From 4b8a678873e40a648cceb8ddca4900bcd3d1576f Mon Sep 17 00:00:00 2001
From: clerie <git@clerie.de>
Date: Sun, 16 Apr 2023 16:17:13 +0200
Subject: [PATCH] hosts/hydra-*: enable ARM build on hydra

---
 hosts/hydra-1/configuration.nix | 31 ++++++++++++++++++++++++++++++-
 hosts/hydra-2/configuration.nix |  6 ++++++
 2 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/hosts/hydra-1/configuration.nix b/hosts/hydra-1/configuration.nix
index 379b42c..568a400 100644
--- a/hosts/hydra-1/configuration.nix
+++ b/hosts/hydra-1/configuration.nix
@@ -10,6 +10,12 @@
   boot.loader.grub.enable = true;
   boot.loader.grub.version = 2;
   boot.loader.grub.device = "/dev/vda";
+  
+  boot.binfmt.emulatedSystems = [
+    "armv6l-linux"
+    "armv7l-linux"
+    "aarch64-linux"
+  ];
 
   networking.hostName = "hydra-1";
 
@@ -24,18 +30,41 @@
     settings.allowed-uris = "http:// https://";
     distributedBuilds = true;
     buildMachines = [
+      {
+        hostName = "hydra-1.net.clerie.de";
+        sshUser = "root";
+        systems = [
+          "x86_64-linux"
+          "armv6l-linux"
+          "armv7l-linux"
+          "aarch64-linux"
+        ];
+        sshKey = "/var/lib/hydra/id_ed25519";
+        publicHostKey = "c3NoLWVkMjU1MTkgQUFBQUMzTnphQzFsWkRJMU5URTVBQUFBSUUyeFFCQ3NGQkN3TDluNE9QL2JQbmd0Tk8xZnk5a1B3MTNaL05Eb2JhMTYgcm9vdEBoeWRyYS0xCg==";
+
+      }
       {
         hostName = "hydra-2.net.clerie.de";
         sshUser = "root";
-        system = "x86_64-linux";
+        systems = [
+          "x86_64-linux"
+          "armv6l-linux"
+          "armv7l-linux"
+          "aarch64-linux"
+        ];
         sshKey = "/var/lib/hydra/id_ed25519";
         publicHostKey = "c3NoLWVkMjU1MTkgQUFBQUMzTnphQzFsWkRJMU5URTVBQUFBSURaRUQ5UU0rcWU3c0I2UjZhdHZQNldOYUkyc0Mybmg3VFRzRDZrZ1JwbnIgcm9vdEBoeWRyYS0yCg==";
       }
     ];
   };
 
+  programs.ssh.knownHosts."hydra-1.net.clerie.de".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIE2xQBCsFBCwL9n4OP/bPngtNO1fy9kPw13Z/NDoba16 root@hydra-1";
   programs.ssh.knownHosts."hydra-2.net.clerie.de".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIDZED9QM+qe7sB6R6atvP6WNaI2sC2nh7TTsD6kgRpnr root@hydra-2";
 
+  users.extraUsers.root.openssh.authorizedKeys.keys = [
+    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMv8Lbca/CR4das3HJ2F/sQ9dA7kdGS1hSVTt5lX4diP root@hydra-1"
+  ];
+
   services.hydra = {
     enable = true;
     port = 3001;
diff --git a/hosts/hydra-2/configuration.nix b/hosts/hydra-2/configuration.nix
index b62e046..43730af 100644
--- a/hosts/hydra-2/configuration.nix
+++ b/hosts/hydra-2/configuration.nix
@@ -11,6 +11,12 @@
   boot.loader.grub.version = 2;
   boot.loader.grub.device = "/dev/vda";
 
+  boot.binfmt.emulatedSystems = [
+    "armv6l-linux"
+    "armv7l-linux"
+    "aarch64-linux"
+  ];
+
   networking.hostName = "hydra-2";
 
   networking.useDHCP = false;