Source code for airflow.providers.amazon.aws.example_dags.example_emr_eks_job
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"""
This is an example dag for an Amazon EMR on EKS Spark job.
"""
import os
from datetime import timedelta
from airflow import DAG
from airflow.providers.amazon.aws.operators.emr_containers import EMRContainerOperator
from airflow.utils.dates import days_ago
# [START howto_operator_emr_eks_env_variables]
VIRTUAL_CLUSTER_ID = os.getenv("VIRTUAL_CLUSTER_ID", "test-cluster")
JOB_ROLE_ARN = os.getenv("JOB_ROLE_ARN", "arn:aws:iam::012345678912:role/emr_eks_default_role")
# [END howto_operator_emr_eks_env_variables]
# [START howto_operator_emr_eks_config]
JOB_DRIVER_ARG = {
"sparkSubmitJobDriver": {
"entryPoint": "local:///usr/lib/spark/examples/src/main/python/pi.py",
"sparkSubmitParameters": "--conf spark.executors.instances=2 --conf spark.executors.memory=2G --conf spark.executor.cores=2 --conf spark.driver.cores=1", # noqa: E501
}
}
CONFIGURATION_OVERRIDES_ARG = {
"applicationConfiguration": [
{
"classification": "spark-defaults",
"properties": {
"spark.hadoop.hive.metastore.client.factory.class": "com.amazonaws.glue.catalog.metastore.AWSGlueDataCatalogHiveClientFactory", # noqa: E501
},
}
],
"monitoringConfiguration": {
"cloudWatchMonitoringConfiguration": {
"logGroupName": "/aws/emr-eks-spark",
"logStreamNamePrefix": "airflow",
}
},
}
# [END howto_operator_emr_eks_config]
with DAG(
dag_id='emr_eks_pi_job',
dagrun_timeout=timedelta(hours=2),
start_date=days_ago(1),
schedule_interval="@once",
tags=["emr_containers", "example"],
) as dag:
# An example of how to get the cluster id and arn from an Airflow connection
# VIRTUAL_CLUSTER_ID = '{{ conn.emr_eks.extra_dejson["virtual_cluster_id"] }}'
# JOB_ROLE_ARN = '{{ conn.emr_eks.extra_dejson["job_role_arn"] }}'
# [START howto_operator_emr_eks_jobrun]
job_starter = EMRContainerOperator(
task_id="start_job",
virtual_cluster_id=VIRTUAL_CLUSTER_ID,
execution_role_arn=JOB_ROLE_ARN,
release_label="emr-6.3.0-latest",
job_driver=JOB_DRIVER_ARG,
configuration_overrides=CONFIGURATION_OVERRIDES_ARG,
name="pi.py",
)
# [END howto_operator_emr_eks_jobrun]