templates: add nixos and darwin minimal host configurations

dominicegginton · Dec 31, 2024 · 9b58584 · 9b58584
1 parent 8d1ef58
commit 9b58584
Show file tree

Hide file tree

Showing 4 changed files with 237 additions and 0 deletions.
diff --git a/hosts/hostname/default.nix b/hosts/hostname/default.nix
@@ -0,0 +1,116 @@
+{ lib, ... }:
+
+{
+  imports = [ ./hardware-configuration.nix ];
+
+  disko.devices = {
+    disk = {
+      main = {
+        device = "/dev/sda";
+        type = "disk";
+        content = {
+          type = "gpt";
+          partitions = {
+            ESP = {
+              priority = 1;
+              name = "ESP";
+              start = "1M";
+              end = "128M";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+                mountOptions = [ "umask=0077" ];
+              };
+            };
+            SWAP = {
+              size = "4G";
+              content = {
+                type = "swap";
+                resumeDevice = true;
+              };
+            };
+            root = {
+              name = "root";
+              size = "100%";
+              content = { type = "lvm_pv"; vg = "root_vg"; };
+            };
+          };
+        };
+      };
+    };
+    lvm_vg = {
+      root_vg = {
+        type = "lvm_vg";
+        lvs = {
+          root = {
+            size = "100%FREE";
+            content = {
+              type = "btrfs";
+              extraArgs = [ "-f" ];
+              subvolumes = {
+                "/root" = { mountpoint = "/"; };
+                "/persist" = {
+                  mountOptions = [ "subvol=persist" "noatime" ];
+                  mountpoint = "/persist";
+                };
+                "/nix" = {
+                  mountOptions = [ "subvol=nix" "noatime" ];
+                  mountpoint = "/nix";
+                };
+              };
+            };
+          };
+        };
+      };
+    };
+  };
+  boot.initrd.postDeviceCommands = lib.mkAfter ''
+    mkdir /btrfs_tmp
+    mount /dev/root_vg/root /btrfs_tmp
+    if [[ -e /btrfs_tmp/root ]]; then
+        mkdir -p /btrfs_tmp/old_roots
+        timestamp=$(date --date="@$(stat -c %Y /btrfs_tmp/root)" "+%Y-%m-%-d_%H:%M:%S")
+        mv /btrfs_tmp/root "/btrfs_tmp/old_roots/$timestamp"
+    fi
+    delete_subvolume_recursively() {
+        IFS=$'\n'
+        for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
+            delete_subvolume_recursively "/btrfs_tmp/$i"
+        done
+        btrfs subvolume delete "$1"
+    }
+    for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +30); do
+        delete_subvolume_recursively "$i"
+    done
+    btrfs subvolume create /btrfs_tmp/root
+    umount /btrfs_tmp
+  '';
+  programs.fuse.userAllowOther = true;
+  fileSystems."/persist".neededForBoot = true;
+  environment.persistence."/persist" = {
+    directories = [
+      "/etc/nixos"
+      "/var/log"
+      "/var/lib/bluetooth"
+      "/var/lib/nixos"
+      "/var/lib/systemd/coredump"
+      "/etc/NetworkManager/system-connections"
+      "/etc/ssh"
+      "/root/bitwarden-secrets"
+    ];
+    files = [ "/etc/machine-id" ];
+  };
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+  hardware.mwProCapture.enable = true;
+  hardware.logitech.wireless.enable = true;
+  hardware.logitech.wireless.enableGraphical = true;
+  modules = {
+    display.enable = true;
+    display.plasma.enable = true;
+    services.bluetooth.enable = true;
+    networking.wireless.enable = true;
+  };
+}
diff --git a/templates/darwin-host/hosts/darwin/hostname.nix b/templates/darwin-host/hosts/darwin/hostname.nix
@@ -0,0 +1 @@
+_: {}
diff --git a/templates/default.nix b/templates/default.nix
@@ -1,10 +1,14 @@
 _:
 
 {
+  darwin-host.path = ./darwin-host;
+  darwin-host.description = "Minimal Darwin host configuration for this workspace";
   dotnet-core.path = ./dotnet-core;
   dotnet-core.description = "Minimal .NET Core package";
   minimal.path = ./minimal;
   minimal.description = "Minimal Nix Flake workspace";
+  nixos-host.path = ./nixos-host;
+  nixos-host.description = "Minimal NixOS host configuration for this workspace";
   nodejs-angular.path = ./nodejs-angular;
   nodejs-angular.description = "Minimal NodeJS Angular package";
   nodejs-typescript.path = ./nodejs-typescript;

diff --git a/templates/nixos-host/hosts/hostname/default.nix b/templates/nixos-host/hosts/hostname/default.nix
@@ -0,0 +1,116 @@
+{ lib, ... }:
+
+{
+  imports = [ ./hardware-configuration.nix ];
+
+  disko.devices = {
+    disk = {
+      main = {
+        device = "/dev/sda";
+        type = "disk";
+        content = {
+          type = "gpt";
+          partitions = {
+            ESP = {
+              priority = 1;
+              name = "ESP";
+              start = "1M";
+              end = "128M";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+                mountOptions = [ "umask=0077" ];
+              };
+            };
+            SWAP = {
+              size = "4G";
+              content = {
+                type = "swap";
+                resumeDevice = true;
+              };
+            };
+            root = {
+              name = "root";
+              size = "100%";
+              content = { type = "lvm_pv"; vg = "root_vg"; };
+            };
+          };
+        };
+      };
+    };
+    lvm_vg = {
+      root_vg = {
+        type = "lvm_vg";
+        lvs = {
+          root = {
+            size = "100%FREE";
+            content = {
+              type = "btrfs";
+              extraArgs = [ "-f" ];
+              subvolumes = {
+                "/root" = { mountpoint = "/"; };
+                "/persist" = {
+                  mountOptions = [ "subvol=persist" "noatime" ];
+                  mountpoint = "/persist";
+                };
+                "/nix" = {
+                  mountOptions = [ "subvol=nix" "noatime" ];
+                  mountpoint = "/nix";
+                };
+              };
+            };
+          };
+        };
+      };
+    };
+  };
+  boot.initrd.postDeviceCommands = lib.mkAfter ''
+    mkdir /btrfs_tmp
+    mount /dev/root_vg/root /btrfs_tmp
+    if [[ -e /btrfs_tmp/root ]]; then
+        mkdir -p /btrfs_tmp/old_roots
+        timestamp=$(date --date="@$(stat -c %Y /btrfs_tmp/root)" "+%Y-%m-%-d_%H:%M:%S")
+        mv /btrfs_tmp/root "/btrfs_tmp/old_roots/$timestamp"
+    fi
+    delete_subvolume_recursively() {
+        IFS=$'\n'
+        for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
+            delete_subvolume_recursively "/btrfs_tmp/$i"
+        done
+        btrfs subvolume delete "$1"
+    }
+    for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +30); do
+        delete_subvolume_recursively "$i"
+    done
+    btrfs subvolume create /btrfs_tmp/root
+    umount /btrfs_tmp
+  '';
+  programs.fuse.userAllowOther = true;
+  fileSystems."/persist".neededForBoot = true;
+  environment.persistence."/persist" = {
+    directories = [
+      "/etc/nixos"
+      "/var/log"
+      "/var/lib/bluetooth"
+      "/var/lib/nixos"
+      "/var/lib/systemd/coredump"
+      "/etc/NetworkManager/system-connections"
+      "/etc/ssh"
+      "/root/bitwarden-secrets"
+    ];
+    files = [ "/etc/machine-id" ];
+  };
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+  hardware.mwProCapture.enable = true;
+  hardware.logitech.wireless.enable = true;
+  hardware.logitech.wireless.enableGraphical = true;
+  modules = {
+    display.enable = true;
+    display.plasma.enable = true;
+    services.bluetooth.enable = true;
+    networking.wireless.enable = true;
+  };
+}