Training

Blue Green AWS and Azure use cases

The project is devided to several branches, each branch represent a step

Requirements

An AWS account & the AWS CLI
An Azure account & the AZ CLI
terraform
packer
yarn

Step 1

Step one creates networks and security rules

To execute the step 1

> cd providers/aws/terraform/
> git checkout step-1
> terraform init
> terraform apply

Step 2

Step one creates an packer image and deploy a web application behind a load balancer

To execute the step 2

> cd providers/aws/packer/app
> yarn install
> cd providers/aws/packer/
> git checkout step-2
> packer build ubuntu.json
> # copy the generated image-id to the aws_ami resource in the blue.tf file
> terraform init
> terraform apply

It should outputs the dns name of the new load balancer

Step 3

Step three creates a packer image and deploy a new version of the web application behind a new load balancer

To execute the step 3

> cd providers/aws/packer/app
> yarn install
> cd providers/aws/packer/
> git checkout step-3
> modify the server.js file
> packer build ubuntu.json
> # copy the generated image-id to the aws_ami resource in green.tf file 
> terraform init
> terraform apply

It should outputs the dns name of the new load balancer

Step 4

Add a continuous integration pipeline