Terraform

• Terraform Style Guide Refer Here

Activity 1:

• Lets realize the following architecture
  
• Refer Here for the changes
• Generally resources have dependencies which in turn determine the order of creation
• Dependencies are of two types
  • explicit: This is created with the help of depends_on meta argument Refer Here
  • implicit: This is created while using attributes of other resources
• Refer Here for changes to make dependencies explicit
• Now lets use variables to accept the project id as input Refer Here
• Refer Here for the changes done
  
• Lets also add variables for subnets Refer Here for the changes done to add subnet variables
• when we have many variables passing them by adding multiple -var during terraform apply becomes difficult to manage we can use tfvars file Refer Here
• Refer Here for the changes.
  
• Terraform count to create multiple resources Refer Here
• Refer Here for the usage of count for subnets
• We can acheive the same results or similar results with for_each as well Refer Here
• Refer Here for the changes done