feat: add server modules

1 files changed, 113 insertions, 0 deletions

diff --git a/nixos/serverModules/nfs.nix b/nixos/serverModules/nfs.nix
new file mode 100644
index 0000000..5a88697
--- /dev/null
+++ b/nixos/serverModules/nfs.nix
@@ -0,0 +1,113 @@
+{ config, lib, ... }:
+with lib;
+let
+  cfg = config.nfs;
+in
+{
+  options = {
+    nfs = {
+      server = mkOption {
+        description = ''
+          NFS server configuration.
+        '';
+        type = types.submodule {
+          options = {
+            enable = mkEnableOption "Enable nfs server";
+            exportsPath = mkOption {
+              type = types.str;
+              default = "/export";
+              description = ''
+          A path to the dir, where exports will be binded.
+        '';
+            };
+
+            defaultExportIps = mkOption {
+              type = types.listOf (types.str);
+              description = ''
+          A list of ip addresses, that will be used as default in exportDirs
+        '';
+            };
+
+            defaultExportParams = mkOption {
+              type = types.str;
+              default = "rw,nohide,insecure,no_subtree_check";
+              description = ''
+          Params, that will be used as default in exportDirs
+        '';
+            };
+
+            exportDirs = mkOption {
+              description = ''
+          A list of directories to export.
+        '';
+              type = types.listOf (types.submodule {
+                options = {
+                  path = mkOption {
+                    type = types.str;
+                    description = ''
+                A path to the directory to export.
+              '';
+                  };
+                  exportPath = mkOption {
+                    type = types.str;
+                    default = "";
+                    description = ''
+                A path that will be binded to the export directory in the exportsPath.
+              '';
+                  };
+                  ips = mkOption {
+                    type = types.listOf (types.str);
+                    default = cfg.server.defaultExportIps;
+                    description = ''
+                A list of ip addresses to export the dir to.
+              '';
+                  };
+                  params = mkOption {
+                    type = types.str;
+                    default = cfg.server.defaultExportParams;
+                    description = ''
+                Params for the ip addresses.
+              '';
+                  };
+                };
+              });
+            };
+          };
+        };
+      };
+    };
+  };
+
+  config = mkIf cfg.server.enable {
+    services.nfs.server = {
+      enable = true;
+      exports = "${cfg.server.exportsPath} ${concatMapStrings (ip: "${ip}(rw,fsid=0,no_subtree_check) ") cfg.server.defaultExportIps}\n"
+                + concatMapStrings
+                  (dir:
+                    let
+                      ips = concatMapStrings (ip: "${ip}(${dir.params}) ") dir.ips;
+                      exportPath = if dir.exportPath != "" then dir.exportPath else
+                        baseNameOf dir.path;
+                    in "${cfg.server.exportsPath}/${exportPath} ${ips}\n")
+                  cfg.server.exportDirs;
+    };
+
+    systemd.tmpfiles.rules = [
+      "d ${cfg.server.exportsPath} 0744 nobody nogroup"
+    ];
+
+    fileSystems = listToAttrs (map (exportDir:
+      let
+        exportPath = if exportDir.exportPath != "" then exportDir.exportPath else
+          baseNameOf exportDir.path;
+        fullExportPath = "${cfg.server.exportsPath}/${exportPath}";
+      in 
+        {
+          name = fullExportPath;
+          value = {
+            device = exportDir.path;
+            options = ["bind"];
+          };
+        }) cfg.server.exportDirs);
+  };
+}