From 31e11cdfcb4455f51c8db27958d6ae8db8820401 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Isma=C3=ABl=20Bouya?= <ismael.bouya@normalesup.org>
Date: Sun, 7 Jun 2020 19:10:43 +0200
Subject: [PATCH] Prepare migration to ZFS

---
 modules/private/system.nix         | 7 +++++++
 modules/private/system/dilion.nix  | 2 ++
 modules/private/system/eldiron.nix | 2 ++
 3 files changed, 11 insertions(+)

diff --git a/modules/private/system.nix b/modules/private/system.nix
index 9161738..0ab4a81 100644
--- a/modules/private/system.nix
+++ b/modules/private/system.nix
@@ -76,5 +76,12 @@
       pkgs.vim
     ] ++
     (lib.optional (builtins.length (config.hostEnv.users pkgs) > 0) pkgs.home-manager);
+
+    systemd.targets.maintenance = {
+      description = "Maintenance target with only sshd";
+      after = [ "network-online.target" "sshd.service" ];
+      requires = [ "network-online.target" "sshd.service" ];
+      unitConfig.AllowIsolate = "yes";
+    };
   };
 }
diff --git a/modules/private/system/dilion.nix b/modules/private/system/dilion.nix
index d8bad6b..977d427 100644
--- a/modules/private/system/dilion.nix
+++ b/modules/private/system/dilion.nix
@@ -1,10 +1,12 @@
 { privateFiles }:
 { config, pkgs, name, ... }:
 {
+  boot.supportedFilesystems = [ "zfs" ];
   boot.kernelPackages = pkgs.linuxPackages_latest;
   myEnv = import "${privateFiles}/environment.nix" // { inherit privateFiles; };
 
   networking = {
+    hostId = "27c3048d"; # generated with head -c4 /dev/urandom | od -A none -t x4
     firewall.enable = false;
     interfaces."eth0".ipv4.addresses = pkgs.lib.attrsets.mapAttrsToList
       (n: ips: { address = ips.ip4; prefixLength = 32; })
diff --git a/modules/private/system/eldiron.nix b/modules/private/system/eldiron.nix
index 6ccaea5..b3bda53 100644
--- a/modules/private/system/eldiron.nix
+++ b/modules/private/system/eldiron.nix
@@ -1,10 +1,12 @@
 { privateFiles }:
 { config, pkgs, ... }:
 {
+  boot.supportedFilesystems = [ "zfs" ];
   boot.kernelPackages = pkgs.linuxPackages_latest;
   myEnv = import "${privateFiles}/environment.nix" // { inherit privateFiles; };
 
   networking = {
+    hostId = "8262ca33"; # generated with head -c4 /dev/urandom | od -A none -t x4
     firewall.enable = true;
     # 176.9.151.89 declared in nixops -> infra / tools
     interfaces."eth0".ipv4.addresses = pkgs.lib.attrsets.mapAttrsToList
-- 
2.41.0