magpie: add ssh service to initrd

magpie/configuration.nix

@@ -23,6 +23,20 @@
     "net.ipv4.tcp_congestion_control" = "bbr";
   };
 
+  boot.initrd = {
+    compressor = "zstd";
+    availableKernelModules = ["virtio-pci"];
+    network = {
+      enable = true;
+      udhcpc.enable = true;
+      ssh = {
+        enable = true;
+        hostKeys = [config.sops.secrets."ssh_tmp_key".path];
+        authorizedKeyFiles = [../nixy/ssh_pubkey];
+      };
+    };
+  };
+
   # Set your time zone.
   time.timeZone = "Europe/Berlin";
 
@@ -316,6 +330,10 @@
     sopsFile = ./secrets/borgbase_ssh_key.yaml;
   };
 
+  sops.secrets."ssh_tmp_key" = {
+    sopsFile = ./secrets/ssh_tmp_key.yaml;
+  };
+
   networking.hostName = "magpie";
 
   networking.firewall.enable = true;