From 140b0d06e1201796830defbe8a5febe6a28c1cd1 Mon Sep 17 00:00:00 2001
From: oddlama <oddlama@oddlama.org>
Date: Sat, 6 Jan 2024 16:59:08 +0100
Subject: [PATCH] feat: back to qemu, cloud-hypervisor has issues with stopping
 automatically (kernel panics) and sometimes shared files are not available
 causing ssh to not work because libraries are missing

---
 modules/guests/common-guest-config.nix | 11 ++++++++++-
 modules/guests/microvm.nix             |  4 ++--
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/modules/guests/common-guest-config.nix b/modules/guests/common-guest-config.nix
index bce8aac..7a0a904 100644
--- a/modules/guests/common-guest-config.nix
+++ b/modules/guests/common-guest-config.nix
@@ -1,9 +1,18 @@
-_guestName: guestCfg: {lib, ...}: let
+_guestName: guestCfg: {
+  config,
+  lib,
+  ...
+}: let
   inherit (lib) mkForce;
 in {
   node.name = guestCfg.nodeName;
   node.type = guestCfg.backend;
 
+  # Set early hostname too, so we can associate those logs to this host and don't get "localhost" entries in loki
+  boot.kernelParams = lib.mkIf (!config.boot.isContainer) [
+    "systemd.hostname=${config.networking.hostName}"
+  ];
+
   nix = {
     settings.auto-optimise-store = mkForce false;
     optimise.automatic = mkForce false;
diff --git a/modules/guests/microvm.nix b/modules/guests/microvm.nix
index 9f9bbeb..fe04555 100644
--- a/modules/guests/microvm.nix
+++ b/modules/guests/microvm.nix
@@ -29,10 +29,10 @@ in {
     lib.microvm.mac = guestCfg.microvm.mac;
 
     microvm = {
-      hypervisor = mkDefault "cloud-hypervisor";
+      hypervisor = mkDefault "qemu";
 
       # Give them some juice by default
-      mem = mkDefault 2048;
+      mem = mkDefault (1024 + 2048);
 
       # Add a writable store overlay, but since this is always ephemeral
       # disable any store optimization from nix.