Add VM for the front-end (#183)

For now, I created yet another deployment. Basically, this seems to tell me that we only ever use:

- one deployment per machine (when we change its configuration)
- one big deployment for all of them (eg. for nixpkgs updates or new contributor)

but that the current split into themes doesn't really work. I can discontinue it in another PR.

`fedi201` is accessible under `fedi201.abundos.eu`. Its configuration lives in `infra/fedi201/default.nix`. This Nix file is a NixOps4 resource module, not a NixOS configuration module; you probably want to add a `nixos.module` field to it where you put your NixOS configuration.

Reviewed-on: Fediversity/Fediversity#183
Reviewed-by: kiara Grouwstra <kiara@procolix.eu>
Co-authored-by: Nicolas “Niols” Jeannerod <nicolas.jeannerod@moduscreate.com>
Co-committed-by: Nicolas “Niols” Jeannerod <nicolas.jeannerod@moduscreate.com>

infra/README.md

@@ -127,4 +127,5 @@ They host our stable infrastructure.
   vm02186   Procolix      *unused*                 `other`
   vm02187   Procolix      Wiki                     `web`
   fedi200   Fediversity   Testing machine for Hans `hans`
+  fedi201   Fediversity   FediPanel                `kiara`
   fedi300   Fediversity   Forgejo actions runner   `git`

infra/fedi201/default.nix

@@ -0,0 +1,13 @@
+{
+  fediversityVm = {
+    domain = "abundos.eu";
+    ipv4 = {
+      address = "95.215.187.201";
+      gateway = "95.215.187.1";
+    };
+    ipv6 = {
+      address = "2a00:51c0:13:1305::201";
+      gateway = "2a00:51c0:13:1305::1";
+    };
+  };
+}

infra/flake-part.nix

@@ -86,6 +86,9 @@ let
     hans = [
       "fedi200"
     ];
+    kiara = [
+      "fedi201"
+    ];
   };
 
 in

keys/systems/fedi201.pub

@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILhSlUo7L/TjoAILfLv/BDxlBT+rGudh9VoK50Uiu2lZ root@fedi201