Write an example DNS layout
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Alex 2022-12-07 16:54:38 +01:00
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@ -65,3 +65,28 @@ Here is the relevant Nix configuration snippet that sets up these metadata value
### ... later ...
services.consul.extraConfig.node_meta = node_meta;
```
### Example DNS layout for a Deuxfleurs cluster (see nixcfg repo for global setup)
- All IPv4 and IPv6 addresses of running Tricot nodes are registered using D53
for the root domain, e.g. `deuxfleurs.fr`
- The IPv6 and IPv6 addresses of running Tricot nodes in each site are
registered using D53 for the subdomain `<site_name>.site.<domain_name>`, e.g.
`neptune.site.deuxfleurs.fr`
- For subdomains of global HTTP services (e.g. Garage), a CNAME entry is made
by hand to the root domain , e.g. `garage.deuxfleurs.fr IN CNAME
deuxfleurs.fr`
- For subdomains of HTTP services that run only at one place at once (e.g.
Guichet, Grafana, Synapse, ...), a CNAME entry is registered automatically
using D53 to the subdomain of the site on where it is running.
In this case, users will be routed to any Tricot daemon running on one of
the nodes of the site, which will then proxy the request to the final
destination node through Wireguard.
- For non-HTTP services such as e-mail, a specific subdomain such as
`smtp.deuxfleurs.fr` is created and populated with the correct IPv4 and IPv6
addresses by D53 tags on the SMTP server's Consul service. Then, the `MX`
entry is made to point to this dedicated subdomain.