Add disko config for hypnos

hosts/hypnos/README.md

@@ -13,7 +13,7 @@
 ### Disks
 Device | Partitions _(filesystem, size, usage)_
 --- | ---
-Apple SSD SM0512F | `/dev/nvme01` (ZFS, 500 GiB, NixOS Root)
+Apple SSD SM0512F | `/dev/sda1` (EFI, 256 MiB, NixOS Boot) <br> `/dev/sda2` (ZFS, 500 GiB, NixOS Root)
 
 #### ZFS pool layout
 ```

hosts/hypnos/disko-config.nix

@@ -0,0 +1,123 @@
+{
+  disko.devices = {
+    disk = {
+      main = {
+        type = "disk";
+        device = "/dev/disk/by-id/ata-APPLE_SSD_SM0512F_S1K5NYBF736152";
+        content = {
+          type = "gpt";
+          partitions = {
+            ESP = {
+              size = "256M";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+              };
+            };
+            zfs = {
+              size = "100%";
+              content = {
+                type = "zfs";
+                pool = "rpool";
+              };
+            };
+          };
+        };
+      };
+    };
+    zpool = {
+      rpool = {
+        type = "zpool";
+        options = {
+          ashift = "12";
+        };
+        rootFsOptions = {
+          canmount = "off";
+          mountpoint = "none";
+          dnodesize = "auto";
+          xattr = "sa";
+        };
+        mountpoint = "/";
+        postCreateHook = "zfs snapshot zroot@blank";
+        datasets = {
+          local = {
+            options = {
+              mountpoint = "none";
+            };
+          };
+          "local/nix" = {
+            mountpoint = "/nix";
+            options = {
+              atime = "off";
+              mountpoint = "legacy";
+            };
+          };
+          "local/tmp" = {
+            mountpoint = "/tmp";
+            options = {
+              setuid = "off";
+              devices = "off";
+              mountpoint = "legacy";
+            };
+          };
+          system = {
+            options = {
+              mountpoint = "none";
+              encryption = "aes-256-gcm";
+              keyformat = "passphrase";
+              keylocation = "file:///tmp/secret.key";
+            };
+            # use this to read the key during boot
+            postCreateHook = ''
+              zfs set keylocation="prompt" "rpool/$name";
+            '';
+          };
+          "system/var" = {
+            mountpoint = "/var";
+            options = {
+              mountpoint = "legacy";
+            };
+          };
+          "system/var/tmp" = {
+            mountpoint = "/var/tmp";
+            options = {
+              devices = "off";
+              mountpoint = "legacy";
+            };
+          };
+          "system/var/log" = {
+            mountpoint = "/var/log";
+            options = {
+              compression = "on";
+              acltype = "posix";
+              mountpoint = "legacy";
+            };
+          };
+          user = {
+            options = {
+              mountpoint = "none";
+              encryption = "aes-256-gcm";
+              keyformat = "passphrase";
+              keylocation = "file:///tmp/secret.key";
+            };
+            # use this to read the key during boot
+            postCreateHook = ''
+              zfs set keylocation="prompt" "rpool/$name";
+            '';
+          };
+          "user/home" = {
+            mountpoint = "/home";
+            options = {
+              setuid = "off";
+              devices = "off";
+              mountpoint = "legacy";
+            };
+          };
+        };
+      };
+    };
+  };
+}
+