Create a zone with resource records in DNS hosting via Terraform

We recommend creating resources in order. If you create all resources at once, Terraform will account for dependencies between resources that you specified in the configuration file. If dependencies are not specified, resources will be created in parallel, which may lead to errors. For instance, a resource required for creating another resource might not have been created yet.

Optional: configure providers.
Create a zone.
Create resource records.
Delegate domain management.

Configuration files

Example file for configuring providers

terraform {
  required_providers {
    servercore  = {
      source  = "terraform.servercore.com/servercore/servercore"
      version = "~> 6.0"
    }
    openstack = {
      source  = "terraform-provider-openstack/openstack"
      version = "2.1.0"
    }
  }
}

provider "servercore" {
  domain_name = "123456"
  username    = "user"
  password    = "password"
  auth_region = "uz-1"
  auth_url    = "https://cloud.api.servercore.com/identity/v3/"
}

resource "servercore_project_v2" "project_1" {
  name = "project"
}

resource "servercore_iam_serviceuser_v1" "serviceuser_1" {
  name         = "username"
  password     = "password"
  role {
    role_name  = "member"
    scope      = "project"
    project_id = servercore_project_v2.project_1.id 
  }
}

provider "openstack" {
  auth_url    = "https://cloud.api.servercore.com/identity/v3"
  domain_name = "123456"
  tenant_id   = servercore_project_v2.project_1.id
  user_name   = servercore_iam_serviceuser_v1.serviceuser_1.name
  password    = servercore_iam_serviceuser_v1.serviceuser_1.password
  region      = "uz-1"
}

Example file for creating a zone with resource records in DNS hosting

resource "servercore_domains_zone_v2" "zone_1" {
  name       = "example.com."
  project_id = servercore_project_v2.project_1.id
}

resource "servercore_domains_rrset_v2" "a_rrset_1" {
  zone_id    = servercore_domains_zone_v2.zone_1.id
  name       = servercore_domains_zone_v2.zone_1.name
  type       = "A"
  ttl        = 60
  project_id = servercore_project_v2.project_1.id
  records {
    content = "203.0.113.5"
  }
  records {
    content = "203.0.113.6"
  }
}

resource "servercore_domains_rrset_v2" "mx_rrset_1" {
  zone_id    = servercore_domains_zone_v2.zone_1.id
  name       = servercore_domains_zone_v2.zone_1.name
  type       = "MX"
  ttl        = 60
  project_id = servercore_project_v2.project_1.id
  records {
    content = "10 mail.example.org."
  }
}

resource "servercore_domains_rrset_v2" "txt_rrset_1" {
  zone_id    = servercore_domains_zone_v2.zone_1.id
  name       = servercore_domains_zone_v2.zone_1.name
  type       = "TXT"
  ttl        = 60
  project_id = servercore_project_v2.project_1.id
  records {
    content = "\"v=spf1 include:spf.servercore-smtp.com ?all\""
  }
}

1. Optional: configure providers

If you have configured the Servercore and OpenStack providers, skip this step.

Make sure that in the control panel you have created a service user with the member role in the Account access scope and iam.admin.
Create a directory to store configuration files and a separate file with the .tf extension to configure providers.
Add the Servercore and OpenStack providers to the file for provider configuration:
```
terraform {
  required_providers {
    servercore  = {
      source  = "terraform.servercore.com/servercore/servercore"
      version = "~> 7.1.0"
    }
    openstack = {
      source  = "terraform-provider-openstack/openstack"
      version = "2.1.0"
    }
  }
}
```
Here version is the provider version. The current version of the OpenStack provider can be found in the Terraform Registry and GitHub.

For more information about products, services, and features that can be managed using providers, see the Servercore and OpenStack Providers guide.
Initialize the Servercore provider:
```
provider "servercore" {
  domain_name = "123456"
  username    = "user"
  password    = "password"
  auth_region = "uz-1"
  auth_url    = "https://cloud.api.servercore.com/identity/v3/"
}
```
Where:
- domain_name — Servercore account number. You can find it in the control panel in the top-right corner;
- username — name of the service user with the member role in the Account access scope and iam.admin. You can view it in the control panel: in the top menu, click IAM → Service Users section (the section is only available to the Account Owner and a user with the iam.admin role);
- password — service user password. You can view it when creating the user or change it to a new one;
- auth_region — pool for authorization, for example, uz-1. You can create resources in other pools. A list of available pools can be found in the Availability Matrix guide.
Create a project:
```
resource "servercore_project_v2" "project_1" {
  name = "project"
}
```
See a detailed description of the servercore_project_v2 resource.
Create a service user to access the project and assign them the member role in the Project access scope:
```
resource "servercore_iam_serviceuser_v1" "serviceuser_1" {
  name         = "username"
  password     = "password"
  role {
    role_name  = "member"
    scope      = "project"
    project_id = servercore_project_v2.project_1.id
  }
}
```
Where:
- username — username;
- password — user password. The password must be at least 20 characters long and include at least:
  - one uppercase and one lowercase Latin letter (A-Z, a-z);
  - one digit (0-9);
  - one special character from the ASCII Printable 7-Bit Special Characters list:
    !"#$%&'()*+,-./:;<=>?@[]^_{|}~;
- project_id — project ID. You can find it in the control panel: in the top menu, click Products and select Cloud Servers → open the projects menu → in the row of the target project, click .
See a detailed description of the servercore_iam_serviceuser_v1 resource.

Initialize the OpenStack provider:

provider "openstack" {
  auth_url    = "https://cloud.api.servercore.com/identity/v3"
  domain_name = "123456"
  tenant_id   = servercore_project_v2.project_1.id
  user_name   = servercore_iam_serviceuser_v1.serviceuser_1.name
  password    = servercore_iam_serviceuser_v1.serviceuser_1.password
  region      = "uz-1"
}

Where:

domain_name — Servercore account number. You can find it in the control panel in the top-right corner;
region — pool, for example, uz-1. All resources will be created in this pool. A list of available pools can be found in the Availability Matrix guide.

If you are creating resources while configuring providers, add the depends_on argument for OpenStack resources. For example, for the openstack_networking_network_v2 resource:

resource "openstack_networking_network_v2" "network_1" {
  name           = "private-network"
  admin_state_up = "true"

  depends_on = [
    servercore_project_v2.project_1,
    servercore_iam_serviceuser_v1.serviceuser_1
  ]
}

Open the CLI.
Initialize the Terraform configuration in the directory:
```
terraform init
```
Verify that the configuration files are syntactically correct:
```
terraform validate
```
Format the configuration files:
```
terraform fmt
```
Check which resources will be created:
```
terraform plan
```
Apply the changes and create the resources:
```
terraform apply
```
Confirm creation — enter yes and press Enter. The created resources will appear in the control panel.
If quotas were insufficient to create the resources, increase the quotas.

2. Create a zone

resource "servercore_domains_zone_v2" "zone_1" {
  name       = "example.com."
  project_id = servercore_project_v2.project_1.id
}

Here name is the zone name, for example example.com.

See the detailed resource description for servercore_domains_zone_v2.

3. Create resource records

resource "servercore_domains_rrset_v2" "a_rrset_1" {
  zone_id    = servercore_domains_zone_v2.zone_1.id
  name       = servercore_domains_zone_v2.zone_1.name
  type       = "A"
  ttl        = 60
  project_id = servercore_project_v2.project_1.id
  records {
    content = "203.0.113.5"
  }
  records {
    content = "203.0.113.6"
  }
}

resource "servercore_domains_rrset_v2" "mx_rrset_1" {
  zone_id    = servercore_domains_zone_v2.zone_1.id
  name       = servercore_domains_zone_v2.zone_1.name
  type       = "MX"
  ttl        = 60
  project_id = servercore_project_v2.project_1.id
  records {
    content = "10 mail.example.org."
  }
}

resource "servercore_domains_rrset_v2" "txt_rrset_1" {
  zone_id    = servercore_domains_zone_v2.zone_1.id
  name       = servercore_domains_zone_v2.zone_1.name
  type       = "TXT"
  ttl        = 60
  project_id = servercore_project_v2.project_1.id
  records {
    content = "\"v=spf1 include:spf.servercore-smtp.com ?all\""
  }
}

Where:

type — record type;
ttl — record time to live in seconds, from 60 to 604 800;
content — record value.

See the detailed resource description for servercore_domains_rrset_v2.

4. Delegate domain management

To transfer management of domain resource records to Servercore servers, you must delegate the domain — specify these servers in the domain's NS records.

Go to the control panel of the domain registrar where your domain is registered.
In the NS records, replace the values with Servercore's NS servers: a.ns.srv.cr, b.ns.srv.cr, c.ns.srv.cr, d.ns.srv.cr. Each server must be specified in a separate record.