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import os
from datetime import datetime
from airflow import models
from airflow.models.baseoperator import chain
from airflow.providers.google.cloud.operators.cloud_composer import (
CloudComposerCreateEnvironmentOperator,
CloudComposerDeleteEnvironmentOperator,
CloudComposerGetEnvironmentOperator,
CloudComposerListEnvironmentsOperator,
CloudComposerListImageVersionsOperator,
CloudComposerUpdateEnvironmentOperator,
)
[docs]PROJECT_ID = os.environ.get("GCP_PROJECT_ID", "<PROJECT_ID>")
[docs]REGION = os.environ.get("GCP_REGION", "<REGION>")
# [START howto_operator_composer_simple_environment]
[docs]ENVIRONMENT_ID = os.environ.get("ENVIRONMENT_ID", "ENVIRONMENT_ID>")
[docs]ENVIRONMENT = {
"config": {
"node_count": 3,
"software_config": {"image_version": "composer-1.17.7-airflow-2.1.4"},
}
}
# [END howto_operator_composer_simple_environment]
# [START howto_operator_composer_update_environment]
[docs]UPDATED_ENVIRONMENT = {
"labels": {
"label1": "testing",
}
}
[docs]UPDATE_MASK = {"paths": ["labels.label1"]}
# [END howto_operator_composer_update_environment]
with models.DAG(
"composer_dag1",
schedule_interval="@once", # Override to match your needs
start_date=datetime(2021, 1, 1),
catchup=False,
tags=['example'],
) as dag:
# [START howto_operator_composer_image_list]
[docs] image_versions = CloudComposerListImageVersionsOperator(
task_id="image_versions",
project_id=PROJECT_ID,
region=REGION,
)
# [END howto_operator_composer_image_list]
# [START howto_operator_create_composer_environment]
create_env = CloudComposerCreateEnvironmentOperator(
task_id="create_env",
project_id=PROJECT_ID,
region=REGION,
environment_id=ENVIRONMENT_ID,
environment=ENVIRONMENT,
)
# [END howto_operator_create_composer_environment]
# [START howto_operator_list_composer_environments]
list_envs = CloudComposerListEnvironmentsOperator(
task_id="list_envs", project_id=PROJECT_ID, region=REGION
)
# [END howto_operator_list_composer_environments]
# [START howto_operator_get_composer_environment]
get_env = CloudComposerGetEnvironmentOperator(
task_id="get_env",
project_id=PROJECT_ID,
region=REGION,
environment_id=ENVIRONMENT_ID,
)
# [END howto_operator_get_composer_environment]
# [START howto_operator_update_composer_environment]
update_env = CloudComposerUpdateEnvironmentOperator(
task_id="update_env",
project_id=PROJECT_ID,
region=REGION,
environment_id=ENVIRONMENT_ID,
update_mask=UPDATE_MASK,
environment=UPDATED_ENVIRONMENT,
)
# [END howto_operator_update_composer_environment]
# [START howto_operator_delete_composer_environment]
delete_env = CloudComposerDeleteEnvironmentOperator(
task_id="delete_env",
project_id=PROJECT_ID,
region=REGION,
environment_id=ENVIRONMENT_ID,
)
# [END howto_operator_delete_composer_environment]
chain(image_versions, create_env, list_envs, get_env, update_env, delete_env)
with models.DAG(
"composer_dag_deferrable1",
schedule_interval="@once", # Override to match your needs
start_date=datetime(2021, 1, 1),
catchup=False,
tags=['example'],
) as defer_dag:
# [START howto_operator_create_composer_environment_deferrable_mode]
[docs] defer_create_env = CloudComposerCreateEnvironmentOperator(
task_id="defer_create_env",
project_id=PROJECT_ID,
region=REGION,
environment_id=ENVIRONMENT_ID,
environment=ENVIRONMENT,
deferrable=True,
)
# [END howto_operator_create_composer_environment_deferrable_mode]
# [START howto_operator_update_composer_environment_deferrable_mode]
defer_update_env = CloudComposerUpdateEnvironmentOperator(
task_id="defer_update_env",
project_id=PROJECT_ID,
region=REGION,
environment_id=ENVIRONMENT_ID,
update_mask=UPDATE_MASK,
environment=UPDATED_ENVIRONMENT,
deferrable=True,
)
# [END howto_operator_update_composer_environment_deferrable_mode]
# [START howto_operator_delete_composer_environment_deferrable_mode]
defer_delete_env = CloudComposerDeleteEnvironmentOperator(
task_id="defer_delete_env",
project_id=PROJECT_ID,
region=REGION,
environment_id=ENVIRONMENT_ID,
deferrable=True,
)
# [END howto_operator_delete_composer_environment_deferrable_mode]
chain(
defer_create_env,
defer_update_env,
defer_delete_env,
)
