Source code for tests.system.providers.google.cloud.cloud_memorystore.example_cloud_memorystore_memcached

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"""
Example Airflow DAG for Google Cloud Memorystore Memcached service.
"""
from __future__ import annotations

import os
from datetime import datetime

from google.protobuf.field_mask_pb2 import FieldMask

from airflow import models
from airflow.providers.google.cloud.operators.cloud_memorystore import (
    CloudMemorystoreMemcachedApplyParametersOperator,
    CloudMemorystoreMemcachedCreateInstanceOperator,
    CloudMemorystoreMemcachedDeleteInstanceOperator,
    CloudMemorystoreMemcachedGetInstanceOperator,
    CloudMemorystoreMemcachedListInstancesOperator,
    CloudMemorystoreMemcachedUpdateInstanceOperator,
    CloudMemorystoreMemcachedUpdateParametersOperator,
)
from airflow.utils.trigger_rule import TriggerRule

[docs]ENV_ID = os.environ.get("SYSTEM_TESTS_ENV_ID")
[docs]PROJECT_ID = os.environ.get("SYSTEM_TESTS_GCP_PROJECT", "google_project_id")
[docs]DAG_ID = "cloud_memorystore_memcached"
[docs]MEMORYSTORE_MEMCACHED_INSTANCE_NAME = f"memcached-{ENV_ID}-1"
[docs]LOCATION = "europe-north1"
# [START howto_operator_memcached_instance]
[docs]MEMCACHED_INSTANCE = { "name": "", "node_count": 1, "node_config": {"cpu_count": 1, "memory_size_mb": 1024}, "zones": [LOCATION + "-a"],
} # [END howto_operator_memcached_instance] with models.DAG( DAG_ID, schedule="@once", # Override to match your needs start_date=datetime(2021, 1, 1), catchup=False, tags=["example"], ) as dag: # [START howto_operator_create_instance_memcached]
[docs] create_memcached_instance = CloudMemorystoreMemcachedCreateInstanceOperator( task_id="create-instance", location=LOCATION, instance_id=MEMORYSTORE_MEMCACHED_INSTANCE_NAME, instance=MEMCACHED_INSTANCE, project_id=PROJECT_ID,
) # [END howto_operator_create_instance_memcached] # [START howto_operator_delete_instance_memcached] delete_memcached_instance = CloudMemorystoreMemcachedDeleteInstanceOperator( task_id="delete-instance", location=LOCATION, instance=MEMORYSTORE_MEMCACHED_INSTANCE_NAME, project_id=PROJECT_ID, ) # [END howto_operator_delete_instance_memcached] delete_memcached_instance.trigger_rule = TriggerRule.ALL_DONE # [START howto_operator_get_instance_memcached] get_memcached_instance = CloudMemorystoreMemcachedGetInstanceOperator( task_id="get-instance", location=LOCATION, instance=MEMORYSTORE_MEMCACHED_INSTANCE_NAME, project_id=PROJECT_ID, ) # [END howto_operator_get_instance_memcached] # [START howto_operator_list_instances_memcached] list_memcached_instances = CloudMemorystoreMemcachedListInstancesOperator( task_id="list-instances", location="-", project_id=PROJECT_ID ) # [END howto_operator_list_instances_memcached] # [START howto_operator_update_instance_memcached] update_memcached_instance = CloudMemorystoreMemcachedUpdateInstanceOperator( task_id="update-instance", location=LOCATION, instance_id=MEMORYSTORE_MEMCACHED_INSTANCE_NAME, project_id=PROJECT_ID, update_mask=FieldMask(paths=["node_count"]), instance={"node_count": 2}, # 2 ) # [END howto_operator_update_instance_memcached] # [START howto_operator_update_and_apply_parameters_memcached] update_memcached_parameters = CloudMemorystoreMemcachedUpdateParametersOperator( task_id="update-parameters", location=LOCATION, instance_id=MEMORYSTORE_MEMCACHED_INSTANCE_NAME, project_id=PROJECT_ID, update_mask={"paths": ["params"]}, parameters={"params": {"protocol": "ascii", "hash_algorithm": "jenkins"}}, ) apply_memcached_parameters = CloudMemorystoreMemcachedApplyParametersOperator( task_id="apply-parameters", location=LOCATION, instance_id=MEMORYSTORE_MEMCACHED_INSTANCE_NAME, project_id=PROJECT_ID, node_ids=["node-a-1"], apply_all=False, ) # [END howto_operator_update_and_apply_parameters_memcached] ( create_memcached_instance >> get_memcached_instance >> list_memcached_instances >> update_memcached_instance >> update_memcached_parameters >> apply_memcached_parameters >> delete_memcached_instance ) # ### 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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