DevOps Classroom notes 11/Nov/2025

Terraform block

• Refer Here for terraform block
• This block allows us to put restrictions on
  • terraform version
  • provider versions
• Versioning constraints

Ntier architecture in Azure

• Refer Here for the changes done

Extend ntier architecture of AWS by security groups

• Create a security group called as web which opens from all ips
  • 80 (TCP)
  • 443 (TCP)
  • 22 (TCP)

Parent and child resources

• Examples:
  • security group & security group rule
  • network subnet
• There are two ways of creating them
  • child within parent resource (block)
  • child written seperately (resource)
• Refer Here for the changes done to deal with security group rules as different resources.

Extend ntier architecture of azure by network security groups

• Create a network security group called as web which opens from all ips
  • 80 (TCP)
  • 443 (TCP)
  • 22 (TCP)