From 4c1e2435551ed5e4e7b58280c9b82186795f322e Mon Sep 17 00:00:00 2001
From: mrsu <contact@sjplab.com>
Date: Sat, 29 Jun 2024 16:21:28 +0100
Subject: [PATCH] link lxd preseed to zfs volume

---
 hosts/common/disks/zfs/zspeed.nix              | 18 +++++++++++++++---
 hosts/common/optional/lxd/profiles/default.nix |  6 +++---
 hosts/nebula/default.nix                       |  3 +++
 3 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/hosts/common/disks/zfs/zspeed.nix b/hosts/common/disks/zfs/zspeed.nix
index f04e870..6edd363 100644
--- a/hosts/common/disks/zfs/zspeed.nix
+++ b/hosts/common/disks/zfs/zspeed.nix
@@ -1,4 +1,16 @@
-{
+{ pkgs
+, lib
+, ...
+}:
+let
+  };
+   In your own system use something like this:
+  import (builtins.fetchGit {
+    url = "https://github.com/nix-community/disko";
+    ref = "master";
+  }) {
+    inherit lib;
+  };{
   disko.devices = {
     disk = {
       x = {
@@ -45,13 +57,13 @@
           "xattr" = "sa";
           "ashift" = "13";
         };
-        mountpoint = "/mnt/zfs";
+        mountpoint = "/mnt/zpool";
         postCreateHook = "zfs list -t snapshot -H -o name | grep -E '^zspeed@blank$' || zfs snapshot zspeed@blank";
 
         datasets = {
           postgres = {
             type = "zfs_volume";
-            size = "10G";
+            size = "10G -s";
             content = {
               type = "filesystem";
               format = "ext4";
diff --git a/hosts/common/optional/lxd/profiles/default.nix b/hosts/common/optional/lxd/profiles/default.nix
index 98e3ba4..87fd741 100644
--- a/hosts/common/optional/lxd/profiles/default.nix
+++ b/hosts/common/optional/lxd/profiles/default.nix
@@ -10,9 +10,9 @@
   };
 
   storage_pool = {
-    name = "test";
-    driver = "zfs";
-    config.source = "zspeed/test";
+    name = "postgres";
+    driver = "disk";
+    config.source = "/mnt/postgres";
   };
 
   profile = {
diff --git a/hosts/nebula/default.nix b/hosts/nebula/default.nix
index e1e67ce..eb91028 100644
--- a/hosts/nebula/default.nix
+++ b/hosts/nebula/default.nix
@@ -17,6 +17,9 @@ in
       inputs.disko.nixosModules.disko
       (import ../common/disks { device = dev; impermanence = impermanence; fsType = fsType; encrypted = encrypted; })
 
+      # Zfs disk configuration
+      ../common/disks/zfs/zspeed.nix
+
       # Import core options
       ./hardware-configuration.nix
       ../common/core