Demo: Lambda/Stepfunctions Deployment Preferences

This repo is a working implementation of AWS Serverless Application Model (SAM) deployment preferences.

The majority of interest will be in the deploy.sam.yaml

This file contains the deployment information for a simple hello-world lambda function. This contains example of how to enable:

• Canary/Linear Deployments
• PreTraffic lambda function validation (Post traffic enabled the same way)
• Alarms to trigger automated cloudformation rollback based on error threshold
• Conditions to control when these

To test out these deployment strategies, recommendation is to deploy into nbos-sandbox-np. The conditions in the same template have excluded dev so you can swap between dev/tst in sandbox to see the differences (stg does not exist in sandbox)

• dev will be a quick deployment
• tst will be a safe deployment with all options enabled

Requirements

Dependancies

• GNU Make > 4.2.1
• aws-cli > 1.14.60
• node version > 11.1.0
• npm version > 6.4.1
• saml2aws > 2.10.0

Dev Dependancies

• direnv

Build

Build commands are configured in the Makefile:

make build

Deploy

To deploy this locally:

1. Have a valid AWS Account cli session configured (saml2aws)
2. Have your environment variables configured (direnv or manually)

make deploy

More information on Deployment Preferences is available at:

• Versent Confluence
• SAM Safe Lambda Deployments
• AWS Blog - Implmenting Canary Deployments