Moved off AWS. (#2)

- Instance in Hetzner.
- Data stored in Backblaze B2.

Reviewed-on: #2
Co-authored-by: M. V. Hutz <git@maximhutz.me>
Co-committed-by: M. V. Hutz <git@maximhutz.me>

terraform/routing.tf

@@ -1,13 +1,13 @@
 # The Route53 DNS zone.
 data "aws_route53_zone" "main" {
-  name = var.domain
+  name = local.domain
 }
 
 # Push all domain traffic through the reverse proxy.
 resource "aws_route53_record" "domain" {
   zone_id = data.aws_route53_zone.main.zone_id
-  name    = "${var.subdomain}.${data.aws_route53_zone.main.name}"
+  name    = "${local.subdomain}.${data.aws_route53_zone.main.name}"
   type    = "A"
   ttl     = "60"
-  records = [aws_eip.public.public_ip]
+  records = [hcloud_primary_ip.public_ip.ip_address]
 }