120 lines
3.3 KiB
Nix
120 lines
3.3 KiB
Nix
{
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config,
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lib,
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registry,
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...
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}:
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let
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cfg = config.modules.services.reverse-proxy;
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mkRegistryPath = registryName: host: entry: "registry.${registryName}.${host}.${entry}";
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mkUdpStream = host: entry: port:
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let
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compositeEntry = registry.join host entry;
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address = compositeEntry.address or (throw "no matching entry in registry.address for ${mkRegistryPath "route" host entry}");
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in
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{
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inherit host entry port address;
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};
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generatedVirtualHostList = lib.concatLists (
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lib.mapAttrsToList (
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host: routes:
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lib.mapAttrsToList (
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entry: route:
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let
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compositeEntry = registry.join host entry;
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address = compositeEntry.address or (throw "no matching entry in registry.address for ${mkRegistryPath "route" host entry}");
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in
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{
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inherit host entry;
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name = route.domain;
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value = {
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forceSSL = true;
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enableACME = true;
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locations."/".proxyPass = "http://${address}:${toString route.port}";
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};
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}
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) (lib.filterAttrs (_entry: route: route.port != null) routes)
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) registry.route
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);
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virtualHostsByDomain = lib.foldl' (
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acc: virtualHost:
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acc
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// {
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${virtualHost.name} = (acc.${virtualHost.name} or [ ]) ++ [ virtualHost ];
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}
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) { } generatedVirtualHostList;
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duplicateDomainMessages = lib.concatLists (
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lib.mapAttrsToList (
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domain: virtualHosts:
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if lib.length virtualHosts > 1 then
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[
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"duplicate route domain ${domain} in ${lib.concatMapStringsSep " and " (virtualHost: mkRegistryPath "route" virtualHost.host virtualHost.entry) virtualHosts}"
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]
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else
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[ ]
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) virtualHostsByDomain
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);
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generatedVirtualHosts =
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if duplicateDomainMessages != [ ] then
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throw (builtins.head duplicateDomainMessages)
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else
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lib.listToAttrs generatedVirtualHostList;
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generatedUdpStreams = lib.concatLists (
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lib.mapAttrsToList (
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host: routes:
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lib.concatLists (
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lib.mapAttrsToList (entry: route: map (mkUdpStream host entry) route.udp.ports) routes
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)
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) registry.route
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);
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generatedStreamConfig = lib.concatMapStringsSep "\n" (stream: ''
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server {
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listen ${toString stream.port} udp;
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proxy_pass ${stream.address}:${toString stream.port};
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}
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'') generatedUdpStreams;
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in
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{
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options.modules.services.reverse-proxy = {
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enable = lib.mkEnableOption "the public edge reverse proxy";
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};
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config = lib.mkIf cfg.enable {
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networking.firewall.allowedTCPPorts = [
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80
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443
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];
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networking.firewall.allowedUDPPorts = map (stream: stream.port) generatedUdpStreams;
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security.acme = {
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acceptTerms = true;
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defaults.email = "contact@alexion.dev";
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};
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services.nginx = {
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enable = true;
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commonHttpConfig = ''
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server {
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listen 0.0.0.0:443 ssl default_server;
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listen [::0]:443 ssl default_server;
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ssl_reject_handshake on;
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}
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'';
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recommendedGzipSettings = true;
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recommendedOptimisation = true;
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recommendedProxySettings = true;
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recommendedTlsSettings = true;
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streamConfig = lib.mkIf (generatedUdpStreams != [ ]) generatedStreamConfig;
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virtualHosts = generatedVirtualHosts;
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};
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};
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}
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