jbesw
commented
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Description
As a best practice, AWS customers should deploy resources that don’t require direct internet access, such as EC2 instances, databases, queues, caching, or other infrastructure, into a VPC private subnet. Those workloads can take advantage of VPC endpoints to call AWS services privately without having to traverse the public internet. Some workloads require occasional updates from external sources. You can use a NAT gateway so instances in a private subnet can connect to services outside your VPC but external services cannot initiate a connection with those instances. Since these updates often occur during a scheduled maintenance window, NAT Gateways aren't necessarily required to be in place all the time, and can be created and deleted only when needed.
This project contains source code and supporting files for a serverless application that allocates an Elastic IP address, creates a NAT Gateway, and adds a route to the NAT Gateway in a VPC route table. The application also deletes the NAT Gateway and releases the Elastic IP address. The process to create and delete a NAT Gateway is orchestrated by an AWS Step Functions State Machine, triggered by an EventBridge Scheduler. The schedule can be defined by parameters during the deployment process.
language
English
runtime
NodeJS
Level
300
Type
Examples
Use case
Backend
Primary image
https://raw.githubusercontent.com/awsjosh/serverless-patterns/awsjosh-feature-create-and-delete-ngw/stepfunctions-create-delete-ngw/docs/CreateNGW.png
IaC framework
AWS SAM
AWS Serverless services used
Description headline
Automate the Creation and Deletion of NAT Gateways with EventBridge Scheduler, Step Functions, Lambda, and SNS
Repo URL
https://github.com/awsjosh/serverless-patterns/tree/awsjosh-feature-create-and-delete-ngw/stepfunctions-create-delete-ngw
Additional resources
https://docs.aws.amazon.com/vpc/latest/userguide/vpc-nat-gateway.html https://docs.aws.amazon.com/scheduler/latest/UserGuide/what-is-scheduler.html https://docs.aws.amazon.com/step-functions/latest/dg/welcome.html
Author Name
Josh Rodgers
Author Image URL
https://raw.githubusercontent.com/awsjosh/serverless-patterns/awsjosh-feature-create-and-delete-ngw/stepfunctions-create-delete-ngw/docs/awsjosh.jpg
Author Bio
Josh Rodgers is a Senior Solutions Architect for AWS who works with enterprise customers in the Travel and Hospitality vertical. Josh enjoys working with customers to solve complex problems with a focus on serverless technologies, DevOps, and security. Outside of work, Josh enjoys hiking, playing music, skydiving, painting, and spending time with family.
Author Twitter handle
No response
Author LinkedIn URL
https://www.linkedin.com/in/joshuamrodgers/
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