertex_rag_data_service.upload_rag_file.js) |
+| ask contexts | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1/vertex_rag_service.ask_contexts.js) |
+| async retrieve contexts | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1/vertex_rag_service.async_retrieve_contexts.js) |
 | augment prompt | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1/vertex_rag_service.augment_prompt.js) |
 | corroborate content | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1/vertex_rag_service.corroborate_content.js) |
 | retrieve contexts | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1/vertex_rag_service.retrieve_contexts.js) |
@@ -763,18 +772,33 @@ Samples are in the [`samples/`][homepage_samples] directory. Each sample's `READ
 | update tensorboard time series | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/tensorboard_service.update_tensorboard_time_series.js) |
 | write tensorboard experiment data | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/tensorboard_service.write_tensorboard_experiment_data.js) |
 | write tensorboard run data | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/tensorboard_service.write_tensorboard_run_data.js) |
+| batch create rag data schemas | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.batch_create_rag_data_schemas.js) |
+| batch create rag metadata | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.batch_create_rag_metadata.js) |
+| batch delete rag data schemas | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.batch_delete_rag_data_schemas.js) |
+| batch delete rag metadata | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.batch_delete_rag_metadata.js) |
 | create rag corpus | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.create_rag_corpus.js) |
+| create rag data schema | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.create_rag_data_schema.js) |
+| create rag metadata | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.create_rag_metadata.js) |
 | delete rag corpus | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.delete_rag_corpus.js) |
+| delete rag data schema | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.delete_rag_data_schema.js) |
 | delete rag file | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.delete_rag_file.js) |
+| delete rag metadata | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.delete_rag_metadata.js) |
 | get rag corpus | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.get_rag_corpus.js) |
+| get rag data schema | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.get_rag_data_schema.js) |
 | get rag engine config | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.get_rag_engine_config.js) |
 | get rag file | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.get_rag_file.js) |
+| get rag metadata | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.get_rag_metadata.js) |
 | import rag files | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.import_rag_files.js) |
 | list rag corpora | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.list_rag_corpora.js) |
+| list rag data schemas | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.list_rag_data_schemas.js) |
 | list rag files | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.list_rag_files.js) |
+| list rag metadata | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.list_rag_metadata.js) |
 | update rag corpus | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.update_rag_corpus.js) |
 | update rag engine config | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.update_rag_engine_config.js) |
+| update rag metadata | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.update_rag_metadata.js) |
 | upload rag file | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_data_service.upload_rag_file.js) |
+| ask contexts | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_service.ask_contexts.js) |
+| async retrieve contexts | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_service.async_retrieve_contexts.js) |
 | augment prompt | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_service.augment_prompt.js) |
 | corroborate content | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_service.corroborate_content.js) |
 | retrieve contexts | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-cloud-aiplatform/samples/generated/v1beta1/vertex_rag_service.retrieve_contexts.js) |

packages/google-cloud-aiplatform/protos/google/cloud/aiplatform/v1/reasoning_engine.proto

@@ -1,4 +1,4 @@
-// Copyright 2025 Google LLC
+// 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.
@@ -116,6 +116,15 @@ message ReasoningEngineSpec {
       ];
     }
 
+    // The image spec for building an image (within a single build step), based
+    // on the config file (i.e. Dockerfile) in the source directory.
+    message ImageSpec {
+      // Optional. Build arguments to be used. They will be passed through
+      // --build-arg flags.
+      map<string, string> build_args = 1
+          [(google.api.field_behavior) = OPTIONAL];
+    }
+
     // Specifies the configuration for fetching source code from a Git
     // repository that is managed by Developer Connect. This includes the
     // repository, revision, and directory to use.
@@ -187,6 +196,9 @@ message ReasoningEngineSpec {
     oneof language_spec {
       // Configuration for a Python application.
       PythonSpec python_spec = 2;
+
+      // Optional. Configuration for building an image with custom config file.
+      ImageSpec image_spec = 5 [(google.api.field_behavior) = OPTIONAL];
     }
   }