feat(cache): add cache os

Author: klarkc

README.md

@@ -2,4 +2,5 @@
 
 [![Test](https://github.com/klarkc/os/actions/workflows/test.yml/badge.svg?branch=main)](https://github.com/klarkc/os/actions/workflows/test.yml?query=branch%3Amain)
 
-This is my brand new attempt to use NixOS as my personal OS.
+Personal collection of NixOS machines.
+

flake.nix

@@ -23,7 +23,7 @@
           else
             nixosSystem options;
         # TODO: find a faster way to run vm in devShell
-        mkRecoverVm = efi: name: args: pkgs.writeShellApplication {
+        mkVirtualMachine = efi: name: args: pkgs.writeShellApplication {
           name = "${name}-vm";
           text = ''
             IMG="${name}-efi.img"
@@ -47,19 +47,23 @@
     {
       nixosConfigurations = {
         inherit (machines.recover) recover-os;
+        inherit (machines.cache) cache-os;
       };
 
       packages.${system} = {
         inherit (machines.recover) recover-efi recover-vm recover-kvm;
+        inherit (machines.cache) cache-efi cache-vm cache-kvm;
       };
 
       devShells.${system}.default =
         pkgs.mkShell
           {
             packages =
-              with machines.recover; [
-                recover-vm
-                recover-kvm
+              with machines; [
+                recover.recover-vm
+                recover.recover-kvm
+                cache.cache-vm
+                cache.cache-kvm
               ];
 
           };

machines/cache/default.nix

@@ -0,0 +1,45 @@
+{ system, lib, pkgs, ... }:
+let
+  inherit (lib) mkSystem mkVirtualMachine;
+  inherit (pkgs.lib) mkDefault;
+  cache-module = {
+    networking = {
+      hostName = "cache-os";
+      networkmanager.enable = true;
+    };
+    boot = {
+      kernelParams = [
+        "copytoram"
+        "console=ttyS0,115200"
+        "console=tty1"
+        "boot.shell_on_fail"
+      ];
+      loader = {
+        timeout = 15;
+        grub = {
+          enable = true;
+          device = "nodev";
+          efiSupport = true;
+          useOSProber = true;
+        };
+      };
+    };
+    fileSystems."/".device = mkDefault "none";
+  };
+in
+rec {
+  cache-os = mkSystem {
+    inherit system;
+    modules = [ cache-module ];
+  };
+
+  cache-efi = mkSystem {
+    inherit system;
+    modules = [ cache-module ];
+    format = "raw-efi";
+  };
+
+  cache-vm = mkVirtualMachine cache-efi "cache" "";
+
+  cache-kvm = mkVirtualMachine cache-efi "cache" "--enable-kvm";
+}

machines/default.nix

@@ -1,4 +1,5 @@
 ctx:
 {
   recover = import ./recover ctx;
+  cache = import ./cache ctx;
 }

machines/recover/default.nix

@@ -1,6 +1,6 @@
 { system, lib, pkgs, ... }:
 let
-  inherit (lib) mkSystem mkRecoverVm;
+  inherit (lib) mkSystem mkVirtualMachine;
   inherit (pkgs.lib) mkDefault;
   recover-module = {
     nix = {
@@ -132,7 +132,7 @@ rec {
     format = "raw-efi";
   };
 
-  recover-vm = mkRecoverVm recover-efi "recover" "";
+  recover-vm = mkVirtualMachine recover-efi "recover" "";
 
-  recover-kvm = mkRecoverVm recover-efi "recover" "--enable-kvm";
+  recover-kvm = mkVirtualMachine recover-efi "recover" "--enable-kvm";
 }