Add validator job with BQ differ

import-automation/executor/app/executor/import_executor.py

@@ -1066,6 +1066,16 @@ def _upload_import_inputs(self, import_dir: str, output_dir: str,
             src=manifest_file,
             dest=dest,
         )
+        # Copy import-specific validation config file if specified
+        validation_config_file = import_spec.get('validation_config_file')
+        if validation_config_file:
+            val_cfg_src = os.path.join(import_dir, validation_config_file)
+            if os.path.exists(val_cfg_src):
+                self._upload_file_helper(
+                    src=val_cfg_src,
+                    dest=
+                    f'{output_dir}/{version}/{os.path.basename(validation_config_file)}',
+                )
         import_inputs = import_spec.get('import_inputs', [])
         errors = []
         data_size = 0

import-automation/validator/Dockerfile

@@ -0,0 +1,35 @@
+# 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.
+
+FROM python:3.12-slim
+
+WORKDIR /app
+
+# Install fast uv package installer and dependencies
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
+COPY import-automation/validator/requirements.txt /app/requirements.txt
+RUN uv pip install --system --no-cache -r /app/requirements.txt
+
+# Copy required tools and utilities directly from the data repo
+COPY util/ /app/util/
+COPY tools/statvar_importer/ /app/tools/statvar_importer/
+COPY tools/import_differ/ /app/tools/import_differ/
+COPY tools/import_validation/ /app/tools/import_validation/
+COPY import-automation/validator/main.py /app/main.py
+COPY import-automation/validator/validator_test.py /app/validator_test.py
+
+ENV PYTHONPATH="/app:/app/util:/app/tools/import_differ:/app/tools/import_validation:/app/tools/statvar_importer"
+ENV PYTHONUNBUFFERED=1
+
+ENTRYPOINT ["python", "/app/main.py"]

import-automation/validator/cloudbuild.yaml

@@ -0,0 +1,67 @@
+# 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.
+#
+# Builds the docker image of import validator, verifies using unit tests,
+# and pushes it to artifact registry.
+#
+# Run it from the data repo root using:
+# gcloud builds submit --config=import-automation/validator/cloudbuild.yaml \
+#   --substitutions=_DOCKER_IMAGE="us-docker.pkg.dev/datcom-ci/gcr.io/dc-import-validator" .
+
+steps:
+  # Docker Build from data repo root
+  - name: 'gcr.io/cloud-builders/docker'
+    id: 'build'
+    entrypoint: 'bash'
+    args:
+      - '-c'
+      - |
+        docker build -f import-automation/validator/Dockerfile \
+          -t ${_DOCKER_IMAGE}:${_TAG} \
+          -t ${_DOCKER_IMAGE}:latest .
+    env: ['DOCKER_BUILDKIT=1']
+
+  # Docker push to Google Artifact Registry
+  - name: 'gcr.io/cloud-builders/docker'
+    id: 'push'
+    args: ['push', '${_DOCKER_IMAGE}', '--all-tags']
+
+  # Run unit tests inside built container
+  - name: '${_DOCKER_IMAGE}:${_TAG}'
+    id: 'unit-test'
+    entrypoint: 'pytest'
+    args:
+      - '/app/validator_test.py'
+      - '/app/tools/import_differ/bigquery_differ_test.py'
+      - '/app/tools/import_validation/runner_test.py'
+    waitFor: ['push']
+
+  # Tag image as stable and push
+  - name: 'gcr.io/cloud-builders/docker'
+    id: 'tag'
+    entrypoint: 'bash'
+    waitFor: ['unit-test']
+    args:
+      - '-c'
+      - |
+        docker tag ${_DOCKER_IMAGE}:${_TAG} ${_DOCKER_IMAGE}:stable \
+        && docker push ${_DOCKER_IMAGE}:stable
+
+substitutions:
+  _DOCKER_IMAGE: 'us-docker.pkg.dev/datcom-ci/gcr.io/dc-import-validator'
+  _TAG: 'latest'
+
+options:
+  logging: CLOUD_LOGGING_ONLY
+  dynamicSubstitutions: true