Cloudformation (contd..)

• The current state is present over here
• Now the deployments of the architecture can be in any region, but as of now our template has a hard coded values of regions, we need dynamic values there. AWS has parameters which are referred as AWS-Specific parameter types Refer Here
• Now using a specific parameter AZ Name
• For changes made Refer Here
• We need three more subnets for high availability
  • websecondary
  • appsecondary
  • dbsecondary
• Ensure they are from different AZ.
• The changes are over here
• Create a stack from this template
• Lets create an Internet gateway and attach it to our vpc Refer Here for template changes.
• Lets create two route tables and associate them with subnets
  • public rt :
    1. Will have route to internet gateway
    2. associated with web & web ha subnets
  • private rt:
    1. This will not have route to igw
    2. will be associated for other subnets
• Refer Here for the changes made.