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You need an existing EdgeDNS zone where you can make changes. If you don't have an EdgeDNS zone, then create one outside of Terraform (we'll explain why in a bit). Chose any domain of your preference for the new EdgeDNS zone.
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You should have a list of hostnames in a local variable named
apps_hostnamesfrom the previous exercise in module For Expressions.
New File
Create a new dns.tf file and add the akamai_dns_record resource. Remember that the DNZ zone name must match your already deployed zone name.
Configure
Using count configure akamai_dns_record to create as many CNAME records as entries in apps_hostnames.
Plan/Apply
Run terraform plan to confirm your changes. Run terraform apply if all looks in order.
As you can notice, Terraform will create the DNS records in the zone even if the zone is not managed by Terraform. The DNS records and zone are independent resources. This allows to manage only specific resources as code.
Commit
Commit your change and push to GitHub.