High Availability Web Infrastructure on Amazon Web Services (AWS)

This project demos how to provision a high availability web infrastructure to AWS cloud using cloudformation scripts and other AWS resources.

How it works

The infrastructure diagram is as shown below:

During provisioning, when the stack is created or updated the webservers pull source code from the S3 bucket.

Usage

Shell Scripts has been written to automate the infra deployment process. Each of the shell scripts take two arguments

1. The operation: which is either create-stack or update-stack
2. The name of the stack.

• First you have to create an S3 bucket and upload the contents of bucket-contents to the root of the S3 bucket.

• Open network-params.json and server-params.json files and change the parameters to suit your use case.

• Deploy the network infrastructure Navigate to the root directory of the project and execute the following command.

  For windows

  network_deploy.bat create-stack <StackName>

  For Linux

  bash network_deploy.sh create-stack <StackName>

  OR

  chmod ./network_deploy.sh
  ./network_deploy.sh create-stack <StackName>

  To update the stack simply change create-stack to update-stack in the commands above.

• Deploy the Web Server infrastructure. Still on the root directory of the project, excute the following command.

  For windows

  server_deploy.bat create-stack <StackName>

  For Linux

  bash server_deploy.sh create-stack <StackName>

  OR

  chmod ./server_deploy.sh
  ./server_deploy.sh create-stack <StackName>

  To update the stack simply change create-stack to update-stack

Go to your cloud console and viola! you will see the link to the webserver via the stack exported output. See the example deployement from this scripts, let's hope it's still available.