202 lines
7.1 KiB
Python
202 lines
7.1 KiB
Python
# Copyright 2022 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# --------------------------------------------------------------------------------
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# Load The Dependencies
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# --------------------------------------------------------------------------------
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import csv
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import datetime
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import io
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import logging
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import os
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from airflow import models
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from airflow.contrib.operators.dataflow_operator import DataflowTemplateOperator
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from airflow.operators import dummy
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from airflow.providers.google.cloud.operators.bigquery import BigQueryInsertJobOperator
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# --------------------------------------------------------------------------------
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# Set variables
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# ------------------------------------------------------------
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DTL_L0_PRJ = os.environ.get("DTL_L0_PRJ")
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DTL_L0_BQ_DATASET = os.environ.get("DTL_L0_BQ_DATASET")
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DTL_L0_GCS = os.environ.get("DTL_L0_GCS")
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DTL_L1_PRJ = os.environ.get("DTL_L1_PRJ")
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DTL_L1_BQ_DATASET = os.environ.get("DTL_L1_BQ_DATASET")
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DTL_L1_GCS = os.environ.get("DTL_L1_GCS")
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DTL_L2_PRJ = os.environ.get("DTL_L2_PRJ")
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DTL_L2_BQ_DATASET = os.environ.get("DTL_L2_BQ_DATASET")
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DTL_L2_GCS = os.environ.get("DTL_L2_GCS")
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DTL_PLG_PRJ = os.environ.get("DTL_PLG_PRJ")
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DTL_PLG_BQ_DATASET = os.environ.get("DTL_PLG_BQ_DATASET")
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DTL_PLG_GCS = os.environ.get("DTL_PLG_GCS")
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GCP_REGION = os.environ.get("GCP_REGION")
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LND_PRJ = os.environ.get("LND_PRJ")
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LND_BQ = os.environ.get("LND_BQ")
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LND_GCS = os.environ.get("LND_GCS")
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LND_PS = os.environ.get("LND_PS")
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LOD_PRJ = os.environ.get("LOD_PRJ")
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LOD_GCS_STAGING = os.environ.get("LOD_GCS_STAGING")
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LOD_NET_VPC = os.environ.get("LOD_NET_VPC")
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LOD_NET_SUBNET = os.environ.get("LOD_NET_SUBNET")
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LOD_SA_DF = os.environ.get("LOD_SA_DF")
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ORC_PRJ = os.environ.get("ORC_PRJ")
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ORC_GCS = os.environ.get("ORC_GCS")
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TRF_PRJ = os.environ.get("TRF_PRJ")
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TRF_GCS_STAGING = os.environ.get("TRF_GCS_STAGING")
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TRF_NET_VPC = os.environ.get("TRF_NET_VPC")
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TRF_NET_SUBNET = os.environ.get("TRF_NET_SUBNET")
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TRF_SA_DF = os.environ.get("TRF_SA_DF")
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TRF_SA_BQ = os.environ.get("TRF_SA_BQ")
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DF_ZONE = os.environ.get("GCP_REGION") + "-b"
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DF_REGION = BQ_REGION = os.environ.get("GCP_REGION")
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# --------------------------------------------------------------------------------
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# Set default arguments
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# --------------------------------------------------------------------------------
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# If you are running Airflow in more than one time zone
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# see https://airflow.apache.org/docs/apache-airflow/stable/timezone.html
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# for best practices
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yesterday = datetime.datetime.now() - datetime.timedelta(days=1)
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default_args = {
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'owner': 'airflow',
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'start_date': yesterday,
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'depends_on_past': False,
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'email': [''],
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'email_on_failure': False,
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'email_on_retry': False,
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'retries': 1,
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'retry_delay': datetime.timedelta(minutes=5),
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'dataflow_default_options': {
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'project': LOD_PRJ,
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'location': DF_REGION,
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'zone': DF_ZONE,
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'stagingLocation': LOD_GCS_STAGING,
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'tempLocation': LOD_GCS_STAGING + "/tmp",
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'serviceAccountEmail': LOD_SA_DF,
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'subnetwork': LOD_NET_SUBNET,
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'ipConfiguration': "WORKER_IP_PRIVATE"
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},
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}
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# --------------------------------------------------------------------------------
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# Main DAG
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# --------------------------------------------------------------------------------
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with models.DAG(
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'data_pipeline_dag',
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default_args=default_args,
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schedule_interval=None) as dag:
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start = dummy.DummyOperator(
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task_id='start',
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trigger_rule='all_success'
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)
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end = dummy.DummyOperator(
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task_id='end',
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trigger_rule='all_success'
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)
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customers_import = DataflowTemplateOperator(
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task_id="dataflow_customer_import",
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template="gs://dataflow-templates/latest/GCS_Text_to_BigQuery",
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parameters={
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"javascriptTextTransformFunctionName": "transform",
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"JSONPath": ORC_GCS + "/customers_schema.json",
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"javascriptTextTransformGcsPath": ORC_GCS + "/customers_udf.js",
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"inputFilePattern": LND_GCS + "/customers.csv",
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"outputTable": DTL_L0_PRJ + ":"+DTL_L0_BQ_DATASET+".customers",
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"bigQueryLoadingTemporaryDirectory": LOD_GCS_STAGING + "/tmp/bq/",
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},
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)
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purchases_import = DataflowTemplateOperator(
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task_id="dataflow_purchases_import",
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template="gs://dataflow-templates/latest/GCS_Text_to_BigQuery",
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parameters={
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"javascriptTextTransformFunctionName": "transform",
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"JSONPath": ORC_GCS + "/purchases_schema.json",
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"javascriptTextTransformGcsPath": ORC_GCS + "/purchases_udf.js",
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"inputFilePattern": LND_GCS + "/purchases.csv",
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"outputTable": DTL_L0_PRJ + ":"+DTL_L0_BQ_DATASET+".purchases",
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"bigQueryLoadingTemporaryDirectory": LOD_GCS_STAGING + "/tmp/bq/",
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},
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)
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join_customer_purchase = BigQueryInsertJobOperator(
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task_id='bq_join_customer_purchase',
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gcp_conn_id='bigquery_default',
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project_id=TRF_PRJ,
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location=BQ_REGION,
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configuration={
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'jobType':'QUERY',
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'query':{
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'query':"""SELECT
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c.id as customer_id,
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p.id as purchase_id,
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c.name as name,
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c.surname as surname,
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p.item as item,
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p.price as price,
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p.timestamp as timestamp
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FROM `{dtl_0_prj}.{dtl_0_dataset}.customers` c
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JOIN `{dtl_0_prj}.{dtl_0_dataset}.purchases` p ON c.id = p.customer_id
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""".format(dtl_0_prj=DTL_L0_PRJ, dtl_0_dataset=DTL_L0_BQ_DATASET, ),
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'destinationTable':{
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'projectId': DTL_L1_PRJ,
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'datasetId': DTL_L1_BQ_DATASET,
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'tableId': 'customer_purchase'
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},
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'writeDisposition':'WRITE_TRUNCATE',
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"useLegacySql": False
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}
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},
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impersonation_chain=[TRF_SA_BQ]
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)
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l2_customer_purchase = BigQueryInsertJobOperator(
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task_id='bq_l2_customer_purchase',
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gcp_conn_id='bigquery_default',
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project_id=TRF_PRJ,
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location=BQ_REGION,
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configuration={
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'jobType':'QUERY',
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'query':{
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'query':"""SELECT
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customer_id,
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purchase_id,
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name,
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surname,
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item,
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price,
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timestamp
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FROM `{dtl_1_prj}.{dtl_1_dataset}.customer_purchase`
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""".format(dtl_1_prj=DTL_L1_PRJ, dtl_1_dataset=DTL_L1_BQ_DATASET, ),
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'destinationTable':{
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'projectId': DTL_L2_PRJ,
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'datasetId': DTL_L2_BQ_DATASET,
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'tableId': 'customer_purchase'
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},
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'writeDisposition':'WRITE_TRUNCATE',
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"useLegacySql": False
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}
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},
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impersonation_chain=[TRF_SA_BQ]
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)
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start >> [customers_import, purchases_import] >> join_customer_purchase >> l2_customer_purchase >> end
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