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refactor: port hosts/architect/dns.nix to new modules/core/dns.nix structure

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This commit is contained in:
Giulio De Pasquale (aider) 2025-04-26 17:24:01 +01:00
parent 70c39b782b
commit 48b86055a0
3 changed files with 127 additions and 82 deletions
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98
hosts/architect/dns.nix
View File

@ -1,90 +1,24 @@
{ config, pkgs, ... }:
with pkgs.lib;
let
generateCoreDNSConfig = domains:
let
generateForDomain = domain: conf:
concatMapStrings
(iface:
let
architectIP = config.architect.networks.${iface}.devices.architect.address;
interfaceNet = config.architect.networks.${iface}.net;
deviceViews = concatMapStrings
({ name, device }:
let
deviceIP = device.address;
in
''
. {
view ${name} {
expr client_ip() == '${deviceIP}'
}
forward . tls://45.90.28.77 tls://45.90.30.77 tls://2a07:a8c0::d6:5174 tls://2a07:a8c1::d6:5174 {
tls_servername ${name}-d65174.dns.nextdns.io
health_check 5s
}
}
''
)
(attrsets.mapAttrsToList
(name: device: { inherit name device; })
config.architect.networks.${iface}.devices
);
in
''
${domain} {
view ${iface} {
expr incidr(client_ip(), '${interfaceNet}')
}
template IN A ${domain} {
answer "${domain}. 60 IN A ${architectIP}"
}
template IN HTTPS ${domain} {
answer "${domain}. 60 IN HTTPS 1 . ipv4hint=\"${architectIP}\""
}
cache
log
}
${deviceViews}
''
)
conf.dnsInterfaces;
in
concatStrings (mapAttrsToList generateForDomain domains);
allDomains = config.architect.vhost // {
"architect.devs.giugl.io" = { dnsInterfaces = [ "lan" "tailscale" ]; };
};
domain = "adguard.giugl.io";
in
{
architect.vhost.${domain} = with config.architect.networks; {
dnsInterfaces = [ "tailscale" "lan" ];
# Enable the DNS module
pepe.core.dns = {
enable = true;
nextDNSId = "d65174";
extraDomains = {
"architect.devs.giugl.io" = {
dnsInterfaces = [ "lan" "tailscale" ];
};
};
};
# Configure AdGuard
pepe.core.vhost.hosts."adguard.giugl.io" = with config.pepe.core.network; {
dnsInterfaces = [ interfaceTypes.vpn interfaceTypes.lan ];
locations."/" = {
port = config.services.adguardhome.port;
allowLan = true;
allow = [ tailscale.net ];
allowLAN = true;
allowVPN = true;
};
};
services.coredns = {
enable = true;
config = ''
${generateCoreDNSConfig allDomains}
. {
forward . tls://45.90.28.77 tls://45.90.30.77 tls://2a07:a8c0::d6:5174 tls://2a07:a8c1::d6:5174 {
tls_servername lan-d65174.dns.nextdns.io
health_check 5s
}
}
'';
};
}

1
modules/core/default.nix
View File

@ -5,5 +5,6 @@
./network.nix
./vhost.nix
./firewall.nix
./dns.nix
];
}

110
modules/core/dns.nix Normal file
View File

@ -0,0 +1,110 @@
{ config, lib, pkgs, ... }:
let
inherit (lib) mkOption types mkIf concatMapStrings concatStrings mapAttrsToList attrsets;
cfg = config.pepe.core.dns;
in
{
options.pepe.core.dns = {
enable = mkOption {
type = types.bool;
default = false;
description = "Whether to enable the DNS server.";
};
nextDNSId = mkOption {
type = types.str;
default = "d65174";
description = "NextDNS ID for DNS over TLS.";
};
extraDomains = mkOption {
type = types.attrsOf (types.submodule {
options = {
dnsInterfaces = mkOption {
type = types.listOf types.str;
default = [];
description = "List of interfaces to add DNS entries for this domain.";
};
};
});
default = {};
description = "Additional domains to add to DNS configuration.";
};
};
config = mkIf cfg.enable {
services.coredns = {
enable = true;
config = let
generateCoreDNSConfig = domains:
let
generateForDomain = domain: conf:
concatMapStrings
(ifaceName:
let
iface = config.pepe.core.network.interfaces.${ifaceName};
serverIP = iface.devices.server.address or "127.0.0.1";
interfaceNet = iface.net;
deviceViews = concatMapStrings
({ name, device }:
let
deviceIP = device.address;
in
''
. {
view ${name} {
expr client_ip() == '${deviceIP}'
}
forward . tls://45.90.28.77 tls://45.90.30.77 tls://2a07:a8c0::${cfg.nextDNSId} tls://2a07:a8c1::${cfg.nextDNSId} {
tls_servername ${name}-${cfg.nextDNSId}.dns.nextdns.io
health_check 5s
}
}
''
)
(attrsets.mapAttrsToList
(name: device: { inherit name device; })
iface.devices
);
in
''
${domain} {
view ${ifaceName} {
expr incidr(client_ip(), '${interfaceNet}')
}
template IN A ${domain} {
answer "${domain}. 60 IN A ${serverIP}"
}
template IN HTTPS ${domain} {
answer "${domain}. 60 IN HTTPS 1 . ipv4hint=\"${serverIP}\""
}
cache
log
}
${deviceViews}
''
)
conf.dnsInterfaces;
in
concatStrings (mapAttrsToList generateForDomain domains);
allDomains = config.pepe.core.vhost.hosts // cfg.extraDomains;
in ''
${generateCoreDNSConfig allDomains}
. {
forward . tls://45.90.28.77 tls://45.90.30.77 tls://2a07:a8c0::${cfg.nextDNSId} tls://2a07:a8c1::${cfg.nextDNSId} {
tls_servername lan-${cfg.nextDNSId}.dns.nextdns.io
health_check 5s
}
}
'';
};
};
}