add microvms, and try to set up basics

Signed-off-by: ahuston-0 <aliceghuston@gmail.com>

flake.lock

@@ -267,6 +267,30 @@
         "type": "github"
       }
     },
+    "microvm": {
+      "inputs": {
+        "flake-utils": [
+          "flake-utils"
+        ],
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "spectrum": "spectrum"
+      },
+      "locked": {
+        "lastModified": 1716382614,
+        "narHash": "sha256-dwUYl8jyMNKidPEM9gTafcRe+3pUh2rH3ZlBrUpsvnw=",
+        "owner": "astro",
+        "repo": "microvm.nix",
+        "rev": "a59c3167f673ce29b65c674deb2bee73d151a96c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "astro",
+        "repo": "microvm.nix",
+        "type": "github"
+      }
+    },
     "nix": {
       "inputs": {
         "flake-compat": [
@@ -609,6 +633,7 @@
         "flake-utils": "flake-utils_2",
         "home-manager": "home-manager",
         "hyprland-contrib": "hyprland-contrib",
+        "microvm": "microvm",
         "nix": "nix",
         "nix-index-database": "nix-index-database",
         "nixos-generators": "nixos-generators",
@@ -733,6 +758,22 @@
         "type": "github"
       }
     },
+    "spectrum": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1708358594,
+        "narHash": "sha256-e71YOotu2FYA67HoC/voJDTFsiPpZNRwmiQb4f94OxQ=",
+        "ref": "refs/heads/main",
+        "rev": "6d0e73864d28794cdbd26ab7b37259ab0e1e044c",
+        "revCount": 614,
+        "type": "git",
+        "url": "https://spectrum-os.org/git/spectrum"
+      },
+      "original": {
+        "type": "git",
+        "url": "https://spectrum-os.org/git/spectrum"
+      }
+    },
     "systems": {
       "locked": {
         "lastModified": 1681028828,

flake.nix

@@ -72,6 +72,14 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
+    microvm = {
+      url = "github:astro/microvm.nix";
+      inputs = {
+        nixpkgs.follows = "nixpkgs";
+        flake-utils.follows = "flake-utils";
+      };
+    };
+
     nix = {
       url = "github:NixOS/nix/latest-release";
       inputs = {

modules/microvm-host.nix

@@ -0,0 +1,33 @@
+{
+  config,
+  lib,
+  inputs,
+  ...
+}:
+let
+  cfg = config.rad-dev.microvm-host;
+  inherit (inputs.microvm.nixosModules) microvm;
+in
+{
+  # imports = [microvm.host];
+  options.rad-dev.microvm-host = {
+    enable = lib.mkEnableOption "microvm-host";
+  };
+  config = lib.mkIf cfg.enable {
+    networking.useNetworkd = true;
+    # microvm.shares = [
+    #   {
+    #     tag = "ro-store";
+    #     source = "/nix/store";
+    #     mountPoint = "/nix/.ro-store";
+    #   }
+    # ];
+    #     systemd.tmpfiles.rules = map (vmHost:
+    #   let
+    #     machineId = lib.addresses.machineId.${vmHost};
+    #   in
+    #     # creates a symlink of each MicroVM's journal under the host's /var/log/journal
+    #     "L+ /var/log/journal/${machineId} - - - - /var/lib/microvms/${vmHost}/journal/${machineId}"
+    # ) (builtins.attrNames lib.addresses.machineId);
+  };
+}

systems/palatine-hill/configuration.nix

@@ -9,11 +9,13 @@
     ./attic.nix
     ./docker.nix
     ./hydra.nix
+    ./microvms.nix
     ./minio.nix
     ./networking.nix
     ./nextcloud.nix
     ./services.nix
     ./zfs.nix
+    ./networking.nix
   ];
 
   programs.git.lfs.enable = false;

systems/palatine-hill/default.nix

@@ -4,5 +4,8 @@
     "alice"
     "richie"
   ];
-  modules = [ inputs.attic.nixosModules.atticd ];
+  modules = [
+    inputs.attic.nixosModules.atticd
+    inputs.microvm.nixosModules.host
+  ];
 }

systems/palatine-hill/microvms.nix

@@ -0,0 +1,10 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+{
+  rad-dev.microvm-host.enable = true;
+}