From 90d02af7f72862b2656c035479a8a763e4702bfb Mon Sep 17 00:00:00 2001
From: Minijackson <minijackson@riseup.net>
Date: Fri, 28 May 2021 19:05:58 +0200
Subject: zfs: init

---
 flake.nix               |  7 +++++++
 usecases/server/zfs.nix | 17 +++++++++++++++++
 2 files changed, 24 insertions(+)
 create mode 100644 usecases/server/zfs.nix

diff --git a/flake.nix b/flake.nix
index 1242f21..6abace9 100644
--- a/flake.nix
+++ b/flake.nix
@@ -74,6 +74,7 @@
         fail2ban = (import ./usecases/server/fail2ban.nix inputs);
         monitoringTarget = (import ./usecases/server/monitoring-target.nix inputs);
         smartd = (import ./usecases/server/smartd.nix inputs);
+        zfs = (import ./usecases/server/zfs.nix inputs);
       };
 
       profiles = {
@@ -162,6 +163,12 @@
           imports = [
             self.nixosModules.test
             self.nixosModules.profiles.server
+            self.nixosModules.usecases.server.zfs
+
+            {
+              # Needed for ZFS
+              networking.hostId = "4e98920d";
+            }
           ];
         };
         testScript = ''
diff --git a/usecases/server/zfs.nix b/usecases/server/zfs.nix
new file mode 100644
index 0000000..58f4df8
--- /dev/null
+++ b/usecases/server/zfs.nix
@@ -0,0 +1,17 @@
+inputs:
+
+{ ... }:
+
+{
+  boot.supportedFilesystems = [ "zfs" ];
+
+  services.zfs = {
+    autoScrub.enable = true;
+
+    # To be enabled on a dataset by dataset basis with:
+    #
+    # zfs set com.sun:auto-snapshot=true <pool>/<fs>
+    #
+    autoSnapshot.enable = true;
+  };
+}
-- 
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