From bb3836768594ca8faa1b8349a4c7c2f7224457f4 Mon Sep 17 00:00:00 2001
From: GHOSCHT <31184695+GHOSCHT@users.noreply.github.com>
Date: Sun, 31 Mar 2024 22:04:31 +0200
Subject: [PATCH] Add zfs cluster

---
 hosts/franz/default.nix   |  15 +++--
 hosts/franz/disko/zfs.nix | 120 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 131 insertions(+), 4 deletions(-)
 create mode 100644 hosts/franz/disko/zfs.nix

diff --git a/hosts/franz/default.nix b/hosts/franz/default.nix
index 3c8db81..89945c7 100644
--- a/hosts/franz/default.nix
+++ b/hosts/franz/default.nix
@@ -14,6 +14,7 @@ in {
 
     ./hardware-configuration.nix
     (import ../../disko/btrfs-swap.nix {device = "/dev/nvme0n1";})
+    ./disko/zfs.nix
 
     ../common/global
 
@@ -25,6 +26,16 @@ in {
     ./arion
   ];
 
+  # Enable ZFS
+  boot.supportedFilesystems = ["zfs"];
+  networking.hostId = "f014fc43";
+
+  systemd.enableEmergencyMode = false;
+
+  # Prevent zfs from being automounted by fstab auto discovery & zfs
+  fileSystems."/storage/dataset".options = ["noauto"];
+  fileSystems."/storage".options = ["noauto"];
+
   users.mutableUsers = true;
   users.users.${vars.user} = {
     password = "changeme";
@@ -38,10 +49,6 @@ in {
   };
   security.pam.enableSSHAgentAuth = true;
 
-  fileSystems."/drives/hdd" = {
-    device = "/dev/disk/by-uuid/7d5eaff7-c17d-4fac-b7d7-7aa3c35b9a29";
-  };
-
   nixpkgs = {
     overlays = [
       outputs.overlays.additions
diff --git a/hosts/franz/disko/zfs.nix b/hosts/franz/disko/zfs.nix
new file mode 100644
index 0000000..056fb7f
--- /dev/null
+++ b/hosts/franz/disko/zfs.nix
@@ -0,0 +1,120 @@
+{
+  disko.devices = {
+    disk = {
+      a = {
+        type = "disk";
+        device = "/dev/sda";
+        content = {
+          type = "gpt";
+          partitions = {
+            zfs = {
+              size = "100%";
+              content = {
+                type = "zfs";
+                pool = "storage";
+              };
+            };
+          };
+        };
+      };
+      b = {
+        type = "disk";
+        device = "/dev/sdb";
+        content = {
+          type = "gpt";
+          partitions = {
+            zfs = {
+              size = "100%";
+              content = {
+                type = "zfs";
+                pool = "storage";
+              };
+            };
+          };
+        };
+      };
+      c = {
+        type = "disk";
+        device = "/dev/sdc";
+        content = {
+          type = "gpt";
+          partitions = {
+            zfs = {
+              size = "100%";
+              content = {
+                type = "zfs";
+                pool = "storage";
+              };
+            };
+          };
+        };
+      };
+      d = {
+        type = "disk";
+        device = "/dev/sdd";
+        content = {
+          type = "gpt";
+          partitions = {
+            zfs = {
+              size = "100%";
+              content = {
+                type = "zfs";
+                pool = "storage";
+              };
+            };
+          };
+        };
+      };
+      e = {
+        type = "disk";
+        device = "/dev/sde";
+        content = {
+          type = "gpt";
+          partitions = {
+            zfs = {
+              size = "100%";
+              content = {
+                type = "zfs";
+                pool = "storage";
+              };
+            };
+          };
+        };
+      };
+      f = {
+        type = "disk";
+        device = "/dev/sdf";
+        content = {
+          type = "gpt";
+          partitions = {
+            zfs = {
+              size = "100%";
+              content = {
+                type = "zfs";
+                pool = "storage";
+              };
+            };
+          };
+        };
+      };
+    };
+    zpool = {
+      storage = {
+        type = "zpool";
+        mode = "raidz2";
+        mountpoint = "/storage";
+        datasets = {
+          dataset = {
+            type = "zfs_fs";
+            mountpoint = "/storage/dataset";
+            options = {
+              encryption = "on";
+              keyformat = "hex";
+              keylocation = "file:///home/ghoscht/.zfs/secret.key";
+            };
+          };
+        };
+      };
+    };
+  };
+}