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dnscache service: cleanup and add forwardOnly

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This commit is contained in:
Nikolay Amiantov 2018-04-13 15:30:57 +03:00
parent 98270cb959
commit dccd5a8601
1 changed files with 23 additions and 6 deletions
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29
nixos/modules/services/networking/dnscache.nix
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@ -9,7 +9,7 @@ let
mkdir -p $out/{servers,ip}
${concatMapStrings (ip: ''
echo > "$out/ip/"${lib.escapeShellArg ip}
touch "$out/ip/"${lib.escapeShellArg ip}
'') cfg.clientIps}
${concatStrings (mapAttrsToList (host: ips: ''
@ -34,33 +34,49 @@ in {
options = {
services.dnscache = {
enable = mkOption {
default = false;
type = types.bool;
description = "Whether to run the dnscache caching dns server";
description = "Whether to run the dnscache caching dns server.";
};
ip = mkOption {
default = "0.0.0.0";
type = types.str;
description = "IP address on which to listen for connections";
description = "IP address on which to listen for connections.";
};
clientIps = mkOption {
default = [ "127.0.0.1" ];
type = types.listOf types.str;
description = "client IP addresses (or prefixes) from which to accept connections";
description = "Client IP addresses (or prefixes) from which to accept connections.";
example = ["192.168" "172.23.75.82"];
};
domainServers = mkOption {
default = { };
type = types.attrsOf (types.listOf types.str);
description = "table of {hostname: server} pairs to use as authoritative servers for hosts (and subhosts)";
description = ''
Table of {hostname: server} pairs to use as authoritative servers for hosts (and subhosts).
If entry for @ is not specified predefined list of root servers is used.
'';
example = {
"example.com" = ["8.8.8.8" "8.8.4.4"];
"@" = ["8.8.8.8" "8.8.4.4"];
"example.com" = ["192.168.100.100"];
};
};
forwardOnly = mkOption {
default = false;
type = types.bool;
description = ''
Whether to treat root servers (for @) as caching
servers, requesting addresses the same way a client does. This is
needed if you want to use e.g. Google DNS as your upstream DNS.
'';
};
};
};
@ -82,6 +98,7 @@ in {
'';
script = ''
cd /var/lib/dnscache/
${optionalString cfg.forwardOnly "export FORWARDONLY=1"}
exec ./run
'';
};