feat: add db-01

Signed-off-by: Lander Van den Bulcke <landervandenbulcke@gmail.com>

flake.nix

@@ -66,6 +66,13 @@
         };
 
         # servers
+        db-01 = nixpkgs.lib.nixosSystem {
+          system = "aarch64-linux";
+          specialArgs = { inherit inputs outputs; };
+          modules = [
+            ./hosts/db-01
+          ];
+        };
         hosting-01 = nixpkgs.lib.nixosSystem {
           system = "aarch64-linux";
           specialArgs = { inherit inputs outputs; };

hosts/db-01/default.nix

@@ -0,0 +1,26 @@
+{
+  inputs,
+  config,
+  ...
+}:
+{
+  imports = [
+    ./disk-config.nix
+    {
+      _module.args.disks = [ "/dev/sda" ];
+    }
+
+    ../common/servers
+  ];
+
+  time.timeZone = "Europe/Berlin";
+
+  networking.hostName = "db-01";
+  networking.nameservers = [ "8.8.8.8" ];
+
+  services.postgresql = {
+    enable = true;
+  };
+
+  system.stateVersion = "25.05";
+}

hosts/db-01/disk-config.nix

@@ -0,0 +1,52 @@
+{
+  lib,
+  disks ? [ "/dev/sda" ],
+  ...
+}:
+{
+  disko.devices = {
+    disk = lib.genAttrs disks (disk: {
+      device = disk;
+      type = "disk";
+      content = {
+        type = "gpt";
+        partitions = {
+          boot = {
+            name = "boot";
+            size = "256M";
+            type = "EF00";
+            content = {
+              type = "filesystem";
+              format = "vfat";
+              mountpoint = "/boot";
+            };
+          };
+          main = {
+            size = "100%";
+            content = {
+              type = "btrfs";
+              extraArgs = [ "-f" ]; # override existing partition
+              subvolumes = {
+                "/" = {
+                  mountOptions = [ "compress=zstd" ];
+                  mountpoint = "/";
+                };
+                "/home" = {
+                  mountOptions = [ "compress=zstd" ];
+                  mountpoint = "/home";
+                };
+                "/nix" = {
+                  mountOptions = [
+                    "compress=zstd"
+                    "noatime"
+                  ];
+                  mountpoint = "/nix";
+                };
+              };
+            };
+          };
+        };
+      };
+    });
+  };
+}