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from __future__ import annotations
from datetime import datetime
import boto3
from airflow import DAG
from airflow.decorators import task
from airflow.models.baseoperator import chain
from airflow.providers.amazon.aws.operators.sagemaker import (
SageMakerStartPipelineOperator,
SageMakerStopPipelineOperator,
)
from airflow.providers.amazon.aws.sensors.sagemaker import (
SageMakerPipelineSensor,
)
from airflow.utils.trigger_rule import TriggerRule
from tests.system.providers.amazon.aws.utils import ENV_ID_KEY, SystemTestContextBuilder
[docs]DAG_ID = "example_sagemaker_pipeline"
# Externally fetched variables:
[docs]ROLE_ARN_KEY = "ROLE_ARN"
[docs]sys_test_context_task = SystemTestContextBuilder().add_variable(ROLE_ARN_KEY).build()
@task
[docs]def create_pipeline(name: str, role_arn: str):
# Json definition for a dummy pipeline of 30 chained "conditional step" checking that 3 < 6
# Each step takes roughly 1 second to execute, so the pipeline runtimes is ~30 seconds, which should be
# enough to test stopping and awaiting without race conditions.
# Built using sagemaker sdk, and using json.loads(pipeline.definition())
pipeline_json_definition = """{"Version": "2020-12-01", "Metadata": {}, "Parameters": [], "PipelineExperimentConfig": {"ExperimentName": {"Get": "Execution.PipelineName"}, "TrialName": {"Get": "Execution.PipelineExecutionId"}}, "Steps": [{"Name": "DummyCond29", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond28", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond27", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond26", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond25", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond24", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond23", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond22", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond21", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond20", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond19", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond18", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond17", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond16", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond15", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond14", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond13", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond12", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond11", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond10", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond9", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond8", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond7", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond6", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond5", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond4", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond3", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond2", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond1", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond0", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [{"Name": "DummyCond", "Type": "Condition", "Arguments": {"Conditions": [{"Type": "LessThanOrEqualTo", "LeftValue": 3.0, "RightValue": 6.0}], "IfSteps": [], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}], "ElseSteps": []}}]}""" # noqa: E501
sgmk_client = boto3.client("sagemaker")
sgmk_client.create_pipeline(
PipelineName=name, PipelineDefinition=pipeline_json_definition, RoleArn=role_arn
)
@task(trigger_rule=TriggerRule.ALL_DONE)
[docs]def delete_pipeline(name: str):
sgmk_client = boto3.client("sagemaker")
sgmk_client.delete_pipeline(PipelineName=name)
with DAG(
dag_id=DAG_ID,
schedule="@once",
start_date=datetime(2021, 1, 1),
tags=["example"],
catchup=False,
) as dag:
[docs] test_context = sys_test_context_task()
env_id = test_context[ENV_ID_KEY]
pipeline_name = f"{env_id}-pipeline"
create_pipeline = create_pipeline(pipeline_name, test_context[ROLE_ARN_KEY])
# [START howto_operator_sagemaker_start_pipeline]
start_pipeline1 = SageMakerStartPipelineOperator(
task_id="start_pipeline1",
pipeline_name=pipeline_name,
)
# [END howto_operator_sagemaker_start_pipeline]
# [START howto_operator_sagemaker_stop_pipeline]
stop_pipeline1 = SageMakerStopPipelineOperator(
task_id="stop_pipeline1",
pipeline_exec_arn=start_pipeline1.output,
)
# [END howto_operator_sagemaker_stop_pipeline]
start_pipeline2 = SageMakerStartPipelineOperator(
task_id="start_pipeline2",
pipeline_name=pipeline_name,
)
# [START howto_sensor_sagemaker_pipeline]
await_pipeline2 = SageMakerPipelineSensor(
task_id="await_pipeline2",
pipeline_exec_arn=start_pipeline2.output,
)
# [END howto_sensor_sagemaker_pipeline]
await_pipeline2.poke_interval = 10
chain(
# TEST SETUP
test_context,
create_pipeline,
# TEST BODY
start_pipeline1,
start_pipeline2,
stop_pipeline1,
await_pipeline2,
# TEST TEARDOWN
delete_pipeline(pipeline_name),
)
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/README.md#run_via_pytest)
[docs]test_run = get_test_run(dag)
