Removing the remains of gdns broke render.openstreetmap.org, so this
adds it back, pointing at the new European render servers which have
the most capacity.
Long term, a CDN that can handle failover would work better, but
this is a short-term fix to get it working.
// Fastly DNS based ACME Challenge requirement
CNAME("_acme-challenge.tile", "bxve5ryiwwv7woiraq.fastly-validations.com.", TTL("10m")),
+ A("render", CULEBRE_IPV4),
+ A("render", NIDHOGG_IPV4),
+ AAAA("render", CULEBRE_IPV6),
+ AAAA("render", NIDHOGG_IPV6),
+
// Services machine
A("ironbelly", IRONBELLY_IPV4),