liquidd: add netns

- Adds liquidd to netns-isolation.services
- Adds rpcbind, rpcallowip, and mainchainrpchost options to allow using
  liquidd with network namespaces
- Adds bind option (defaults to localhost) as target of hidden service

modules/netns-isolation.nix

@@ -96,6 +96,10 @@ in {
           id = 14;
           connections = [ "bitcoind" ];
         };
+        liquidd = {
+          id = 15;
+          connections = [ "bitcoind" ];
+        };
       };
 
       systemd.services = {
@@ -215,6 +219,21 @@ in {
         '';
       };
 
+      # liquidd: Custom netns configs
+      services.liquidd = mkIf config.services.liquidd.enable {
+        bind = netns.liquidd.address;
+        rpcbind = [
+          "${netns.liquidd.address}"
+          "127.0.0.1"
+        ];
+        rpcallowip = [
+          "127.0.0.1"
+        ] ++ lib.lists.concatMap (s: [
+          "${netns.${s}.address}"
+        ]) netns.liquidd.availableNetns;
+        mainchainrpchost = netns.bitcoind.address;
+      };
+
     })
     # Custom netns config option values if netns-isolation not enabled
     (mkIf (!cfg.enable) {