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import os
from datetime import datetime
from airflow import models
from airflow.providers.google.cloud.operators.life_sciences import LifeSciencesRunPipelineOperator
[docs]ENV_ID = os.environ.get("SYSTEM_TESTS_ENV_ID")
[docs]DAG_ID = "example_gcp_life_sciences"
[docs]PROJECT_ID = os.environ.get("GCP_PROJECT_ID", "example-project-id")
[docs]BUCKET = os.environ.get("GCP_GCS_LIFE_SCIENCES_BUCKET", "INVALID BUCKET NAME")
[docs]FILENAME = os.environ.get("GCP_GCS_LIFE_SCIENCES_FILENAME", 'input.in')
[docs]LOCATION = os.environ.get("GCP_LIFE_SCIENCES_LOCATION", 'us-central1')
# [START howto_configure_simple_action_pipeline]
[docs]SIMPLE_ACTION_PIPELINE = {
"pipeline": {
"actions": [
{"imageUri": "bash", "commands": ["-c", "echo Hello, world"]},
],
"resources": {
"regions": [f"{LOCATION}"],
"virtualMachine": {
"machineType": "n1-standard-1",
},
},
},
}
# [END howto_configure_simple_action_pipeline]
# [START howto_configure_multiple_action_pipeline]
[docs]MULTI_ACTION_PIPELINE = {
"pipeline": {
"actions": [
{
"imageUri": "google/cloud-sdk",
"commands": ["gsutil", "cp", f"gs://{BUCKET}/{FILENAME}", "/tmp"],
},
{"imageUri": "bash", "commands": ["-c", "echo Hello, world"]},
{
"imageUri": "google/cloud-sdk",
"commands": [
"gsutil",
"cp",
f"gs://{BUCKET}/{FILENAME}",
f"gs://{BUCKET}/output.in",
],
},
],
"resources": {
"regions": [f"{LOCATION}"],
"virtualMachine": {
"machineType": "n1-standard-1",
},
},
}
}
# [END howto_configure_multiple_action_pipeline]
with models.DAG(
DAG_ID,
schedule_interval='@once',
start_date=datetime(2021, 1, 1),
catchup=False,
tags=['example'],
) as dag:
# [START howto_run_pipeline]
[docs] simple_life_science_action_pipeline = LifeSciencesRunPipelineOperator(
task_id='simple-action-pipeline',
body=SIMPLE_ACTION_PIPELINE,
project_id=PROJECT_ID,
location=LOCATION,
)
# [END howto_run_pipeline]
multiple_life_science_action_pipeline = LifeSciencesRunPipelineOperator(
task_id='multi-action-pipeline', body=MULTI_ACTION_PIPELINE, project_id=PROJECT_ID, location=LOCATION
)
simple_life_science_action_pipeline >> multiple_life_science_action_pipeline
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)
