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

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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.hooks.compute_ssh import ComputeEngineSSHHook
from airflow.providers.google.cloud.operators.compute import (
    ComputeEngineDeleteInstanceOperator,
    ComputeEngineInsertInstanceOperator,
)
from airflow.providers.ssh.operators.ssh import SSHOperator
from airflow.utils.trigger_rule import TriggerRule
from tests.system.providers.google import DEFAULT_GCP_SYSTEM_TEST_PROJECT_ID

# [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") or DEFAULT_GCP_SYSTEM_TEST_PROJECT_ID
[docs]DAG_ID = "cloud_compute_ssh_parallel"
[docs]LOCATION = "europe-west1-b"
[docs]REGION = "europe-west1"
[docs]GCE_INSTANCE_NAME = "inst-ssh-test-parallel"
[docs]SHORT_MACHINE_TYPE_NAME = "n1-standard-1"
[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", } ], }
# [END howto_operator_gce_args_common] with DAG( DAG_ID, schedule="@once", start_date=datetime(2021, 1, 1), catchup=False, tags=["example", "compute-ssh-parallel"], ) 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] # [START howto_execute_command_on_remote_1] metadata_without_iap_tunnel = SSHOperator( task_id="metadata_without_iap_tunnel", ssh_hook=ComputeEngineSSHHook( user="username1", instance_name=GCE_INSTANCE_NAME, zone=LOCATION, project_id=PROJECT_ID, use_oslogin=False, use_iap_tunnel=False, max_retries=5, cmd_timeout=1, ), command="echo metadata_without_iap_tunnel", ) # [END howto_execute_command_on_remote_1] # [START howto_execute_command_on_remote_2] metadata_with_iap_tunnel = SSHOperator( task_id="metadata_with_iap_tunnel", ssh_hook=ComputeEngineSSHHook( user="username2", instance_name=GCE_INSTANCE_NAME, zone=LOCATION, use_oslogin=False, use_iap_tunnel=True, max_retries=5, cmd_timeout=1, ), command="echo metadata_with_iap_tunnel", ) # [END howto_execute_command_on_remote_2] # [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 chain( gce_instance_insert, [metadata_without_iap_tunnel, metadata_with_iap_tunnel], gce_instance_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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