module "server" {
  source  = "danylomikula/server/hcloud"
  version = "~> 1.0"

  servers = {
    web-1 = {
      server_type = "cx23"
      location    = "nbg1"
      image       = "ubuntu-24.04"
      ssh_keys    = [12345]

      labels = {
        role = "webserver"
      }
    }
  }
}

module "network" {
  source  = "danylomikula/network/hcloud"
  version = "~> 1.0"

  create_network = true
  name           = "app-network"
  ip_range       = "10.0.0.0/16"

  subnets = {
    main = {
      type         = "cloud"
      network_zone = "eu-central"
      ip_range     = "10.0.1.0/24"
    }
  }
}

module "servers" {
  source  = "danylomikula/server/hcloud"
  version = "~> 1.0"

  servers = {
    app-01 = {
      server_type = "cx23"
      location    = "nbg1"
      image       = "ubuntu-24.04"

      networks = [{
        network_id = module.network.network_id
        ip         = "10.0.1.10"
      }]
    }

    app-02 = {
      server_type = "cx23"
      location    = "fsn1"
      image       = "ubuntu-24.04"

      networks = [{
        network_id = module.network.network_id
        ip         = "10.0.1.11"
      }]
    }
  }

  common_ssh_keys = [12345]
  common_labels = {
    cluster    = "app"
    managed_by = "terraform"
  }
}

# Generate SSH key.
module "ssh_key" {
  source  = "danylomikula/ssh-key/hcloud"
  version = "~> 1.0"

  create_key = true
  name       = "cluster-key"
  algorithm  = "ED25519"
}

# Create network.
module "network" {
  source  = "danylomikula/network/hcloud"
  version = "~> 1.0"

  create_network = true
  name           = "web-network"
  ip_range       = "10.100.0.0/16"

  subnets = {
    web = {
      type         = "cloud"
      network_zone = "eu-central"
      ip_range     = "10.100.1.0/24"
    }
  }
}

# Create servers.
module "server" {
  source  = "danylomikula/server/hcloud"
  version = "~> 1.0"

  servers = {
    web-1 = {
      server_type = "cx23"
      location    = "nbg1"
      image       = "ubuntu-24.04"

      networks = [{
        network_id = module.network.network_id
        ip         = "10.100.1.10"
      }]

      labels = {
        role = "webserver"
      }
    }
  }

  common_ssh_keys = [module.ssh_key.ssh_key_id]

  common_labels = {
    managed_by = "terraform"
  }
}

# Find latest Rocky Linux 9 for x86 architecture.
data "hcloud_image" "rocky9" {
  with_selector     = "os-flavor=rocky"
  with_architecture = "x86"
  most_recent       = true
}

# Find latest Ubuntu for ARM64.
data "hcloud_image" "ubuntu_arm" {
  name              = "ubuntu-24.04"
  with_architecture = "arm64"
}

# Use in server configuration.
module "servers" {
  source  = "danylomikula/server/hcloud"
  version = "~> 1.0"

  servers = {
    app-01 = {
      server_type = "cx23"
      image       = data.hcloud_image.rocky9.name  # Uses latest Rocky 9.
      location    = "nbg1"
    }

    app-arm = {
      server_type = "cax11"  # ARM64 server.
      image       = data.hcloud_image.ubuntu_arm.name
      location    = "fsn1"
    }
  }
}