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  2. Orchestrating AWS Glue ETL Jobs

How do I orchestrate AWS Glue ETL jobs using Pulumi?

In this guide, we will walk through the process of orchestrating AWS Glue ETL jobs using Pulumi. AWS Glue is a fully managed ETL (extract, transform, and load) service that makes it easy to prepare and load data for analytics. We will define and deploy AWS Glue jobs and workflows to automate data integration tasks.

Key Points:

  • AWS Glue Job: A job is the business logic that performs the ETL operations.
  • AWS Glue Workflow: A workflow is a container for managing related jobs and triggers.

Steps:

  1. Define the IAM Role: The role that AWS Glue will assume to perform the job.
  2. Create the Glue Job: Define the script and other properties for the Glue job.
  3. Create the Glue Workflow: Manage the execution of the Glue job using a workflow.
import * as pulumi from "@pulumi/pulumi";
import * as aws from "@pulumi/aws";

// Define IAM Role for Glue
const glueRole = new aws.iam.Role("glueRole", {
    assumeRolePolicy: aws.iam.assumeRolePolicyForPrincipal({ Service: "glue.amazonaws.com" }),
});

// Attach a policy to the role
new aws.iam.RolePolicyAttachment("glueRolePolicyAttachment", {
    role: glueRole.name,
    policyArn: aws.iam.ManagedPolicy.AmazonS3FullAccess, // Adjust policies as needed
});

// Create Glue Job
const glueJob = new aws.glue.Job("exampleGlueJob", {
    roleArn: glueRole.arn,
    command: {
        name: "glueetl",
        scriptLocation: "s3://your-script-location/script.py", // Update with your script location
        pythonVersion: "3",
    },
    defaultArguments: {
        "--TempDir": "s3://your-temp-dir/",
        "--job-bookmark-option": "job-bookmark-enable",
    },
    glueVersion: "2.0",
    maxCapacity: 2,
});

// Create Glue Workflow
const glueWorkflow = new aws.glue.Workflow("exampleGlueWorkflow", {
    name: "example-workflow",
    description: "An example workflow to orchestrate Glue jobs",
});

// Add a trigger to start the Glue job within the workflow
const glueTrigger = new aws.glue.Trigger("exampleGlueTrigger", {
    actions: [{
        jobName: glueJob.name,
    }],
    type: "ON_DEMAND",
    workflowName: glueWorkflow.name,
});

export const workflowName = glueWorkflow.name;
export const glueJobName = glueJob.name;

Summary

In this guide, we defined an AWS Glue job and an AWS Glue workflow using Pulumi. The IAM role was created for the Glue job to assume, and a policy was attached to it. We then defined the Glue job with its script location and other properties. Finally, we created a Glue workflow and added a trigger to start the Glue job within the workflow. This setup helps in automating and managing ETL operations efficiently.

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