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node_exporter on hel1-a

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Motiejus Jakštys
2023-08-06 00:47:32 +03:00
parent e1581adf18
commit c8525b4e6b
4 changed files with 58 additions and 20 deletions
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36
modules/services/friendlyport/default.nix
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@@ -4,7 +4,13 @@
myData,
...
}: {
options.mj.services.friendlyport = with lib.types; {
options.mj.services.friendlyport.motiejus = with lib.types; {
ports = lib.mkOption {
type = listOf int;
default = [];
};
};
options.mj.services.friendlyport.vpn = with lib.types; {
ports = lib.mkOption {
type = listOf int;
default = [];
@@ -12,15 +18,33 @@
};
config = let
ports = builtins.concatStringsSep "," (map builtins.toString config.mj.services.friendlyport.ports);
portsM = config.mj.services.friendlyport.motiejus.ports;
portsV = config.mj.services.friendlyport.vpn.ports;
portsMStr = builtins.concatStringsSep "," (map builtins.toString config.mj.services.friendlyport.motiejus.ports);
portsVStr = builtins.concatStringsSep "," (map builtins.toString config.mj.services.friendlyport.vpn.ports);
hosts = lib.attrVals ["mxp10.motiejus.jakst" "fwmine.motiejus.jakst"] myData.hosts;
ips = lib.catAttrs "jakstIP" hosts;
startLines = map (ip: "iptables -A INPUT -p tcp --match multiport --dports ${ports} --source ${ip} -j ACCEPT") ips;
startLinesM =
if builtins.length portsM > 0
then map (ip: "iptables -A INPUT -p tcp --match multiport --dports ${portsMStr} --source ${ip} -j ACCEPT") ips
else [];
startLinesV =
if builtins.length portsV > 0
then "iptables -A INPUT -p tcp --match multiport --dports ${portsVStr} --source ${myData.tailscale_subnet.cidr} -j ACCEPT"
else "";
# TODO: when stopping the firewall, systemd uses the old ports. So this is a two-phase process.
# How to stop the old one and start the new one?
stopLines = map (ip: "iptables -D INPUT -p tcp --match multiport --dports ${ports} --source ${ip} -j ACCEPT || :") ips;
stopLinesM =
if builtins.length portsM > 0
then map (ip: "iptables -D INPUT -p tcp --match multiport --dports ${portsMStr} --source ${ip} -j ACCEPT || :") ips
else [];
stopLinesV =
if builtins.length portsV > 0
then "iptables -D INPUT -p tcp --match multiport --dports ${portsVStr} --source ${myData.tailscale_subnet.cidr} -j ACCEPT || :"
else "";
in {
networking.firewall.extraCommands = lib.concatLines startLines;
networking.firewall.extraStopCommands = lib.concatLines stopLines;
networking.firewall.extraCommands = lib.concatLines (startLinesM ++ [startLinesV]);
networking.firewall.extraStopCommands = lib.concatLines (stopLinesM ++ [stopLinesV]);
};
}

2
modules/services/syncthing/default.nix
View File

@@ -14,7 +14,7 @@ in {
};
config = lib.mkIf config.mj.services.syncthing.enable {
mj.services.friendlyport.ports = [8384];
mj.services.friendlyport.motiejus.ports = [8384];
services.syncthing = {
enable = config.mj.services.syncthing.enable;