Overview

This repository is a demostration on how to use GitHub CodeSpaces customized with DevContainers for modern application development. It leverages AKS plus its Web Application Routing feature and Skaffold.

• Web Application Routing is a developer tool that makes it easier for developers to create dev environments accessible for TLS.
• Skaffold is a continous deployment tool used by developers to automate pushing changes to a Kubernetes cluster.
• DevContainers build consistent developer environments

Quicksteps

Complete Environment

NOTE: task up will create all required Azure resources (locked down to the Codespace's current IP Address) then deploy code via skaffold run

    az login --scope https://graph.microsoft.com/.default
    task up

Deploy Skaffold - Dev Mode

NOTE: Dev Mode will continuously build, test, and deploy changes to your kubernetes cluster when your code changes

    task skaffold -- dev

Deploy Skaffold - Run Mode

NOTE: Run Mode will build, test, and deploy your code to your kubernetes cluster once

    task skaffold -- run

Clean up

    task down

Notes

• This will create an AKS cluster and deploy code to it using Skaffold.
• If you are using Codespaces, then after a restart, do:

      task update-firewalls

  • This will add the Codespaces IP addres to the ACLs for Azure Container Registry, Key Vault and AKS

Validate

• Skaffold will automtically run Golang Unit test cases and a Custom curl Test on each build/deploy
• Web Applciation Routing will create an external load balancer and configure an Nginx ingress configured with a self signed certificate
  • The Uri will be in the form of https://api.${random_pet}-${random_id}.local.

        cd scripts
        ./network-tests.sh

• Skaffold is also set for port-forwading so the service can be accessible over localhost as well