[nixpkgs] 24.05 -> 24.11

this now runs any host as microvm. it removes shared directories for
microvms so no manuall setup is needed (expect you want persistence).
i took it from c3d2, thanks guys for the inspiration <3
https://gitea.c3d2.de/c3d2/nix-config/src/branch/master/packages.nix

README.md

@@ -8,7 +8,7 @@ the file structure is based on this [blog post](https://samleathers.com/posts/20
 
 #### durruti
 - nixos-container running on dedicated hetzner server
-- login via ```ssh -p 222 malobeo@5.9.153.217```
+- login via ```ssh -p 222 malobeo@dynamicdiscord.de```
 - if rebuild switch fails due to biglock do ```mount -o remount,rw /nix/var/nix/db```
 - currently is running tasklist in detached tmux session
   - [x] make module with systemd service out of that

doc/src/SUMMARY.md

@@ -12,6 +12,8 @@
             - [musik](./projekte/musik.md)
         - [TODO](./todo.md)
     - [How-to]()
+        - [Create New Host](./anleitung/create.md)
+        - [Sops](./anleitung/sops.md)            
         - [Updates](./anleitung/updates.md)
         - [Rollbacks](./anleitung/rollback.md)
         - [MicroVM](./anleitung/microvm.md)

doc/src/anleitung/create.md

@@ -0,0 +1,66 @@
+# Create host with disko-install
+How to use disko-install is described here: https://github.com/nix-community/disko/blob/master/docs/disko-install.md
+---
+Here are the exact steps to get bakunin running:  
+First create machines/hostname/configuration.nix  
+Add hosts nixosConfiguration in machines/configurations.nix  
+Boot nixos installer on the Machine.  
+``` bash
+# establish network connection
+wpa_passphrase "network" "password" > wpa.conf
+wpa_supplicant -B -i wlp3s0 -c wpa.conf
+ping 8.8.8.8
+# if that works continue
+
+# generate a base hardware config
+nixos-generate-config --root /tmp/config --no-filesystems
+
+# get the infra repo
+nix-shell -p git
+git clone https://git.dynamicdiscord.de/kalipso/infrastructure
+cd infrastructure
+
+# add the new generated hardware config (and import in hosts configuration.nix)
+cp /tmp/config/etc/nixos/hardware-configuration.nix machines/bakunin/
+
+# check which harddrive we want to install the system on
+lsblk #choose harddrive, in this case /dev/sda
+
+# run nixos-install on that harddrive
+sudo nix --extra-experimental-features flakes --extra-experimental-features nix-command run 'github:nix-community/disko/latest#disko-install' -- --flake .#bakunin --disk main /dev/sda
+
+# this failed with out of memory
+# running again showed: no disk left on device
+# it seems the usb stick i used for flashing is way to small
+# it is only 
+# with a bigger one (more than 8 gig i guess) it should work
+# instead the disko-install tool i try the old method - first partitioning using disko and then installing the system
+# for that i needed to adjust ./machines/modules/disko/btrfs-laptop.nix and set the disk to "/dev/sda"
+
+sudo nix --extra-experimental-features "flakes nix-command" run 'github:nix-community/disko/latest' -- --mode format --flake .#bakunin
+
+# failed with no space left on device.
+# problem is lots of data is written to the local /nix/store which is mounted on tmpfs in ram
+# it seems that a workaround could be modifying the bootable stick to contain a swap partition to extend tmpfs storage
+```
+
+# Testing Disko
+Testing disko partitioning is working quite well. Just run the following and check the datasets in the vm:
+```bash
+nix run -L .\#nixosConfigurations.fanny.config.system.build.vmWithDisko
+```
+
+Only problem is that encryption is not working, so it needs to be commented out. For testing host fanny the following parts in ```./machines/modules/disko/fanny.nix``` need to be commented out(for both pools!):
+```nix
+datasets = {
+  encrypted = {
+    options = {
+      encryption = "aes-256-gcm"; #THIS ONE
+      keyformat = "passphrase"; #THIS ONE
+      keylocation = "file:///tmp/root.key"; #THIS ONE
+    };
+    # use this to read the key during boot
+     postCreateHook = '' #THIS ONE 
+       zfs set keylocation="prompt" "zroot/$name"; #THIS ONE 
+     ''; #THIS ONE 
+```

doc/src/anleitung/microvm.md

@@ -12,16 +12,48 @@ Use durruti as orientation:
 "10.0.0.5" is the IP assigned to its tap interface.  
 
 ### Testing MicroVMs locally
-MicroVMs can be built and run easily on your local host.
+MicroVMs can be built and run easily on your local host, but they are not persistent!
-For durruti this is done by:
+For durruti for example this is done by:
 ``` bash
-sudo nix run .\#nixosConfigurations.durruti.config.microvm.declaredRunner
+nix run .\#durruti-vm
+```
+
+### Testing persistent microvms
+In order to test persistent microvms locally we need to create them using the ```microvm``` command.  
+This is necessary to be able to mount persistent /etc and /var volumes on those hosts.  
+Do the following:
+
+```bash
+# go into our repo and start the default dev shell (or us direnv)
+nix develop .#
+
+# create a microvm on your host (on the example of durruti)
+sudo microvm -c durruti -f git+file:///home/username/path/to/infrastructure/repo
+
+# start the vm
+sudo systemctl start microvm@durruti.serivce
+
+# this may fail, if so we most probably need to create /var /etc manually, then restart
+sudo mkdir /var/lib/microvms/durruti/{var, etc}
+
+# now you can for example get the rsa host key from /var/lib/microvms/durruti/etc/ssh/
+
+# alternatively u can run the vm in interactive mode (maybe stop the microvm@durruti.service first)
+microvm -r durruti
+
+# after u made changes to the microvm update and restart the vm 
+microvm -uR durruti
+
+# deleting the vm again:
+sudo systemctl stop microvm@durruti.service
+sudo systemctl stop microvm-virtiofsd@durruti.service
+sudo rm -rf /var/lib/microvms/durruti
 ```
 
-It seems to be necessary to run this as root so that the according tap interface can be created.
-To be able to ping the VM or give Internet Access to the VM your host needs to be setup as described below.
 
 ### Host Setup
+
+#### Network Bridge
 To provide network access to the VMs a bridge interface needs to be created on your host.
 For that:
 - Add the infrastructure flake as input to your hosts flake  
@@ -37,3 +69,13 @@ networking.nat = {
   externalInterface = "eth0"; #change to your interface name
 };
 ```
+#### Auto Deploy VMs
+By default no MicroVMs will be initialized on the host - this should be done using the microvm commandline tool.
+But since we want to always deploy certain VMs it can be configured using the ```malobeo.microvm.deployHosts``` option.
+VMs configured using this option will be initialized and autostarted at boot.
+Updating still needs to be done imperative, or by enabling autoupdates.nix
+
+The following example would init and autostart durruti and gitea:
+``` nix
+malobeo.microvm.deployHosts = [ "durruti" "gitea" ];
+```

doc/src/anleitung/sops.md

@@ -0,0 +1,25 @@
+# Sops
+
+## How to add admin keys
+- Git:
+    - Generate gpg key
+    - Add public key to `./machines/secrets/keys/users/`
+    - Write the fingerprint of the gpg key in `.sops.yaml` under `keys:` in the format `- &admin_$USER $FINGERPRINT`
+
+- Age:
+    - Generate age key for Sops:   
+      ```
+      $ mkdir -p ~/.config/sops/age
+      $ age-keygen -o ~/.config/sops/age/keys.txt
+      ```
+      or to convert an ssh ed25519 key to an age key
+      ```
+      $ mkdir -p ~/.config/sops/age
+      $ nix-shell -p ssh-to-age --run "ssh-to-age -private-key -i ~/.ssh/id_ed25519 > ~/.config/sops/age/keys.txt"
+      ```
+    - Get public key using `$ age-keygen -y ~/.config/sops/age/keys.txt`
+    - Write public key in `.sops.yaml` under `keys:` in the format `- &admin_$USER $PUBKEY`
+
+- Write `- *admin_$USER` under the apropriate `key_grups:` of the secrets the user should have access to
+
+- `cd machines/` and reencrypt existing secrets for the new key with `sops updatekeys $path/to/secrets.yaml`

flake.lock

@@ -1,5 +1,26 @@
 {
   "nodes": {
+    "disko": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1730135292,
+        "narHash": "sha256-CI27qHAbc3/tIe8sb37kiHNaeCqGxNimckCMj0lW5kg=",
+        "owner": "nix-community",
+        "repo": "disko",
+        "rev": "ab58501b2341bc5e0fc88f2f5983a679b075ddf5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "ref": "latest",
+        "repo": "disko",
+        "type": "github"
+      }
+    },
     "ep3-bs": {
       "inputs": {
         "nixpkgs": [
@@ -26,11 +47,11 @@
         "systems": "systems_3"
       },
       "locked": {
-        "lastModified": 1726560853,
+        "lastModified": 1731533236,
-        "narHash": "sha256-X6rJYSESBVr3hBoH0WbKE5KvhPU5bloyZ2L4K60/fPQ=",
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "c1dfcf08411b08f6b8615f7d8971a2bfa81d5e8a",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
         "type": "github"
       },
       "original": {
@@ -46,16 +67,16 @@
         ]
       },
       "locked": {
-        "lastModified": 1726989464,
+        "lastModified": 1733951536,
-        "narHash": "sha256-Vl+WVTJwutXkimwGprnEtXc/s/s8sMuXzqXaspIGlwM=",
+        "narHash": "sha256-Zb5ZCa7Xj+0gy5XVXINTSr71fCfAv+IKtmIXNrykT54=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "2f23fa308a7c067e52dfcc30a0758f47043ec176",
+        "rev": "1318c3f3b068cdcea922fa7c1a0a1f0c96c22f5f",
         "type": "github"
       },
       "original": {
         "owner": "nix-community",
-        "ref": "release-24.05",
+        "ref": "release-24.11",
         "repo": "home-manager",
         "type": "github"
       }
@@ -88,11 +109,11 @@
         "spectrum": "spectrum"
       },
       "locked": {
-        "lastModified": 1731240174,
+        "lastModified": 1734041466,
-        "narHash": "sha256-HYu+bPoV3UILhwc4Ar5iQ7aF+DuQWHXl4mljN6Bwq6A=",
+        "narHash": "sha256-51bhaMe8BZuNAStUHvo07nDO72wmw8PAqkSYH4U31Yo=",
         "owner": "astro",
         "repo": "microvm.nix",
-        "rev": "dd89404e1885b8d7033106f3898eaef8db660cb2",
+        "rev": "3910e65c3d92c82ea41ab295c66df4c0b4f9e7b3",
         "type": "github"
       },
       "original": {
@@ -103,11 +124,11 @@
     },
     "nixlib": {
       "locked": {
-        "lastModified": 1729386149,
+        "lastModified": 1733620091,
-        "narHash": "sha256-hUP9oxmnOmNnKcDOf5Y55HQ+NnoT0+bLWHLQWLLw9Ks=",
+        "narHash": "sha256-5WoMeCkaXqTZwwCNLRzyLxEJn8ISwjx4cNqLgqKwg9s=",
         "owner": "nix-community",
         "repo": "nixpkgs.lib",
-        "rev": "cce4521b6df014e79a7b7afc58c703ed683c916e",
+        "rev": "f4dc9a6c02e5e14d91d158522f69f6ab4194eb5b",
         "type": "github"
       },
       "original": {
@@ -124,11 +145,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1729472750,
+        "lastModified": 1733965598,
-        "narHash": "sha256-s93LPHi5BN7I2xSGNAFWiYb8WRsPvT1LE9ZjZBrpFlg=",
+        "narHash": "sha256-0tlZU8xfQGPcBOdXZee7P3vJLyPjTrXw7WbIgXD34gM=",
         "owner": "nix-community",
         "repo": "nixos-generators",
-        "rev": "7c60ba4bc8d6aa2ba3e5b0f6ceb9fc07bc261565",
+        "rev": "d162ffdf0a30f3d19e67df5091d6744ab8b9229f",
         "type": "github"
       },
       "original": {
@@ -139,11 +160,11 @@
     },
     "nixos-hardware": {
       "locked": {
-        "lastModified": 1730919458,
+        "lastModified": 1733861262,
-        "narHash": "sha256-yMO0T0QJlmT/x4HEyvrCyigGrdYfIXX3e5gWqB64wLg=",
+        "narHash": "sha256-+jjPup/ByS0LEVIrBbt7FnGugJgLeG9oc+ivFASYn2U=",
         "owner": "NixOS",
         "repo": "nixos-hardware",
-        "rev": "e1cc1f6483393634aee94514186d21a4871e78d7",
+        "rev": "cf737e2eba82b603f54f71b10cb8fd09d22ce3f5",
         "type": "github"
       },
       "original": {
@@ -169,29 +190,13 @@
         "type": "github"
       }
     },
-    "nixpkgs-stable": {
-      "locked": {
-        "lastModified": 1730602179,
-        "narHash": "sha256-efgLzQAWSzJuCLiCaQUCDu4NudNlHdg2NzGLX5GYaEY=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "3c2f1c4ca372622cb2f9de8016c9a0b1cbd0f37c",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "release-24.05",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1730785428,
+        "lastModified": 1733759999,
-        "narHash": "sha256-Zwl8YgTVJTEum+L+0zVAWvXAGbWAuXHax3KzuejaDyo=",
+        "narHash": "sha256-463SNPWmz46iLzJKRzO3Q2b0Aurff3U1n0nYItxq7jU=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "4aa36568d413aca0ea84a1684d2d46f55dbabad7",
+        "rev": "a73246e2eef4c6ed172979932bc80e1404ba2d56",
         "type": "github"
       },
       "original": {
@@ -203,22 +208,23 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1730883749,
+        "lastModified": 1733808091,
-        "narHash": "sha256-mwrFF0vElHJP8X3pFCByJR365Q2463ATp2qGIrDUdlE=",
+        "narHash": "sha256-KWwINTQelKOoQgrXftxoqxmKFZb9pLVfnRvK270nkVk=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "dba414932936fde69f0606b4f1d87c5bc0003ede",
+        "rev": "a0f3e10d94359665dba45b71b4227b0aeb851f8e",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-24.05",
+        "ref": "nixos-24.11",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
     "root": {
       "inputs": {
+        "disko": "disko",
         "ep3-bs": "ep3-bs",
         "home-manager": "home-manager",
         "mfsync": "mfsync",
@@ -236,15 +242,14 @@
       "inputs": {
         "nixpkgs": [
           "nixpkgs"
-        ],
+        ]
-        "nixpkgs-stable": "nixpkgs-stable"
       },
       "locked": {
-        "lastModified": 1731047660,
+        "lastModified": 1733965552,
-        "narHash": "sha256-iyp51lPWEQz4c5VH9bVbAuBcFP4crETU2QJYh5V0NYA=",
+        "narHash": "sha256-GZ4YtqkfyTjJFVCub5yAFWsHknG1nS/zfk7MuHht4Fs=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "60e1bce1999f126e3b16ef45f89f72f0c3f8d16f",
+        "rev": "2d73fc6ac4eba4b9a83d3cb8275096fbb7ab4004",
         "type": "github"
       },
       "original": {
@@ -256,11 +261,11 @@
     "spectrum": {
       "flake": false,
       "locked": {
-        "lastModified": 1729945407,
+        "lastModified": 1733308308,
-        "narHash": "sha256-iGNMamNOAnVTETnIVqDWd6fl74J8fLEi1ejdZiNjEtY=",
+        "narHash": "sha256-+RcbMAjSxV1wW5UpS9abIG1lFZC8bITPiFIKNnE7RLs=",
         "ref": "refs/heads/main",
-        "rev": "f1d94ee7029af18637dbd5fdf4749621533693fa",
+        "rev": "80c9e9830d460c944c8f730065f18bb733bc7ee2",
-        "revCount": 764,
+        "revCount": 792,
         "type": "git",
         "url": "https://spectrum-os.org/git/spectrum"
       },
@@ -390,11 +395,11 @@
         "systems": "systems_4"
       },
       "locked": {
-        "lastModified": 1726560853,
+        "lastModified": 1731533236,
-        "narHash": "sha256-X6rJYSESBVr3hBoH0WbKE5KvhPU5bloyZ2L4K60/fPQ=",
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "c1dfcf08411b08f6b8615f7d8971a2bfa81d5e8a",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
         "type": "github"
       },
       "original": {

flake.nix

@@ -3,13 +3,15 @@
 
   inputs = {
     nixos-hardware.url = "github:NixOS/nixos-hardware/master";
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.05";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11";
     nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixos-unstable";
     sops-nix.url = "github:Mic92/sops-nix";
     sops-nix.inputs.nixpkgs.follows = "nixpkgs";
     mfsync.url = "github:k4lipso/mfsync";
     microvm.url = "github:astro/microvm.nix";
     microvm.inputs.nixpkgs.follows = "nixpkgs";
+    disko.url = "github:nix-community/disko/latest";
+    disko.inputs.nixpkgs.follows = "nixpkgs";
 
     utils = {
       url = "github:numtide/flake-utils";
@@ -31,7 +33,7 @@
     };
 
     home-manager=  {
-      url = "github:nix-community/home-manager/release-24.05";
+      url = "github:nix-community/home-manager/release-24.11";
       inputs = {
         nixpkgs.follows = "nixpkgs";
       };

machines/.sops.yaml

@@ -5,6 +5,7 @@
 keys:
   - &admin_kalipso c4639370c41133a738f643a591ddbc4c3387f1fb
   - &admin_kalipso_dsktp aef8d6c7e4761fc297cda833df13aebb1011b5d4
+  - &admin_atlan age1ljpdczmg5ctqyeezn739hv589fwhssjjnuqf7276fqun6kc62v3qmhkd0c
   - &machine_moderatio 3b7027ab1933c4c5e0eb935f8f9b3c058aa6d4c2
   - &machine_lucia 3474196f3adf27cfb70f8f56bcd52d1ed55033db
   - &machine_durruti 4095412245b6efc14cf92ca25911def5a4218567
@@ -15,15 +16,21 @@ creation_rules:
       - *admin_kalipso
       - *admin_kalipso_dsktp
       - *machine_moderatio
+      age:
+      - *admin_atlan
   - path_regex: lucia/secrets.yaml$
     key_groups:
     - pgp:
       - *admin_kalipso
       - *admin_kalipso_dsktp
       - *machine_lucia
+      age:
+      - *admin_atlan
   - path_regex: durruti/secrets.yaml$
     key_groups:
     - pgp:
       - *admin_kalipso
       - *admin_kalipso_dsktp
       - *machine_durruti
+      age:
+      - *admin_atlan

machines/bakunin/configuration.nix

@@ -0,0 +1,83 @@
+{ config, pkgs, ... }:
+
+{
+  imports =
+    [ # Include the results of the hardware scan.
+      #./hardware-configuration.nix
+      ../modules/xserver.nix
+      ../modules/malobeo_user.nix
+      ../modules/sshd.nix
+      ../modules/minimal_tools.nix
+      ../modules/autoupdate.nix
+    ];
+
+  malobeo.autoUpdate = {
+    enable = true;
+    url = "https://hydra.dynamicdiscord.de";
+    project = "malobeo";
+    jobset = "infrastructure";
+    cacheurl = "https://cache.dynamicdiscord.de";
+  };
+
+  boot.loader.systemd-boot.enable = true;
+
+  hardware.sane.enable = true; #scanner support
+
+  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+
+  users.users.malobeo = {
+    packages = with pkgs; [
+      firefox
+      thunderbird
+      telegram-desktop
+      tor-browser-bundle-bin
+      keepassxc
+      libreoffice
+      gimp
+      inkscape
+      okular
+      element-desktop
+      chromium
+      mpv
+      vlc
+      simple-scan
+    ];
+  };
+
+  services.tor = {
+    enable = true;
+    client.enable = true;
+  };
+
+  services.printing.enable = true;
+  services.printing.drivers = [
+    (pkgs.writeTextDir "share/cups/model/brother5350.ppd" (builtins.readFile ../modules/BR5350_2_GPL.ppd))
+    pkgs.gutenprint
+    pkgs.gutenprintBin
+    pkgs.brlaser
+    pkgs.brgenml1lpr 
+    pkgs.brgenml1cupswrapper
+  ];
+
+  # needed for printing drivers
+  nixpkgs.config.allowUnfree = true; 
+
+  services.acpid.enable = true;
+
+  networking.hostName = "bakunin";
+  networking.networkmanager.enable = true;
+
+  security.rtkit.enable = true;
+  services.pipewire = {
+    enable = true;
+    alsa.enable = true;
+    alsa.support32Bit = true;
+    pulse.enable = true;
+    systemWide = true;
+  };
+
+
+  time.timeZone = "Europe/Berlin";
+  system.stateVersion = "23.05"; # Do.. Not.. Change..
+}
+

machines/bakunin/hardware-configuration.nix

@@ -0,0 +1,49 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "usb_storage" "sd_mod" "rtsx_pci_sdmmc" ];
+  boot.initrd.kernelModules = [ "dm-snapshot" ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+boot.initrd.luks.devices = {
+root = {
+device = "/dev/disk/by-uuid/35ae4fa2-1076-42ae-a04c-1752126b2aaf";
+preLVM = true;
+allowDiscards = true;
+};
+};
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/fe34ee57-9397-4311-94f2-a4fc0a3ef09c";
+      fsType = "btrfs";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/402B-2026";
+      fsType = "vfat";
+    };
+
+  swapDevices =
+    [ { device = "/dev/disk/by-uuid/b4a28946-dcc4-437d-a1b9-08d36f4b6b27"; }
+    ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.enp0s31f6.useDHCP = lib.mkDefault true;
+  # networking.interfaces.wlp4s0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

machines/configuration.nix

@@ -45,7 +45,32 @@ let
     inputs.microvm.nixosModules.microvm
     {
       microvm = {
-        hypervisor = "qemu";
+        hypervisor = "cloud-hypervisor";
+        mem = 2560;
+        shares = [
+          {
+            source = "/nix/store";
+            mountPoint = "/nix/.ro-store";
+            tag = "store";
+            proto = "virtiofs";
+            socket = "store.socket";
+          }
+          {
+            source = "/var/lib/microvms/${hostName}/etc";
+            mountPoint = "/etc";
+            tag = "etc";
+            proto = "virtiofs";
+            socket = "etc.socket";
+          }
+          {
+            source = "/var/lib/microvms/${hostName}/var";
+            mountPoint = "/var";
+            tag = "var";
+            proto = "virtiofs";
+            socket = "var.socket";
+          }
+        ];
+
         interfaces = [
           {
             type = "tap";
@@ -78,9 +103,31 @@ in
     ];
   };
 
+  bakunin = nixosSystem {
+    system = "x86_64-linux";
+    specialArgs.inputs = inputs;
+    modules = defaultModules ++ [
+      ./bakunin/configuration.nix
+      inputs.disko.nixosModules.disko
+      ./modules/disko/btrfs-laptop.nix
+    ];
+  };
+
+  fanny = nixosSystem {
+    system = "x86_64-linux";
+    specialArgs.inputs = inputs;
+    modules = defaultModules ++ [
+      ./fanny/configuration.nix
+      inputs.disko.nixosModules.disko
+      ./modules/disko/fanny.nix
+    ];
+  };
+
+
   durruti = nixosSystem {
     system = "x86_64-linux";
     specialArgs.inputs = inputs;
+    specialArgs.self = self;
     modules = makeMicroVM "durruti" "10.0.0.5" [
       ./durruti/configuration.nix
     ];
@@ -94,12 +141,4 @@ in
       ./lucia/hardware_configuration.nix
     ];
   };
-
-  gitea = nixosSystem {
-    system = "x86_64-linux";
-    specialArgs.inputs = inputs;
-    modules = makeMicroVM "gitea" "10.0.0.6" [
-      ./gitea/configuration.nix
-    ];
-  };
 }

machines/durruti/configuration.nix

@@ -22,55 +22,16 @@ with lib;
   imports = [
     inputs.ep3-bs.nixosModules.ep3-bs
     inputs.tasklist.nixosModules.malobeo-tasklist
+
+    ./documentation.nix
+
     ../modules/malobeo_user.nix
     ../modules/sshd.nix
     ../modules/minimal_tools.nix
-    ../modules/autoupdate.nix
   ];
 
-  malobeo.autoUpdate = {
-    enable = true;
-    url = "https://hydra.dynamicdiscord.de";
-    project = "malobeo";
-    jobset = "infrastructure";
-    cacheurl = "https://cache.dynamicdiscord.de";
-  };
-
   services.malobeo-tasklist.enable = true;
 
-  services.ep3-bs = {
-    enable = true;
-    in_production = true;
-    favicon = ./circle-a.png;
-    logo = ./malobeo.png;
-
-    mail = {
-      type = "smtp-tls";
-      address = "dynamicdiscorddresden@systemli.org";
-      host = "mail.systemli.org";
-      user = "dynamicdiscorddresden@systemli.org";
-      passwordFile = config.sops.secrets.ep3bsMail.path;
-      auth = "plain";
-    };
-
-
-    database = {
-      user = "malodbuser";
-      passwordFile = config.sops.secrets.ep3bsDb.path;
-    };
-  };
-
-  sops.secrets.ep3bsDb = {
-    owner = config.services.ep3-bs.user;
-    key = "ep3bsDb";
-  };
-
-  sops.secrets.ep3bsMail = {
-    owner = config.services.ep3-bs.user;
-    key = "ep3bsMail";
-  };
-
-
   system.stateVersion = "22.11"; # Did you read the comment?
 }
 

machines/durruti/documentation.nix

@@ -0,0 +1,15 @@
+{ config, self, ... }:
+
+{
+  services.nginx = {
+    enable = true;
+    virtualHosts."_" = {
+      listen = [ 
+        { addr = "0.0.0.0"; port = 9000; } 
+      ];
+      root = "${self.packages.x86_64-linux.docs}/share/doc";
+    };
+  };
+
+  networking.firewall.allowedTCPPorts = [ 9000 ];
+}

machines/durruti/host_config.nix

@@ -33,6 +33,12 @@ in
       }
     ];
 
+    services.nginx.virtualHosts."docs.malobeo.org" = {
+      forceSSL = true;
+      enableACME= true;
+      locations."/".proxyPass = "http://${cfg.host_ip}:9000";
+    };
+
     services.nginx.virtualHosts."tasklist.malobeo.org" = {
       forceSSL = true;
       enableACME= true;

machines/durruti/secrets.yaml

@@ -6,66 +6,75 @@ sops:
     gcp_kms: []
     azure_kv: []
     hc_vault: []
-    age: []
+    age:
+        - recipient: age1ljpdczmg5ctqyeezn739hv589fwhssjjnuqf7276fqun6kc62v3qmhkd0c
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBkOTV0VC92aGo0ZFU1RE84
+            LzJxWUh0MzYrSWJZYldVMTdsMlJ6RkI2WURNCmFVT1ZtMitOSzYySW1RMkE5aDUw
+            bEI2Z3ZhbUdaM2R5eVpkYVlrZks3dW8KLS0tIHFEdWZ2UmREeFl2Q0d0c0lVTGxm
+            SnZxRUcyaUY0QnRtVmdnYW9acmxTWmMKfLb2wgBcQC0Ay34wBvTenZW1jVvDH7aV
+            45+5NzmkhIQRNkKWgRfpT9EQ9cRJz3l7ZYoVgJe8qBhwH64lBqUiqw==
+            -----END AGE ENCRYPTED FILE-----
     lastmodified: "2024-06-26T10:07:26Z"
     mac: ENC[AES256_GCM,data:TfN80Hffm+Lf/5Cz7T37bBxMgJCAnk2aBxxW1/lr89N2p3cckcSOGAKoLWNIsdOkqOjAs4kft0nQ+xyfdLehG1WPo6OlOwZhJexfUUcS7GJ0QGNEVntkehQiHGw9TIv08/WHRbjnKTOGHLn1vuJAIJmSyff0hncGR7nxcwghZUU=,iv:TfidjsiqDx4SCbtb6ksNYOSz/EwzwnYieeWOaBrvA7Y=,tag:e8Vaycv9bxrVBn2QjRyfSw==,type:str]
     pgp:
-        - created_at: "2024-06-26T10:06:21Z"
+        - created_at: "2024-11-14T13:03:00Z"
           enc: |-
             -----BEGIN PGP MESSAGE-----
 
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           fp: c4639370c41133a738f643a591ddbc4c3387f1fb
-        - created_at: "2024-06-26T10:06:21Z"
+        - created_at: "2024-11-14T13:03:00Z"
           enc: |-
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     unencrypted_suffix: _unencrypted

machines/fanny/configuration.nix

@@ -0,0 +1,44 @@
+{ config, pkgs, ... }:
+
+{
+  imports =
+    [ # Include the results of the hardware scan.
+      #./hardware-configuration.nix
+      ../modules/malobeo_user.nix
+      ../modules/sshd.nix
+      ../modules/minimal_tools.nix
+      ../modules/autoupdate.nix
+    ];
+
+  malobeo.autoUpdate = {
+    enable = true;
+    url = "https://hydra.dynamicdiscord.de";
+    project = "malobeo";
+    jobset = "infrastructure";
+    cacheurl = "https://cache.dynamicdiscord.de";
+  };
+
+  boot.loader.systemd-boot.enable = true;
+
+  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+
+  services.tor = {
+    enable = true;
+    client.enable = true;
+  };
+
+  # needed for printing drivers
+  nixpkgs.config.allowUnfree = true; 
+
+  services.acpid.enable = true;
+
+  networking.hostName = "fanny";
+  networking.hostId = "1312acab";
+  networking.networkmanager.enable = true;
+
+  virtualisation.vmVariant.virtualisation.graphics = false;
+
+  time.timeZone = "Europe/Berlin";
+  system.stateVersion = "23.05"; # Do.. Not.. Change..
+}
+

machines/fanny/hardware-configuration.nix

@@ -0,0 +1,49 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "usb_storage" "sd_mod" "rtsx_pci_sdmmc" ];
+  boot.initrd.kernelModules = [ "dm-snapshot" ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+boot.initrd.luks.devices = {
+root = {
+device = "/dev/disk/by-uuid/35ae4fa2-1076-42ae-a04c-1752126b2aaf";
+preLVM = true;
+allowDiscards = true;
+};
+};
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/fe34ee57-9397-4311-94f2-a4fc0a3ef09c";
+      fsType = "btrfs";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/402B-2026";
+      fsType = "vfat";
+    };
+
+  swapDevices =
+    [ { device = "/dev/disk/by-uuid/b4a28946-dcc4-437d-a1b9-08d36f4b6b27"; }
+    ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.enp0s31f6.useDHCP = lib.mkDefault true;
+  # networking.interfaces.wlp4s0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

machines/gitea/configuration.nix

@@ -1,37 +0,0 @@
-{ config, lib, pkgs, inputs, ... }:
-
-with lib;
-
-{
-  #sops.defaultSopsFile = ./secrets.yaml;
-
-  networking = {
-    hostName = mkDefault "gitea";
-    useDHCP = false;
-    nameservers = [ "1.1.1.1" ];
-  };
-
-  imports = [
-    ../modules/malobeo_user.nix
-    ../modules/sshd.nix
-    ../modules/minimal_tools.nix
-    ../modules/autoupdate.nix
-  ];
-
-  services.gitea = {
-    enable = true;
-    appName = "malobeo git instance";
-
-    settings.server = {
-      DOMAIN = "git.malobeo.org";
-      HTTP_PORT = 3001;
-      SSH_PORT = 22;
-      ROOT_URL = "https://git.malobeo.org/";
-    };
-  };
-
-  networking.firewall.allowedTCPPorts = [ 3001 ];
-
-  system.stateVersion = "22.11"; # Did you read the comment?
-}
-

machines/louise/configuration.nix

@@ -67,17 +67,13 @@
   networking.hostName = "louise";
   networking.networkmanager.enable = true;
 
-  sound.enable = true;
+  security.rtkit.enable = true;
-  hardware.pulseaudio = {
+  services.pipewire = {
-    enable = true;
-    zeroconf.discovery.enable = true;
-    extraConfig = ''
-      load-module module-zeroconf-discover
-    '';
-  };
-
-  services.avahi = {
     enable = true;
+    alsa.enable = true;
+    alsa.support32Bit = true;
+    pulse.enable = true;
+    systemWide = true;
   };
 
 

machines/lucia/configuration.nix

@@ -20,14 +20,6 @@ in
 
   # Use the extlinux boot loader. (NixOS wants to enable GRUB by default)
   boot.loader.grub.enable = false;
-  boot.loader.raspberryPi.enable = false;
-  boot.loader.raspberryPi.version = 3;
-  boot.loader.raspberryPi.uboot.enable = true;
-  boot.loader.raspberryPi.firmwareConfig = ''
-    dtparam=audio=on
-    hdmi_ignore_edid_audio=1
-    audio_pwm_mode=2
-  '';
 
   # Enables the generation of /boot/extlinux/extlinux.conf
   boot.loader.generic-extlinux-compatible.enable = true;
@@ -39,12 +31,8 @@ in
   # Set your time zone.
   time.timeZone = "Europe/Berlin";
 
-  # hardware audio support:
-  sound.enable = true;
-
   services = {
 
-
   dokuwiki.sites."wiki.malobeo.org" = {
     enable = true;
     #acl = "* @ALL 8";  # everyone can edit using this config

machines/lucia/secrets.yaml

@@ -5,66 +5,75 @@ sops:
     gcp_kms: []
     azure_kv: []
     hc_vault: []
-    age: []
+    age:
+        - recipient: age1ljpdczmg5ctqyeezn739hv589fwhssjjnuqf7276fqun6kc62v3qmhkd0c
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBGaVZQT1U3cXp4NHVSb2lh
+            RWRUcjlGY1RtNVNFT3dMSWFaZHJGcC8ybzFFClhhT2RPRHZwbWNSQzdSay8wc0h5
+            NHVUN082U0lhcWF2MnNTaXQ2Q0trRk0KLS0tIHJrNmdEdUI5YVRqck8vejRrVHZ4
+            aVFGZjk4UjVJa3FoMDJiaXR2MmdiQ2cKSVgIdxPBNTbNFQbdI5ECNGQrDUK9dQI3
+            f3mHj+XAPmEtjUXLyxUI1gQ+8toctnU6cgJ+HdGLX01lgTHwz7uieQ==
+            -----END AGE ENCRYPTED FILE-----
     lastmodified: "2023-10-24T15:09:51Z"
     mac: ENC[AES256_GCM,data:f/wf0EuNmy+ic/k+fHg3IJ8p4I8BftFn6QwGJsXJgTBDspe7Plnwh+kGEqdPg8OEbWy/1niRfCXJa/vKoquWsxL7LUP2lGYT7lj7QYuj2F8fo2WIe2qhCikuxO6Q1asKyBcebYv5KAY/yQlVBYs9X9tcU6Fu4IU2AmJhjYB6m3s=,iv:K3DCEV4/FocdnEulNM9snH4uym8pAZRSmsYbM+rghe4=,tag:429oJE1du0IRl4aDuLzoZA==,type:str]
     pgp:
-        - created_at: "2023-10-24T14:42:18Z"
+        - created_at: "2024-11-14T13:02:46Z"
-          enc: |
+          enc: |-
             -----BEGIN PGP MESSAGE-----
 
-            hQGMA5HdvEwzh/H7AQwAqFy6FthlG4of1IYE42baCy6AHhnCxTKN5i0/ZYXtxz/T
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-            xWTAKEXPlbhT4AMGdIvIbEf7od4Pr7xxrxERkHVn1rkHxqjF+bjFw9J2xRXJvilw
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-            WxGMHNWqN7NS
+            qkz9uKEGrGjb
-            =XZkW
+            =wPkW
             -----END PGP MESSAGE-----
           fp: c4639370c41133a738f643a591ddbc4c3387f1fb
-        - created_at: "2023-10-24T14:42:18Z"
+        - created_at: "2024-11-14T13:02:46Z"
-          enc: |
+          enc: |-
             -----BEGIN PGP MESSAGE-----
 
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-            =2A7P
+            =DC78
             -----END PGP MESSAGE-----
           fp: aef8d6c7e4761fc297cda833df13aebb1011b5d4
-        - created_at: "2023-10-24T14:42:18Z"
+        - created_at: "2024-11-14T13:02:46Z"
-          enc: |
+          enc: |-
             -----BEGIN PGP MESSAGE-----
 
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-            =NnkE
+            =8HBK
             -----END PGP MESSAGE-----
           fp: 3474196f3adf27cfb70f8f56bcd52d1ed55033db
     unencrypted_suffix: _unencrypted

machines/modules/disko/btrfs-laptop.nix

@@ -0,0 +1,63 @@
+{ config, self, inputs, ... }:
+
+{
+  imports = [
+    inputs.disko.nixosModules.disko
+  ];
+
+  # https://github.com/nix-community/disko/blob/master/example/luks-btrfs-subvolumes.nix
+  disko.devices = {
+    disk = {
+      main = {
+        type = "disk";
+        # When using disko-install, we will overwrite this value from the commandline
+        device = "/dev/disk/by-id/some-disk-id";
+        content = {
+          type = "gpt";
+          partitions = {
+            ESP = {
+              size = "512M";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+                mountOptions = [ "umask=0077" ];
+              };
+            };
+            luks = {
+              size = "100%";
+              content = {
+                type = "luks";
+                name = "crypted";
+                passwordFile = /tmp/secret.key; # Interactive
+                content = {
+                  type = "btrfs";
+                  extraArgs = [ "-f" ];
+                  subvolumes = {
+                    "/root" = {
+                      mountpoint = "/";
+                      mountOptions = [ "compress=zstd" "noatime" ];
+                    };
+                    "/home" = {
+                      mountpoint = "/home";
+                      mountOptions = [ "compress=zstd" "noatime" ];
+                    };
+                    "/nix" = {
+                      mountpoint = "/nix";
+                      mountOptions = [ "compress=zstd" "noatime" ];
+                    };
+                    "/swap" = {
+                      mountpoint = "/.swapvol";
+                      swap.swapfile.size = "20M";
+                    };
+                  };
+                };
+              };
+            };
+          };
+        };
+      };
+    };
+  };
+}

machines/modules/disko/fanny.nix

@@ -0,0 +1,141 @@
+{
+  disko.devices = {
+    disk = {
+      ssd = {
+        type = "disk";
+        device = "/dev/sda";
+        content = {
+          type = "gpt";
+          partitions = {
+            ESP = {
+              size = "1024M";
+              type = "EF00";
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+                mountOptions = [ "umask=0077" ];
+              };
+            };
+            zfs = {
+              size = "100%";
+              content = {
+                type = "zfs";
+                pool = "zroot";
+              };
+            };
+          };
+        };
+      };
+
+      hdd0 = {
+        type = "disk";
+        device = "/dev/sdb";
+        content = {
+          type = "gpt";
+          partitions = {
+            zfs = {
+              size = "100%";
+              content = {
+                type = "zfs";
+                pool = "storage";
+              };
+            };
+          };
+        };
+      };
+
+      hdd1 = {
+        type = "disk";
+        device = "/dev/sdc";
+        content = {
+          type = "gpt";
+          partitions = {
+            zfs = {
+              size = "100%";
+              content = {
+                type = "zfs";
+                pool = "storage";
+              };
+            };
+          };
+        };
+      };
+    };
+
+    zpool = {
+      zroot = {
+        type = "zpool";
+        mode = "";
+        # Workaround: cannot import 'zroot': I/O error in disko tests
+        options.cachefile = "none";
+        rootFsOptions = {
+          compression = "zstd";
+          "com.sun:auto-snapshot" = "false";
+        };
+
+        datasets = {
+          encrypted = {
+            type = "zfs_fs";
+            options = {
+              mountpoint = "none";
+              encryption = "aes-256-gcm";
+              keyformat = "passphrase";
+              keylocation = "file:///tmp/root.key";
+            };
+            # use this to read the key during boot
+            postCreateHook = ''
+              zfs set keylocation="prompt" "zroot/$name";
+            '';
+          };
+          "encrypted/root" = {
+            type = "zfs_fs";
+            mountpoint = "/";
+          };
+          "encrypted/var" = {
+            type = "zfs_fs";
+            mountpoint = "/var";
+          };
+          "encrypted/etc" = {
+            type = "zfs_fs";
+            mountpoint = "/etc";
+          };
+          "encrypted/home" = {
+            type = "zfs_fs";
+            mountpoint = "/home";
+          };
+          "encrypted/nix" = {
+            type = "zfs_fs";
+            mountpoint = "/nix";
+          };
+        };
+      };
+
+      storage = {
+        type = "zpool";
+        mode = "mirror";
+
+        datasets = {
+          encrypted = {
+            type = "zfs_fs";
+            options = {
+              mountpoint = "none";
+              encryption = "aes-256-gcm";
+              keyformat = "passphrase";
+              keylocation = "file:///tmp/storage.key";
+            };
+
+            # use this to read the key during boot
+            postCreateHook = ''
+              zfs set keylocation="prompt" "zroot/$name";
+            '';
+          };
+          "encrypted/data" = {
+            type = "zfs_fs";
+            mountpoint = "/data";
+          };
+        };
+      };
+    };
+  };
+}

machines/modules/malobeo/microvm_host.nix

@@ -1,4 +1,4 @@
-{ config, lib, options, pkgs, ... }:
+{ config, self, lib, inputs, options, pkgs, ... }:
 
 with lib;
 
@@ -13,12 +13,39 @@ in
         type = types.bool;
         description = lib.mdDoc "Setup bridge device for microvms.";
       };
+
+      enableHostBridgeUnstable = mkOption {
+        default = false;
+        type = types.bool;
+        description = lib.mdDoc "Setup bridge device for microvms.";
+      };
+
+      deployHosts = mkOption {
+        default = [];
+        type = types.listOf types.str;
+        description = ''
+          List hostnames of MicroVMs that should be automatically initializes and autostart
+        '';
+      };
     };
   };
 
-  config = mkIf cfg.enableHostBridge
+
-  { 
+  imports = [
-    systemd.network = {
+    inputs.microvm.nixosModules.host
+  ];
+
+  config = { 
+    assertions = [
+      {
+        assertion = !(cfg.enableHostBridgeUnstable && cfg.enableHostBridge);
+        message = ''
+          Only enableHostBridge or enableHostBridgeUnstable! Not Both!
+        '';
+      }
+    ];
+
+    systemd.network = mkIf (cfg.enableHostBridge || cfg.enableHostBridgeUnstable) {
       enable = true;
       # create a bride device that all the microvms will be connected to
       netdevs."10-microvm".netdevConfig = {
@@ -32,14 +59,11 @@ in
           DHCPServer = true;
           IPv6SendRA = true;
         };
-        addresses = [ {
+        addresses = if cfg.enableHostBridgeUnstable then [
-          Address = "10.0.0.1/24";
+          { Address = "10.0.0.1/24"; }
-        } {
+        ] else [
-          Address = "fd12:3456:789a::1/64";
+          { addressConfig.Address = "10.0.0.1/24"; }
-        } ];
+        ];
-        ipv6Prefixes = [ {
-          Prefix = "fd12:3456:789a::/64";
-        } ];
       };
 
       # connect the vms to the bridge
@@ -48,5 +72,48 @@ in
         networkConfig.Bridge = "microvm";
       };
     }; 
+
+    microvm.vms = 
+    let
+      # Map the values to each hostname to then generate an Attrset using listToAttrs
+      mapperFunc = name: { inherit name; value = {
+          # Host build-time reference to where the MicroVM NixOS is defined
+          # under nixosConfigurations
+          flake = inputs.malobeo; 
+          # Specify from where to let `microvm -u` update later on
+          updateFlake = "git+https://git.dynamicdiscord.de/kalipso/infrastructure";
+        }; };
+    in
+    builtins.listToAttrs (map mapperFunc cfg.deployHosts);
+
+    systemd.services = builtins.foldl' (services: name: services // {
+      "microvm-update@${name}" = {
+        description = "Update MicroVMs automatically";
+        after = [ "network-online.target" ];
+        wants = [ "network-online.target" ];
+        unitConfig.ConditionPathExists = "/var/lib/microvms/${name}";
+        serviceConfig = {
+          LimitNOFILE = "1048576";
+          Type = "oneshot";
+        };
+        path = with pkgs; [ nix git ];
+        environment.HOME = config.users.users.root.home;
+        script = ''
+          /run/current-system/sw/bin/microvm -Ru ${name}
+        '';
+      };
+    }) {} (cfg.deployHosts);
+
+    systemd.timers = builtins.foldl' (timers: name: timers // {
+    "microvm-update-${name}" = {
+      wantedBy = [ "timers.target" ];
+      timerConfig = {
+        Unit = "microvm-update@${name}.service";
+        # three times per hour
+        OnCalendar = "*:0,20,40:00";
+        Persistent = true;
+      };
+    };
+  }) {} (cfg.deployHosts);
   };
 }

machines/ssh_keys.nix

@@ -3,5 +3,6 @@
    "ssh-rsa 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 kalipso@c3d2.de"
    "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAACAQCxgcjNOYbza3+RfANFDXy7HXNRFlkpDOAcGyB7MKshiVlbPByWRSjfZa0BeRNjpeCd8QkIodKUzqYOCOrc8ad3kiNbdLRcDz57A5xSLD3ynakoWJo0AmJjT3Ta1JJj8inNwwykR0ig5//SrtsZb9HkWJDAF017MokM2r8AWPE1QzcQdh93kojXcgTHrJHzEqgKbEGDEk37f1RvZG4umEFeqdK2FvS5isPa7P9X7hyyoDC8bvEy7xfaDrToJAoXon6r79taxH8UWIvy//xsU0NBLYK2eE4RQe2AjF6Ri+CybI6y1SsHOvyh4nNKWlfUOEL6UnIulRn/LXFOKCJi7xuoTeJXS0+w1DNEuiGosVNXPSKbUm/eDBVnb8Iyep9wmygSZayN82xL5lRlG3Mn45ttecqfm2SJkmduBA5qXcTdDPe/lXTZaVO9tbiIcJfUgd3ttEu2+6YjLn74D965PlovzvR6EhbVUZ8IkOAt4VmuTkXIdm8SCS7jzhsiKeUXoZ4rfa375zi79SIPuIkoMasj6d16wcYOeFIUIMFFccfQ9jQjr9NTSXC2dd7sfbI9I9mF7eRQSsUdSwpP8WH1b+M1MxTbdhEUdPwpOLviTTIuk8E8K8DQDZIcOOh38mCDpyoh02nwfRxlyoYVsKAHIQH02dHTvYEa3/pMsRwGc9W1Ow== kalipso@desktop"
    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINQg6a2EGmq+i9lfwU+SRMQ8MGN3is3VS6janzl9qOHo quaseb67@hzdr.de"
+   "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICKaEcGaSKU0xC5qCwzj2oCLLG4PYjWHZ7/CXHw4urVk atlan@nixos"
  ];
 }

outputs.nix

@@ -4,6 +4,7 @@
 , nixpkgs-unstable
 , nixos-generators
 , sops-nix
+, microvm
 , ...
 } @inputs:
 
@@ -15,8 +16,27 @@ in (utils.lib.eachSystem (builtins.filter filter_system utils.lib.defaultSystems
     pkgs = nixpkgs.legacyPackages."${system}";
   in
   {
-    devShells.default = pkgs.callPackage ./shell.nix {
+    devShells.default =
-      inherit (sops-nix.packages."${pkgs.system}") sops-import-keys-hook ssh-to-pgp sops-init-gpg-key;
+    let
+      sops = sops-nix.packages."${pkgs.system}";
+      microvmpkg = microvm.packages."${pkgs.system}";
+    in
+    pkgs.mkShell {
+      sopsPGPKeyDirs = [
+        "./machines/secrets/keys/hosts"
+        "./machines/secrets/keys/users"
+      ];
+    
+      nativeBuildInputs = [
+        sops.ssh-to-pgp
+        sops.sops-import-keys-hook
+        sops.sops-init-gpg-key
+        pkgs.sops
+        pkgs.age
+        pkgs.python310Packages.grip
+        pkgs.mdbook
+        microvmpkg.microvm
+      ];
     };
 
     packages = {
@@ -36,7 +56,46 @@ in (utils.lib.eachSystem (builtins.filter filter_system utils.lib.defaultSystems
           cp -r ./book/* $dest
         '';
       };
-    };
+    } //
+
+    builtins.foldl'
+    (result: host:
+      let
+        inherit (self.nixosConfigurations.${host}) config;
+      in
+      result // {
+        # boot any machine in a microvm
+        "${host}-vm" = (self.nixosConfigurations.${host}.extendModules {
+          modules = [{
+            microvm = {
+              mem = pkgs.lib.mkForce 4096;
+              hypervisor = pkgs.lib.mkForce "qemu";
+              socket = pkgs.lib.mkForce null;
+              shares = pkgs.lib.mkForce [{
+                tag = "ro-store";
+                source = "/nix/store";
+                mountPoint = "/nix/.ro-store";
+              }];
+              interfaces = pkgs.lib.mkForce [{
+                type = "user";
+                id = "eth0";
+                mac = "02:23:de:ad:be:ef";
+              }];
+            };
+            boot.isContainer = pkgs.lib.mkForce false;
+            users.users.root.password = "";
+            fileSystems."/".fsType = pkgs.lib.mkForce "tmpfs";
+            services.getty.helpLine = ''
+              Log in as "root" with an empty password.
+              Use "reboot" to shut qemu down.
+            '';
+          }] ++ pkgs.lib.optionals (! config ? microvm) [
+            microvm.nixosModules.microvm
+          ];
+        }).config.microvm.declaredRunner;
+    })
+    { }
+    (builtins.attrNames self.nixosConfigurations);
 
     apps = {
       docs = {
@@ -50,6 +109,7 @@ in (utils.lib.eachSystem (builtins.filter filter_system utils.lib.defaultSystems
   })) // rec {
     nixosConfigurations = import ./machines/configuration.nix (inputs // {
       inherit inputs;
+      self = self;
     });
 
     nixosModules.malobeo.imports = [

shell.nix

@@ -1,23 +0,0 @@
-{ mkShell
-, sops-import-keys-hook
-, ssh-to-pgp
-, sops-init-gpg-key
-, sops
-, pkgs
-}:
-
-mkShell {
-  sopsPGPKeyDirs = [
-    "./machines/secrets/keys/hosts"
-    "./machines/secrets/keys/users"
-  ];
-
-  nativeBuildInputs = [
-    ssh-to-pgp
-    sops-import-keys-hook
-    sops-init-gpg-key
-    sops
-    pkgs.python310Packages.grip
-    pkgs.mdbook
-  ];
-}