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Example Airflow DAG that displays interactions with Google Cloud Build.
This DAG relies on the following OS environment variables:
* PROJECT_ID - Google Cloud Project to use for the Cloud Function.
from __future__ import annotations

import os
from datetime import datetime
from typing import Any, cast

from airflow import models
from airflow.models.baseoperator import chain
from airflow.models.xcom_arg import XComArg
from import (

[docs]ENV_ID = os.environ.get("SYSTEM_TESTS_ENV_ID")
[docs]PROJECT_ID = os.environ.get("SYSTEM_TESTS_GCP_PROJECT")
[docs]DAG_ID = "example_gcp_cloud_build_trigger"
[docs]GCP_SOURCE_REPOSITORY_NAME = "test-cloud-build-repo"
# [START howto_operator_gcp_create_build_trigger_body]
[docs]create_build_trigger_body = { "name": f"test-cloud-build-trigger-{ENV_ID}", "trigger_template": { "project_id": PROJECT_ID, "repo_name": GCP_SOURCE_REPOSITORY_NAME, "branch_name": "main", }, "filename": "example_cloud_build.yaml",
} # [END howto_operator_gcp_create_build_trigger_body] # [START howto_operator_gcp_update_build_trigger_body]
[docs]update_build_trigger_body = { "name": f"test-cloud-build-trigger-{ENV_ID}", "trigger_template": { "project_id": PROJECT_ID, "repo_name": GCP_SOURCE_REPOSITORY_NAME, "branch_name": "master", }, "filename": "example_cloud_build.yaml",
} # [END START howto_operator_gcp_update_build_trigger_body] # [START howto_operator_create_build_from_repo_body]
[docs]create_build_from_repo_body: dict[str, Any] = { "source": {"repo_source": {"repo_name": GCP_SOURCE_REPOSITORY_NAME, "branch_name": "master"}}, "steps": [{"name": "ubuntu", "args": ["echo", "Hello world"]}],
} # [END howto_operator_create_build_from_repo_body] with models.DAG( DAG_ID, schedule="@once", start_date=datetime(2021, 1, 1), catchup=False, tags=["example"], ) as dag: # [START howto_operator_create_build_trigger]
[docs] create_build_trigger = CloudBuildCreateBuildTriggerOperator( task_id="create_build_trigger", project_id=PROJECT_ID, trigger=create_build_trigger_body
) # [END howto_operator_create_build_trigger] build_trigger_id = cast(str, XComArg(create_build_trigger, key="id")) # [START howto_operator_run_build_trigger] run_build_trigger = CloudBuildRunBuildTriggerOperator( task_id="run_build_trigger", project_id=PROJECT_ID, trigger_id=build_trigger_id, source=create_build_from_repo_body["source"]["repo_source"], ) # [END howto_operator_run_build_trigger] # [START howto_operator_update_build_trigger] update_build_trigger = CloudBuildUpdateBuildTriggerOperator( task_id="update_build_trigger", project_id=PROJECT_ID, trigger_id=build_trigger_id, trigger=update_build_trigger_body, ) # [END howto_operator_update_build_trigger] # [START howto_operator_get_build_trigger] get_build_trigger = CloudBuildGetBuildTriggerOperator( task_id="get_build_trigger", project_id=PROJECT_ID, trigger_id=build_trigger_id, ) # [END howto_operator_get_build_trigger] # [START howto_operator_delete_build_trigger] delete_build_trigger = CloudBuildDeleteBuildTriggerOperator( task_id="delete_build_trigger", project_id=PROJECT_ID, trigger_id=build_trigger_id, ) # [END howto_operator_delete_build_trigger] # [START howto_operator_list_build_triggers] list_build_triggers = CloudBuildListBuildTriggersOperator( task_id="list_build_triggers", project_id=PROJECT_ID, location="global", page_size=5 ) # [END howto_operator_list_build_triggers] chain( create_build_trigger, run_build_trigger, update_build_trigger, get_build_trigger, delete_build_trigger, list_build_triggers, ) from tests.system.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.system.utils import get_test_run # noqa: E402 # Needed to run the example DAG with pytest (see: tests/system/
[docs]test_run = get_test_run(dag)

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