Cloudformation (Contd..)

• Current state of template
• Now lets add a database which is rds mysql
  • db instance type: db.t2.micro
  • db storage size: 20 GB
  • db backup retention: 0 days
• RDS Activities
  • Create a db subnet group Refer Here
  • With the changes done for subnet group create a changeset and execute the changeset to apply on the stack
  • Refer Here for dbsubnet changes
  • Now lets create a rds database as mentioned above Refer Here for cf syntax
  • The changes made are over here
• Lets create an ec2 instance for the app tier with tomcat installed
  • Creating ec2 instance from cloud formation Refer Here
  • For today lets hardcode image id (This makes our template work only in mumbai region)
  • We have our first draft version, which creates a ec2 instance and install tomcat server, but we need do the following
    1. Ensure ubuntu 18 ami is selected for all regions
    2. Ensure app subnet is selected
    3. Create a security group for app subnet and attach it
  • The current changes are available over here