cluster/services/storage: mount heresy via external-storage

cluster/services/storage/heresy.nix

@@ -1,101 +1,16 @@
-{ config, lib, pkgs, ... }:
-
-let
-  s3qlWithSystemd = pkgs.s3ql.overrideAttrs (old: {
-    propagatedBuildInputs = old.propagatedBuildInputs ++ [
-      pkgs.python3Packages.systemd
-    ];
-  });
-
-  dirs = {
-    cache = "/srv/storage/private/s3ql-cache";
-    underlay = "/mnt/heresy";
-    mount = "/srv/heresy";
-  };
-in
-
 {
-  age.secrets = {
-    storageBoxCredentials.file = ./secrets/storage-box-credentials.age;
-    heresyEncryptionKey.file = ./secrets/heresy-encryption-key.age;
-  };
-
-  boot.supportedFilesystems = [ "cifs" ];
-
-  fileSystems."${dirs.underlay}" = {
-    fsType = "cifs";
-    device = "//u357754.your-storagebox.de/u357754-sub1/fs/heresy";
-    options = [
-      "credentials=${config.age.secrets.storageBoxCredentials.path}"
-      "dir_mode=0700"
-      "file_mode=0600"
-      "_netdev"
-      "x-systemd.automount"
-    ];
-  };
-
-  systemd = {
-    tmpfiles.rules = [
-      "d '${dirs.cache}' 0700 root root - -"
-    ];
-    services.heresy = {
-      description = "Heresy Filesystem";
-      wantedBy = [ "multi-user.target" ];
-      requires = [ "mnt-heresy.mount" ];
-      wants = [ "remote-fs.target" ];
-      after = [ "mnt-heresy.mount" ];
-      before = [ "remote-fs.target" ];
-
-      # used by umount.s3ql
-      path = with pkgs; [
-        psmisc
-        util-linux
-      ];
-
-      serviceConfig = let
-        commonOptions = [
-          "--compress" "none"
-          "--cachedir" dirs.cache
-          "--authfile" config.age.secrets.heresyEncryptionKey.path
-        ];
-      in {
-        Type = "notify";
-
-        ExecStartPre = map lib.escapeShellArgs [
-          [
-            "${pkgs.coreutils}/bin/install" "-dm755" dirs.mount
-          ]
-          ([
-            "${s3qlWithSystemd}/bin/fsck.s3ql"
-            "local://${dirs.underlay}"
-          ] ++ commonOptions)
-        ];
-        ExecStart = lib.escapeShellArgs ([
-          "${s3qlWithSystemd}/bin/mount.s3ql"
-          "local://${dirs.underlay}"
-          dirs.mount
-          "--fs-name" "heresy"
-          "--allow-other"
-          "--systemd" "--fg"
-          "--log" "none"
-        ] ++ commonOptions);
-
-        ExecStop = lib.escapeShellArgs [
-          "${s3qlWithSystemd}/bin/umount.s3ql"
-          "--log" "none"
-          dirs.mount
-        ];
-
-        # fsck and unmounting might take a while
-        TimeoutStartSec = "600s";
-        TimeoutStopSec = "600s";
-
-        # s3ql only handles SIGINT
-        KillSignal = "SIGINT";
-
-        Restart = "on-failure";
-        RestartSec = "10s";
-      };
+  services.external-storage = {
+    underlays.heresy = {
+      subUser = "sub1";
+      credentialsFile = ./secrets/storage-box-credentials.age;
+      path = "/fs/heresy";
+    };
+    fileSystems.heresy = {
+      mountpoint = "/srv/heresy";
+      unitName = "heresy";
+      unitDescription = "Heresy Filesystem";
+      encryptionKeyFile = ./secrets/heresy-encryption-key.age;
+      underlay = "heresy";
     };
   };
 }