initial commit

modules/nixos/cifsMount/default.nix

@@ -0,0 +1,91 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+with lib;
+
+let
+  cfg = config.services.cifsMount;
+in
+{
+
+  options.services.cifsMount = {
+    enable = mkEnableOption "CIFS mounting of predefined remote directories.";
+
+    # List of predefined remote CIFS shares to mount
+    remotes = mkOption {
+      type = with types; listOf (attrsOf str);
+      default = [ ];
+      description = "List of predefined remote CIFS shares to mount.";
+      example = [
+        {
+          # Example entry for a CIFS mount.
+          host = "remotehost";
+          shareName = "share";
+          mountPoint = "/local/mountpoint";
+          credentialsFile = "/path/to/credentials";
+          user = "yourusername";
+        }
+      ];
+    };
+  };
+
+  config = mkIf cfg.enable {
+    environment.systemPackages = with pkgs; [ cifs-utils ];
+
+    # Define /etc/fstab entries for each remote CIFS share
+    fileSystems = fold (
+      remote: fs:
+      let
+        mountOption = "credentials=${remote.credentialsFile},uid=${remote.user},gid=${remote.user},user,noauto";
+      in
+      fs
+      // {
+        "${toString remote.mountPoint}" = {
+          device = "//${remote.host}/${remote.shareName}";
+          fsType = "cifs";
+          options = [
+            (optionalString (remote.credentialsFile != null) "credentials=${remote.credentialsFile}")
+            "uid=${remote.user}"
+            "gid=${remote.user}"
+            "user"
+            "noauto"
+          ];
+        };
+      }
+    ) { } cfg.remotes;
+
+    # Create systemd user services for each remote CIFS share
+    systemd.user.services = fold (
+      remote: services:
+      let
+        serviceName = "cifs-mount-${remote.shareName}";
+      in
+      {
+        ${serviceName} = {
+          description = "Mount remote share: //${remote.host}/${remote.shareName} to ${remote.mountPoint}";
+          wantedBy = [ "graphical-session.target" ];
+          after = [ "graphical-session.target" ];
+
+          # Service configuration to mount and unmount CIFS share
+          serviceConfig = {
+            Type = "oneshot";
+            RemainAfterExit = true;
+            ExecStart = "mount //${remote.host}/${remote.shareName}";
+            ExecStop = "umount //${remote.host}/${remote.shareName}";
+            Restart = "on-failure";
+          };
+        };
+      }
+      // services
+    ) { } cfg.remotes;
+
+    # Ensure that all cifs-mount services are started with the graphical session
+    systemd.user.targets.graphical-session.wants = map (
+      remote: "cifs-mount-${remote.shareName}.service"
+    ) cfg.remotes;
+  };
+}