Services: set default home dirs

modules/module.nix.template

@@ -38,4 +38,12 @@ in
   config = lib.mkIf cfg.enable {
     # Add changes applied by this module here.
   };
+
+  systemd.services = {
+    # Forces systemd to wait for the module's configuration directory to be available before starting the service.
+    myModule.unitConfig.RequiresMountsFor = cfg.home;
+
+    # Tells Nginx to wait for the service to be available before coming online.
+    nginx.wants = [ config.systemd.services.myModule.name ];
+  };
 }

modules/services/acme.nix

@@ -9,13 +9,11 @@ in
       enable = lib.mkEnableOption (
         lib.mdDoc "Enable the ACME client (for Let's Encrypt TLS certificates)."
       );
-
       certs = lib.mkOption {
         default = { };
         type = lib.types.attrs;
         description = "Cert configurations for ACME.";
       };
-
       defaultEmail = lib.mkOption {
         default = "";
         type = lib.types.str;

modules/services/airsonic.nix

@@ -12,7 +12,7 @@ in
     aux.system.services.airsonic = {
       enable = lib.mkEnableOption (lib.mdDoc "Enables Airsonic Advanced media streaming service.");
       home = lib.mkOption {
-        default = "";
+        default = "/var/lib/airsonic";
         type = lib.types.str;
         description = "Where to store Airsonic's files";
       };
@@ -70,7 +70,7 @@ in
     };
 
     systemd.services = {
-      airsonic = lib.mkIf (cfg.home != "") { unitConfig.RequiresMountsFor = cfg.home; };
+      airsonic.unitConfig.RequiresMountsFor = cfg.home;
       nginx.wants = [ config.systemd.services.airsonic.name ];
     };
   };

modules/services/autoupgrade.nix

@@ -58,6 +58,7 @@ in
           User = "root";
         };
         path = config.aux.system.corePackages;
+        unitConfig.RequiresMountsFor = cfg.configDir;
         # Git diffing strategy courtesy of https://stackoverflow.com/a/40255467
         script = ''
           cd ${cfg.configDir}
@@ -94,6 +95,7 @@ in
           User = cfg.user;
         };
         path = config.aux.system.corePackages;
+        unitConfig.RequiresMountsFor = cfg.configDir;
         script = ''
           set -eu
           cd ${cfg.configDir}

modules/services/deluge.nix

@@ -9,7 +9,7 @@ in
     aux.system.services.deluge = {
       enable = lib.mkEnableOption "Enables Deluge.";
       home = lib.mkOption {
-        default = "";
+        default = "/var/lib/deluge";
         type = lib.types.str;
         description = "Where to store Deluge's files";
       };
@@ -52,6 +52,9 @@ in
       };
     };
 
-    systemd.services.deluge = lib.mkIf (cfg.home != "") { unitConfig.RequiresMountsFor = cfg.home; };
+    systemd.services = {
+      deluge.unitConfig.RequiresMountsFor = cfg.home;
+      nginx.wants = [ config.systemd.services.deluge.name ];
+    };
   };
 }

modules/services/duplicacy-web.nix

@@ -14,7 +14,7 @@ in
     aux.system.services.duplicacy-web = {
       enable = lib.mkEnableOption "Enables duplicacy-web";
       home = lib.mkOption {
-        default = "";
+        default = "/var/lib/duplicacy-web";
         type = lib.types.str;
         description = "Environment where duplicacy-web stores its config files";
       };
@@ -46,6 +46,7 @@ in
       environment = {
         HOME = cfg.home;
       };
-    } // lib.optionalAttrs (cfg.home != "") { unitConfig.RequiresMountsFor = cfg.home; };
+      unitConfig.RequiresMountsFor = cfg.home;
+    };
   };
 }

modules/services/forgejo.nix

@@ -26,7 +26,7 @@ in
     aux.system.services.forgejo = {
       enable = lib.mkEnableOption (lib.mdDoc "Enables Forgejo Git hosting service.");
       domain = lib.mkOption {
-        default = "";
+        default = "/var/lib/forgejo";
         type = lib.types.str;
         description = "The root domain that Forgejo will be hosted on.";
         example = "example.com";
@@ -124,7 +124,7 @@ in
     };
 
     systemd.services = {
-      forgejo = lib.mkIf (cfg.home != "") { unitConfig.RequiresMountsFor = cfg.home; };
+      forgejo.unitConfig.RequiresMountsFor = cfg.home;
       nginx.wants = [ config.systemd.services.forgejo.name ];
     };
   };

modules/services/home-assistant.nix

@@ -68,5 +68,10 @@ in
         };
       };
     };
+
+    systemd.services = {
+      home-assistant.unitConfig.RequiresMountsFor = cfg.home;
+      nginx.wants = [ config.systemd.services.home-assistant.name ];
+    };
   };
 }

modules/services/jellyfin.nix

@@ -16,7 +16,7 @@ in
     aux.system.services.jellyfin = {
       enable = lib.mkEnableOption (lib.mdDoc "Enables the Jellyfin media streaming service.");
       home = lib.mkOption {
-        default = "";
+        default = "/var/lib/jellyfin";
         type = lib.types.str;
         description = "Where to store Jellyfin's files";
       };
@@ -97,7 +97,7 @@ in
     ];
 
     systemd.services = {
-      jellyfin = lib.mkIf (cfg.home != "") { unitConfig.RequiresMountsFor = cfg.home; };
+      jellyfin.unitConfig.RequiresMountsFor = cfg.home;
       nginx.wants = [ config.systemd.services.jellyfin.name ];
     };
   };