Deploy a high-availability new application using AWS CloudFormation infrastructure.

Architecture Diagram

File Structure

1. create.sh

   • use ssh key to deploy server into Public Subnets, helps with troubleshooting.

2. network-infrastructure.yml network-parameters.json

   • contains network resources to be deployed
   • includes VPC, two pairs of public and private subnets, Internet Gateway, NAT Gateways and Routing Tables for public and private subnets with associations

3. server-infrastructure.yml server-parameters.json

   • contains app resources to be deployed
   • includes Application services. In particular, Load Balancer, web servers and corresponding autoscaling, target and security groups.

4. update.sh

   • stack updates

• Bastion hosts (Optional). EC2 instances for troubleshooting of application web servers.

• TODO

Infrastructure Deployment

Instructions

Application Configurations:

Use AWS console or AWS ClI to create:

• an IAM profile and AMI Role
• security Key pair for your Instance.
• an EC2 Instance to connect its public DNS to your keypair
• s3 bucket - to downloading the application archive

Configure security groups:

• inbound port open at Http Port:80 to use it with Load balancer and Load balancer health checks
• allow all public traffic (0.0.0.0/0) on port:80 inbound
• outbound default HTTP port:80 to reach internal servers.

Deploy network Infrastructure:

• Run: the shell script create.sh using EC2 instance public DNS

• create network infrastructure cloudformation stacks:

• Run:./create.sh networkinfrastructure network-infrastructure.yml network-parameters.json

Deploying servers Infrastructure:

• Run: the shell script create.sh using EC2 instance public DNS

• create servers infrastructure cloudformation stacks:

• Run: ./create.sh serverinfrastructure server-infrastructure.yml server-parameters.json

Check cloud formation stack creation status:

• Run the shell script create.sh using EC2 instance public DNS

• Run: aws cloudformation list-stacks --stack-status-filter CREATE_COMPLETE

Update Infrastructure Cloud Formation stack:

• Run the shell script update.sh using EC2 instance public DNS

• update network infrastructure cloudformation stacks:

• Run: ./update.sh networkinfrastructure network-infrastructure.yml network-parameters.json

Update Infrastructure Cloud Formation stack:

• Run the shell script update.sh using EC2 instance public DNS

• update server infrastructure cloudformation stacks:

• Run: ./update.sh serverinfrastructure server-infrastructure.yml server-parameters.json

Output

Access Application with LoadBalancer public DNS url: Udagram.