Source code for tests.system.providers.google.cloud.compute.example_compute

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"""
Example Airflow DAG that starts, stops and sets the machine type of a Google Compute
Engine instance.

"""

from __future__ import annotations

import os
from datetime import datetime

from airflow.models.baseoperator import chain
from airflow.models.dag import DAG
from airflow.providers.google.cloud.operators.compute import (
    ComputeEngineDeleteInstanceOperator,
    ComputeEngineDeleteInstanceTemplateOperator,
    ComputeEngineInsertInstanceFromTemplateOperator,
    ComputeEngineInsertInstanceOperator,
    ComputeEngineInsertInstanceTemplateOperator,
    ComputeEngineSetMachineTypeOperator,
    ComputeEngineStartInstanceOperator,
    ComputeEngineStopInstanceOperator,
)
from airflow.utils.trigger_rule import TriggerRule

# [START howto_operator_gce_args_common]
[docs]ENV_ID = os.environ.get("SYSTEM_TESTS_ENV_ID")
[docs]PROJECT_ID = os.environ.get("SYSTEM_TESTS_GCP_PROJECT")
[docs]DAG_ID = "cloud_compute"
[docs]LOCATION = "europe-west1-b"
[docs]REGION = "europe-west1"
[docs]GCE_INSTANCE_NAME = "instance-compute-test"
[docs]SHORT_MACHINE_TYPE_NAME = "n1-standard-1"
[docs]TEMPLATE_NAME = "instance-template"
[docs]INSTANCE_TEMPLATE_BODY = { "name": TEMPLATE_NAME, "properties": { "machine_type": SHORT_MACHINE_TYPE_NAME, "disks": [ { "auto_delete": True, "boot": True, "device_name": TEMPLATE_NAME, "initialize_params": { "disk_size_gb": "10", "disk_type": "pd-balanced", "source_image": "projects/debian-cloud/global/images/debian-11-bullseye-v20220621", }, } ], "network_interfaces": [{"network": "global/networks/default"}], }, }
[docs]GCE_INSTANCE_BODY = { "name": GCE_INSTANCE_NAME, "machine_type": f"zones/{LOCATION}/machineTypes/{SHORT_MACHINE_TYPE_NAME}", "disks": [ { "boot": True, "device_name": GCE_INSTANCE_NAME, "initialize_params": { "disk_size_gb": "10", "disk_type": f"zones/{LOCATION}/diskTypes/pd-balanced", "source_image": "projects/debian-cloud/global/images/debian-11-bullseye-v20220621", }, } ], "network_interfaces": [ { "access_configs": [{"name": "External NAT", "network_tier": "PREMIUM"}], "stack_type": "IPV4_ONLY", "subnetwork": f"regions/{REGION}/subnetworks/default", } ], }
[docs]GCE_INSTANCE_FROM_TEMPLATE_BODY = { "name": GCE_INSTANCE_NAME, }
# [END howto_operator_gce_args_common] with DAG( DAG_ID, schedule="@once", start_date=datetime(2021, 1, 1), catchup=False, tags=["example"], ) as dag: # [START howto_operator_gce_insert]
[docs] gce_instance_insert = ComputeEngineInsertInstanceOperator( task_id="gcp_compute_create_instance_task", project_id=PROJECT_ID, zone=LOCATION, body=GCE_INSTANCE_BODY, )
# [END howto_operator_gce_insert] # Duplicate start for idempotence testing # [START howto_operator_gce_insert_no_project_id] gce_instance_insert2 = ComputeEngineInsertInstanceOperator( task_id="gcp_compute_create_instance_task_2", zone=LOCATION, body=GCE_INSTANCE_BODY, ) # [END howto_operator_gce_insert_no_project_id] # [START howto_operator_gce_igm_insert_template] gce_instance_template_insert = ComputeEngineInsertInstanceTemplateOperator( task_id="gcp_compute_create_template_task", project_id=PROJECT_ID, body=INSTANCE_TEMPLATE_BODY, ) # [END howto_operator_gce_igm_insert_template] # Added to check for idempotence # [START howto_operator_gce_igm_insert_template_no_project_id] gce_instance_template_insert2 = ComputeEngineInsertInstanceTemplateOperator( task_id="gcp_compute_create_template_task_2", body=INSTANCE_TEMPLATE_BODY, ) # [END howto_operator_gce_igm_insert_template_no_project_id] # [START howto_operator_gce_insert_from_template] gce_instance_insert_from_template = ComputeEngineInsertInstanceFromTemplateOperator( task_id="gcp_compute_create_instance_from_template_task", project_id=PROJECT_ID, zone=LOCATION, body=GCE_INSTANCE_FROM_TEMPLATE_BODY, source_instance_template=f"global/instanceTemplates/{TEMPLATE_NAME}", ) # [END howto_operator_gce_insert_from_template] # Duplicate start for idempotence testing # [START howto_operator_gce_insert_from_template_no_project_id] gce_instance_insert_from_template2 = ComputeEngineInsertInstanceFromTemplateOperator( task_id="gcp_compute_create_instance_from_template_task_2", zone=LOCATION, body=GCE_INSTANCE_FROM_TEMPLATE_BODY, source_instance_template=f"global/instanceTemplates/{TEMPLATE_NAME}", ) # [END howto_operator_gce_insert_from_template_no_project_id] # [START howto_operator_gce_start] gce_instance_start = ComputeEngineStartInstanceOperator( task_id="gcp_compute_start_task", project_id=PROJECT_ID, zone=LOCATION, resource_id=GCE_INSTANCE_NAME, ) # [END howto_operator_gce_start] # Duplicate start for idempotence testing # [START howto_operator_gce_start_no_project_id] gce_instance_start2 = ComputeEngineStartInstanceOperator( task_id="gcp_compute_start_task_2", zone=LOCATION, resource_id=GCE_INSTANCE_NAME, ) # [END howto_operator_gce_start_no_project_id] # [START howto_operator_gce_stop] gce_instance_stop = ComputeEngineStopInstanceOperator( task_id="gcp_compute_stop_task", project_id=PROJECT_ID, zone=LOCATION, resource_id=GCE_INSTANCE_NAME, ) # [END howto_operator_gce_stop] gce_instance_stop.trigger_rule = TriggerRule.ALL_DONE # Duplicate stop for idempotence testing # [START howto_operator_gce_stop_no_project_id] gce_instance_stop2 = ComputeEngineStopInstanceOperator( task_id="gcp_compute_stop_task_2", zone=LOCATION, resource_id=GCE_INSTANCE_NAME, ) # [END howto_operator_gce_stop_no_project_id] gce_instance_stop2.trigger_rule = TriggerRule.ALL_DONE # [START howto_operator_gce_set_machine_type] gce_set_machine_type = ComputeEngineSetMachineTypeOperator( task_id="gcp_compute_set_machine_type", project_id=PROJECT_ID, zone=LOCATION, resource_id=GCE_INSTANCE_NAME, body={"machineType": f"zones/{LOCATION}/machineTypes/{SHORT_MACHINE_TYPE_NAME}"}, ) # [END howto_operator_gce_set_machine_type] # Duplicate set machine type for idempotence testing # [START howto_operator_gce_set_machine_type_no_project_id] gce_set_machine_type2 = ComputeEngineSetMachineTypeOperator( zone=LOCATION, resource_id=GCE_INSTANCE_NAME, body={"machineType": f"zones/{LOCATION}/machineTypes/{SHORT_MACHINE_TYPE_NAME}"}, task_id="gcp_compute_set_machine_type_2", ) # [END howto_operator_gce_set_machine_type_no_project_id] # [START howto_operator_gce_delete_no_project_id] gce_instance_delete = ComputeEngineDeleteInstanceOperator( task_id="gcp_compute_delete_instance_task", zone=LOCATION, resource_id=GCE_INSTANCE_NAME, ) # [END howto_operator_gce_delete_no_project_id] gce_instance_delete.trigger_rule = TriggerRule.ALL_DONE # [START howto_operator_gce_delete_no_project_id] gce_instance_delete2 = ComputeEngineDeleteInstanceOperator( task_id="gcp_compute_delete_instance_task_2", zone=LOCATION, resource_id=GCE_INSTANCE_NAME, ) # [END howto_operator_gce_delete_no_project_id] gce_instance_delete.trigger_rule = TriggerRule.ALL_DONE # [START howto_operator_gce_delete_new_template_no_project_id] gce_instance_template_delete = ComputeEngineDeleteInstanceTemplateOperator( task_id="gcp_compute_delete_template_task", resource_id=TEMPLATE_NAME, ) # [END howto_operator_gce_delete_new_template_no_project_id] gce_instance_template_delete.trigger_rule = TriggerRule.ALL_DONE chain( gce_instance_insert, gce_instance_insert2, gce_instance_delete, gce_instance_template_insert, gce_instance_template_insert2, gce_instance_insert_from_template, gce_instance_insert_from_template2, gce_instance_start, gce_instance_start2, gce_instance_stop, gce_instance_stop2, gce_set_machine_type, gce_set_machine_type2, gce_instance_delete2, gce_instance_template_delete, ) # ### Everything below this line is not part of example ### # ### Just for system tests purpose ### 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)

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