AWS Cloudformation Scripts

Launch Configuration for your application servers in order to deploy four servers, two located in each of your private subnets. The launch configuration will be used by an auto-scaling group.

In this project, I have to deploy web servers for a highly available web app using CloudFormation. I wrote the code that creates and deploys the infrastructure and application for an Instagram-like app from the ground up.

Prerequisite

• AWS CLI Installed and Configured. If you don't have CLI configured please refer this article.

Creating Stack

• Goto file server-parameters.json and update S3Bucket with your bucket name.
• Upload udacity.zip to your bucket.
• First create network

./create.sh <network-stack-name> network.yml network_parameters.json

Then create server stack -

./create.sh <server-stack-name> servers.yml servers-parameters.json

Head to CloudFormation on AWS Console and in udagram-servers output you will have Project URL.

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Changing Instance Size

By default the script will launch you application on t2.medium instances. To update this, head to servers-parameters.json file, chamge the ParameterValue of key "InstanceType" to your suitable type.

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Updating Stack

If you make changes in Script after creating stack, use

• To update network stack

./create.sh <network-stack-name> network.yml network_parameters.json

• To update server stack

./create.sh <server-stack-name> servers.yml servers-parameters.json