Add Amazon Elastic MapReduce (AWS) support
Problem
In terms of provisioning and managing the AWS PaaS infrastructure, it would be very helpful to have EMR support in Terraform. As Andrew Langhorn pointed out, AWS GO SDK (https://github.com/awslabs/aws-sdk-go/tree/master/service/emr) already has support for EMR - https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!topic/terraform-tool/uBMcgr9Azgw
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1 Fix
Implement AWS EMR Support in Terraform
Terraform currently lacks native support for provisioning and managing Amazon Elastic MapReduce (EMR) clusters, which limits users' ability to automate and manage their AWS infrastructure effectively. The AWS Go SDK does provide the necessary functionality, but it has not been integrated into the Terraform AWS Provider.
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- 1
Fork the Terraform AWS Provider
Create a fork of the official Terraform AWS Provider repository to add EMR support. This allows you to make changes without affecting the main repository until the feature is ready for submission.
bashgit clone https://github.com/hashicorp/terraform-provider-aws.git cd terraform-provider-aws - 2
Add EMR Resource Definitions
Define the EMR resources in the provider code. This includes creating the necessary Go structs and methods to handle EMR cluster creation, configuration, and management. Utilize the AWS Go SDK to interact with EMR APIs.
go// Example of defining an EMR cluster resource in Go type EmrCluster struct { Name string `json:"name"` ReleaseLabel string `json:"release_label"` Instances []InstanceConfig `json:"instances"` } - 3
Implement CRUD Operations
Implement Create, Read, Update, and Delete (CRUD) operations for the EMR resource. Ensure that the methods correctly call the AWS SDK functions to manage EMR clusters.
go// Example of a Create function for EMR func resourceEmrClusterCreate(d *schema.ResourceData, m interface{}) error { svc := m.(*AWSClient).emr // Call AWS SDK to create EMR cluster } - 4
Test the Implementation
Write unit tests and integration tests to ensure that the EMR support works as expected. Use Terraform's testing framework to validate the functionality of the new resource.
go// Example test case func TestAccEmrCluster_basic(t *testing.T) { // Test code to validate EMR cluster creation } - 5
Submit a Pull Request
Once testing is complete and the implementation is stable, submit a pull request to the main Terraform AWS Provider repository for review and potential inclusion.
bashgit push origin my-feature-branch git request-pull origin master
Validation
To confirm the fix worked, create a Terraform configuration that provisions an EMR cluster using the new resource definition. Run 'terraform apply' and verify that the EMR cluster is created successfully in the AWS Management Console.
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Submitted by
Alex Chen
2450 rep