sniproxy service: init

nixos/modules/misc/ids.nix

@@ -265,6 +265,7 @@
       factorio = 241;
       emby = 242;
       graylog = 243;
+      sniproxy = 244;
 
       # When adding a uid, make sure it doesn't match an existing gid. And don't use uids above 399!
 
@@ -500,6 +501,7 @@
       taskd = 240;
       factorio = 241;
       emby = 242;
+      sniproxy = 244;
 
       # When adding a gid, make sure it doesn't match an existing
       # uid. Users and groups with the same name should have equal

nixos/modules/module-list.nix

@@ -379,6 +379,7 @@
   ./services/networking/skydns.nix
   ./services/networking/shairport-sync.nix
   ./services/networking/shout.nix
+  ./services/networking/sniproxy.nix
   ./services/networking/softether.nix
   ./services/networking/spiped.nix
   ./services/networking/sslh.nix

nixos/modules/services/networking/sniproxy.nix

@@ -0,0 +1,99 @@
+{ config, pkgs, lib, ... }:
+
+with lib;
+
+let
+
+  cfg = config.services.sniproxy;
+
+  configFile = pkgs.writeText "sniproxy.conf" ''
+    user ${cfg.user}
+    pidfile /run/sniproxy.pid
+    ${cfg.config}
+  '';
+
+in
+{
+  options = {
+    services.sniproxy = {
+      enable = mkEnableOption "sniproxy server";
+
+      user = mkOption {
+        type = types.str;
+        default = "sniproxy";
+        description = "User account under which sniproxy runs.";
+      };
+
+      group = mkOption {
+        type = types.str;
+        default = "sniproxy";
+        description = "Group under which sniproxy runs.";
+      };
+
+      config = mkOption {
+        type = types.lines;
+        default = "";
+        description = "sniproxy.conf configuration excluding the daemon username and pid file.";
+        example = literalExample ''
+          error_log {
+            filename /var/log/sniproxy/error.log
+          }
+          access_log {
+            filename /var/log/sniproxy/access.log
+          }
+          listen 443 {
+            proto tls
+          }
+          table {
+            example.com 192.0.2.10
+            example.net 192.0.2.20
+        }
+        '';
+      };
+
+      logDir = mkOption {
+        type = types.str;
+        default = "/var/log/sniproxy/";
+        description = "Location of the log directory for sniproxy.";
+      };
+
+    };
+
+  };
+
+  config = mkIf cfg.enable {
+    systemd.services.sniproxy = {
+      description = "sniproxy server";
+      after = [ "network.target" ];
+      wantedBy = [ "multi-user.target" ];
+      preStart = ''
+        test -d ${cfg.logDir} || {
+          echo "Creating initial log directory for sniproxy in ${cfg.logDir}"
+          mkdir -p ${cfg.logDir}
+          chmod 640 ${cfg.logDir}
+          }
+        chown -R ${cfg.user}:${cfg.group} ${cfg.logDir}
+      '';
+
+      serviceConfig = {
+        Type = "forking";
+        ExecStart = "${pkgs.sniproxy}/bin/sniproxy -c ${configFile}";
+        Restart = "always";
+      };
+    };
+
+    users.extraUsers = mkIf (cfg.user == "sniproxy") {
+      sniproxy = {
+        group = cfg.group;
+        uid = config.ids.uids.sniproxy;
+      };
+    };
+
+    users.extraGroups = mkIf (cfg.group == "sniproxy") {
+      sniproxy = {
+        gid = config.ids.gids.sniproxy;
+      };
+    };
+
+  };
+}