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# to you under the Apache License, Version 2.0 (the
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"""
Example Airflow DAG for Google Cloud Dataform service
"""
from __future__ import annotations
import os
from datetime import datetime
from google.cloud.dataform_v1beta1 import WorkflowInvocation, WorkflowInvocationAction
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError
from airflow.models.dag import DAG
from airflow.providers.google.cloud.operators.bigquery import BigQueryDeleteDatasetOperator
from airflow.providers.google.cloud.operators.dataform import (
DataformCancelWorkflowInvocationOperator,
DataformCreateCompilationResultOperator,
DataformCreateRepositoryOperator,
DataformCreateWorkflowInvocationOperator,
DataformCreateWorkspaceOperator,
DataformDeleteRepositoryOperator,
DataformDeleteWorkspaceOperator,
DataformGetCompilationResultOperator,
DataformGetWorkflowInvocationOperator,
DataformInstallNpmPackagesOperator,
DataformMakeDirectoryOperator,
DataformQueryWorkflowInvocationActionsOperator,
DataformRemoveDirectoryOperator,
DataformRemoveFileOperator,
DataformWriteFileOperator,
)
from airflow.providers.google.cloud.sensors.dataform import (
DataformWorkflowInvocationActionStateSensor,
DataformWorkflowInvocationStateSensor,
)
from airflow.providers.google.cloud.utils.dataform import make_initialization_workspace_flow
from tests_common.test_utils.version_compat import AIRFLOW_V_3_0_PLUS
if AIRFLOW_V_3_0_PLUS:
from airflow.sdk import task
else:
from airflow.decorators import task # type: ignore[attr-defined,no-redef]
try:
from airflow.sdk import TriggerRule
except ImportError:
# Compatibility for Airflow < 3.1
from airflow.utils.trigger_rule import TriggerRule # type: ignore[no-redef,attr-defined]
from system.google import DEFAULT_GCP_SYSTEM_TEST_PROJECT_ID
ENV_ID = os.environ.get("SYSTEM_TESTS_ENV_ID", "default")
PROJECT_ID = os.environ.get("SYSTEM_TESTS_GCP_PROJECT") or DEFAULT_GCP_SYSTEM_TEST_PROJECT_ID
DAG_ID = "dataform"
REPOSITORY_ID = f"example_dataform_repository_{ENV_ID}"
REGION = "us-central1"
WORKSPACE_ID = f"example_dataform_workspace_{ENV_ID}"
DATAFORM_SCHEMA_NAME = f"schema_{DAG_ID}_{ENV_ID}"
# To run it in your project with "strict act-as mode" you need to configure the
# https://docs.cloud.google.com/dataform/docs/strict-act-as-mode#grant-iam-roles,
# against the <DATAFORM_ACT_AS_SA> you've plan to use.
DATAFORM_ACT_AS_SA = os.environ.get("DATAFORM_ACT_AS_SA")
# This DAG is not self-run we need to do some extra configuration to execute it in automation process
with DAG(
dag_id=DAG_ID,
schedule="@once",
start_date=datetime(2021, 1, 1),
catchup=False,
tags=["example", "dataform"],
) as dag:
@task(task_id="get_project_number")
def get_project_number():
"""Helper function to retrieve the number of the project based on PROJECT_ID"""
try:
with build("cloudresourcemanager", "v1") as service:
response = service.projects().get(projectId=PROJECT_ID).execute()
return response["projectNumber"]
except HttpError as exc:
if exc.status_code == 403:
raise ValueError(
"No project found with specified name, "
"or caller does not have permissions to read specified project"
)
raise exc
@task(task_id="get_dataform_sa")
def get_dataform_sa(project_number):
if DATAFORM_ACT_AS_SA:
return DATAFORM_ACT_AS_SA
return f"{project_number}-compute@developer.gserviceaccount.com"
project_number_result = get_project_number()
service_account = get_dataform_sa(project_number_result)
# [START howto_operator_create_repository]
make_repository = DataformCreateRepositoryOperator(
task_id="make-repository",
project_id=PROJECT_ID,
region=REGION,
repository_id=REPOSITORY_ID,
)
# [END howto_operator_create_repository]
# [START howto_operator_create_workspace]
make_workspace = DataformCreateWorkspaceOperator(
task_id="make-workspace",
project_id=PROJECT_ID,
region=REGION,
repository_id=REPOSITORY_ID,
workspace_id=WORKSPACE_ID,
)
# [END howto_operator_create_workspace]
# [START howto_initialize_workspace]
first_initialization_step, last_initialization_step = make_initialization_workspace_flow(
project_id=PROJECT_ID,
region=REGION,
repository_id=REPOSITORY_ID,
workspace_id=WORKSPACE_ID,
package_name=f"dataform_package_{ENV_ID}",
without_installation=True,
dataform_schema_name=DATAFORM_SCHEMA_NAME,
)
# [END howto_initialize_workspace]
# [START howto_operator_install_npm_packages]
install_npm_packages = DataformInstallNpmPackagesOperator(
task_id="install-npm-packages",
project_id=PROJECT_ID,
region=REGION,
repository_id=REPOSITORY_ID,
workspace_id=WORKSPACE_ID,
)
# [END howto_operator_install_npm_packages]
# [START howto_operator_create_compilation_result]
create_compilation_result = DataformCreateCompilationResultOperator(
task_id="create-compilation-result",
project_id=PROJECT_ID,
region=REGION,
repository_id=REPOSITORY_ID,
compilation_result={
"git_commitish": "main",
"workspace": (
f"projects/{PROJECT_ID}/locations/{REGION}/repositories/{REPOSITORY_ID}/"
f"workspaces/{WORKSPACE_ID}"
),
},
)
# [END howto_operator_create_compilation_result]
# [START howto_operator_get_compilation_result]
get_compilation_result = DataformGetCompilationResultOperator(
task_id="get-compilation-result",
project_id=PROJECT_ID,
region=REGION,
repository_id=REPOSITORY_ID,
compilation_result_id=(
"{{ task_instance.xcom_pull('create-compilation-result')['name'].split('/')[-1] }}"
),
)
# [END howto_operator_get_compilation_result]]
# [START howto_operator_create_workflow_invocation]
create_workflow_invocation = DataformCreateWorkflowInvocationOperator(
task_id="create-workflow-invocation",
project_id=PROJECT_ID,
region=REGION,
repository_id=REPOSITORY_ID,
workflow_invocation={
"compilation_result": "{{ task_instance.xcom_pull('create-compilation-result')['name'] }}",
"invocation_config": {
"service_account": service_account,
},
},
)
# [END howto_operator_create_workflow_invocation]
# [START howto_operator_create_workflow_invocation_async]
create_workflow_invocation_async = DataformCreateWorkflowInvocationOperator(
task_id="create-workflow-invocation-async",
project_id=PROJECT_ID,
region=REGION,
repository_id=REPOSITORY_ID,
asynchronous=True,
workflow_invocation={
"compilation_result": "{{ task_instance.xcom_pull('create-compilation-result')['name'] }}",
"invocation_config": {
"service_account": service_account,
},
},
)
is_workflow_invocation_done = DataformWorkflowInvocationStateSensor(
task_id="is-workflow-invocation-done",
project_id=PROJECT_ID,
region=REGION,
repository_id=REPOSITORY_ID,
workflow_invocation_id=(
"{{ task_instance.xcom_pull('create-workflow-invocation-async')['name'].split('/')[-1] }}"
),
expected_statuses={WorkflowInvocation.State.SUCCEEDED},
failure_statuses={
WorkflowInvocationAction.State.SKIPPED,
WorkflowInvocationAction.State.DISABLED,
WorkflowInvocationAction.State.CANCELLED,
WorkflowInvocationAction.State.FAILED,
},
)
# [END howto_operator_create_workflow_invocation_async]
# [START howto_operator_create_workflow_invocation_action_async]
is_workflow_invocation_action_done = DataformWorkflowInvocationActionStateSensor(
task_id="is-workflow-invocation-action-done",
project_id=PROJECT_ID,
region=REGION,
repository_id=REPOSITORY_ID,
workflow_invocation_id=(
"{{ task_instance.xcom_pull('create-workflow-invocation-async')['name'].split('/')[-1] }}"
),
target_name="first_view",
expected_statuses={WorkflowInvocationAction.State.SUCCEEDED},
failure_statuses={
WorkflowInvocationAction.State.SKIPPED,
WorkflowInvocationAction.State.DISABLED,
WorkflowInvocationAction.State.CANCELLED,
WorkflowInvocationAction.State.FAILED,
},
)
# [END howto_operator_create_workflow_invocation_action_async]
# [START howto_operator_get_workflow_invocation]
get_workflow_invocation = DataformGetWorkflowInvocationOperator(
task_id="get-workflow-invocation",
project_id=PROJECT_ID,
region=REGION,
repository_id=REPOSITORY_ID,
workflow_invocation_id=(
"{{ task_instance.xcom_pull('create-workflow-invocation')['name'].split('/')[-1] }}"
),
)
# [END howto_operator_get_workflow_invocation]
# [START howto_operator_query_workflow_invocation_actions]
query_workflow_invocation_actions = DataformQueryWorkflowInvocationActionsOperator(
task_id="query-workflow-invocation-actions",
project_id=PROJECT_ID,
region=REGION,
repository_id=REPOSITORY_ID,
workflow_invocation_id=(
"{{ task_instance.xcom_pull('create-workflow-invocation')['name'].split('/')[-1] }}"
),
)
# [END howto_operator_query_workflow_invocation_actions]
create_workflow_invocation_for_cancel = DataformCreateWorkflowInvocationOperator(
task_id="create-workflow-invocation-for-cancel",
project_id=PROJECT_ID,
region=REGION,
repository_id=REPOSITORY_ID,
workflow_invocation={
"compilation_result": "{{ task_instance.xcom_pull('create-compilation-result')['name'] }}",
"invocation_config": {
"service_account": service_account,
},
},
asynchronous=True,
)
# [START howto_operator_cancel_workflow_invocation]
cancel_workflow_invocation = DataformCancelWorkflowInvocationOperator(
task_id="cancel-workflow-invocation",
project_id=PROJECT_ID,
region=REGION,
repository_id=REPOSITORY_ID,
workflow_invocation_id=(
"{{ task_instance.xcom_pull('create-workflow-invocation-for-cancel')['name'].split('/')[-1] }}"
),
)
# [END howto_operator_cancel_workflow_invocation]
# [START howto_operator_make_directory]
make_test_directory = DataformMakeDirectoryOperator(
task_id="make-test-directory",
project_id=PROJECT_ID,
region=REGION,
repository_id=REPOSITORY_ID,
workspace_id=WORKSPACE_ID,
directory_path="test",
)
# [END howto_operator_make_directory]
# [START howto_operator_write_file]
test_file_content = b"""
test test for test file
"""
write_test_file = DataformWriteFileOperator(
task_id="make-test-file",
project_id=PROJECT_ID,
region=REGION,
repository_id=REPOSITORY_ID,
workspace_id=WORKSPACE_ID,
filepath="test/test.txt",
contents=test_file_content,
)
# [END howto_operator_write_file]
# [START howto_operator_remove_file]
remove_test_file = DataformRemoveFileOperator(
task_id="remove-test-file",
project_id=PROJECT_ID,
region=REGION,
repository_id=REPOSITORY_ID,
workspace_id=WORKSPACE_ID,
filepath="test/test.txt",
)
# [END howto_operator_remove_file]
# [START howto_operator_remove_directory]
remove_test_directory = DataformRemoveDirectoryOperator(
task_id="remove-test-directory",
project_id=PROJECT_ID,
region=REGION,
repository_id=REPOSITORY_ID,
workspace_id=WORKSPACE_ID,
directory_path="test",
)
# [END howto_operator_remove_directory]
delete_dataset = BigQueryDeleteDatasetOperator(
task_id="delete-dataset",
dataset_id=DATAFORM_SCHEMA_NAME,
delete_contents=True,
trigger_rule=TriggerRule.ALL_DONE,
)
# [START howto_operator_delete_workspace]
delete_workspace = DataformDeleteWorkspaceOperator(
task_id="delete-workspace",
project_id=PROJECT_ID,
region=REGION,
repository_id=REPOSITORY_ID,
workspace_id=WORKSPACE_ID,
trigger_rule=TriggerRule.ALL_DONE,
)
# [END howto_operator_delete_workspace]
# [START howto_operator_delete_repository]
delete_repository = DataformDeleteRepositoryOperator(
task_id="delete-repository",
project_id=PROJECT_ID,
region=REGION,
repository_id=REPOSITORY_ID,
trigger_rule=TriggerRule.ALL_DONE,
)
# [END howto_operator_delete_repository]
(
# TEST SETUP
service_account
>> make_repository
>> make_workspace
# TEST BODY
>> first_initialization_step
)
(
last_initialization_step
>> make_test_directory
>> write_test_file
>> remove_test_file
>> remove_test_directory
>> delete_dataset
)
(
remove_test_directory
>> install_npm_packages
>> create_compilation_result
>> [
get_compilation_result,
create_workflow_invocation,
create_workflow_invocation_async,
create_workflow_invocation_for_cancel,
]
)
(
create_workflow_invocation
>> [get_workflow_invocation, query_workflow_invocation_actions]
>> delete_dataset
)
(
create_workflow_invocation_async
>> is_workflow_invocation_done
>> is_workflow_invocation_action_done
>> delete_dataset
)
create_workflow_invocation_for_cancel >> cancel_workflow_invocation >> delete_dataset
(
# TEST TEARDOWN
delete_dataset >> delete_workspace >> delete_repository
)
# ### Everything below this line is not part of example ###
# ### Just for system tests purpose ###
from tests_common.test_utils.watcher import watcher
# This test needs watcher in order to properly mark success/failure
# when "tearDown" task with trigger rule is part of the DAG
list(dag.tasks) >> watcher()
from tests_common.test_utils.system_tests import get_test_run # noqa: E402
# Needed to run the example DAG with pytest (see: contributing-docs/testing/system_tests.rst)
test_run = get_test_run(dag)