potiuk commented on a change in pull request #4170: [AIRFLOW-3275] Implement Google Cloud SQL Query operator URL: https://github.com/apache/incubator-airflow/pull/4170#discussion_r232592644
########## File path: airflow/contrib/example_dags/example_gcp_sql_query.py ########## @@ -0,0 +1,257 @@ +# -*- coding: utf-8 -*- +# +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. + +""" +Example Airflow DAG that performs query in a Cloud SQL instance. + +This DAG relies on the following OS environment variables + +* PROJECT_ID - Google Cloud Platform project for the Cloud SQL instance +* LOCATION - Google Cloud location where the database is created +* +* POSTGRES_INSTANCE_NAME - Name of the postgres Cloud SQL instance +* POSTGRES_USER - Name of the postgres database user +* POSTGRES_PASSWORD - Password of the postgres database user +* POSTGRES_PROXY_PORT - Local port number for proxy connections for postgres +* POSTGRES_PUBLIC_IP - Public IP of the Postgres database +* POSTGRES_PUBLIC_PORT - Port of the postgres database +* +* MYSQL_INSTANCE_NAME - Name of the postgres Cloud SQL instance +* MYSQL_USER - Name of the mysql database user +* MYSQL_PASSWORD - Password of the mysql database user +* MYSQL_PROXY_PORT - Local port number for proxy connections for mysql +* MYSQL_PUBLIC_IP - Public IP of the mysql database +* MYSQL_PUBLIC_PORT - Port of the mysql database +""" + +import os +import subprocess + +from six.moves.urllib.parse import quote_plus + +import airflow +from airflow import models +from airflow.contrib.operators.gcp_sql_operator import CloudSqlQueryOperator + +# [START howto_operator_cloudsql_query_arguments] + +PROJECT_ID = os.environ.get('PROJECT_ID', 'example-project') +LOCATION = os.environ.get('REGION', 'europe-west-1') + +POSTGRES_INSTANCE_NAME = os.environ.get('POSTGRES_INSTANCE_NAME', 'testpostgres') +POSTGRES_DATABASE_NAME = os.environ.get('POSTGRES_DATABASE_NAME', 'postgresdb') +POSTGRES_USER = os.environ.get('POSTGRES_USER', 'postgres_user') +POSTGRES_PASSWORD = os.environ.get('POSTGRES_PASSWORD', 'password') +POSTGRES_PUBLIC_IP = os.environ.get('POSTGRES_PUBLIC_IP', '0.0.0.0') +POSTGRES_PUBLIC_PORT = os.environ.get('POSTGRES_PUBLIC_PORT', 5432) +POSTGRES_CLIENT_CERT_FILE = os.environ.get('POSTGRES_CLIENT_CERT_FILE', + "/tmp/client-cert.pem") +POSTGRES_CLIENT_KEY_FILE = os.environ.get('POSTGRES_CLIENT_KEY_FILE', + "/tmp/client-key.pem") +POSTGRES_SERVER_CA_FILE = os.environ.get('POSTGRES_SERVER_CA_FILE', + "/tmp/server-ca.pem") + +MYSQL_INSTANCE_NAME = os.environ.get('MYSQL_INSTANCE_NAME', 'testmysql') +MYSQL_DATABASE_NAME = os.environ.get('MYSQL_DATABASE_NAME', 'mysqldb') +MYSQL_USER = os.environ.get('MYSQL_USER', 'mysql_user') +MYSQL_PASSWORD = os.environ.get('MYSQL_PASSWORD', 'password') +MYSQL_PUBLIC_IP = os.environ.get('MYSQL_PUBLIC_IP', '0.0.0.0') +MYSQL_PUBLIC_PORT = os.environ.get('MYSQL_PUBLIC_PORT', 3306) +MYSQL_CLIENT_CERT_FILE = os.environ.get('MYSQL_CLIENT_CERT_FILE', + "/tmp/client-cert.pem") +MYSQL_CLIENT_KEY_FILE = os.environ.get('MYSQL_CLIENT_KEY_FILE', + "/tmp/client-key.pem") +MYSQL_SERVER_CA_FILE = os.environ.get('MYSQL_SERVER_CA_FILE', + "/tmp/server-ca.pem") + +SQL = [ + 'CREATE TABLE IF NOT EXISTS TABLE_TEST (I INTEGER)', + 'CREATE TABLE IF NOT EXISTS TABLE_TEST (I INTEGER)', # shows warnings logged + 'INSERT INTO TABLE_TEST VALUES (0)', + 'CREATE TABLE IF NOT EXISTS TABLE_TEST2 (I INTEGER)', + 'DROP TABLE TABLE_TEST', + 'DROP TABLE TABLE_TEST2', +] + +default_args = { + 'start_date': airflow.utils.dates.days_ago(1) +} + +# [END howto_operator_cloudsql_query_arguments] + + +# [START howto_operator_cloudsql_query_connections] + +postgres_kwargs = dict( + user=quote_plus(POSTGRES_USER), + password=quote_plus(POSTGRES_PASSWORD), + public_port=POSTGRES_PUBLIC_PORT, + public_ip=quote_plus(POSTGRES_PUBLIC_IP), + project_id=quote_plus(PROJECT_ID), + location=quote_plus(LOCATION), + instance=quote_plus(POSTGRES_INSTANCE_NAME), + database=quote_plus(POSTGRES_DATABASE_NAME), + client_cert_file=quote_plus(POSTGRES_CLIENT_CERT_FILE), + client_key_file=quote_plus(POSTGRES_CLIENT_KEY_FILE), + server_ca_file=quote_plus(POSTGRES_SERVER_CA_FILE) +) + +# Postgres: connect via proxy over TCP +os.environ['AIRFLOW_CONN_PROXY_POSTGRES_TCP'] = \ Review comment: Sure! ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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