From 756341ea4cfdb53db17ca51759ae30a609e620aa Mon Sep 17 00:00:00 2001
From: Pierre Bourdon <delroth@gmail.com>
Date: Fri, 12 Jul 2024 21:57:04 +0200
Subject: [PATCH] builders: tune sshd MaxStartups to avoid rate limiting Hydra

---
 services/baremetal-builder/default.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/services/baremetal-builder/default.nix b/services/baremetal-builder/default.nix
index 6734bcc..72443b3 100644
--- a/services/baremetal-builder/default.nix
+++ b/services/baremetal-builder/default.nix
@@ -105,6 +105,12 @@ in
     services.resolved.enable = false;
     networking.resolvconf.useLocalResolver = true;
 
+    # Hydra blasts ssh connections and does not multiplex. Loosen some of the
+    # rate limiting.
+    services.openssh.settings = {
+      MaxStartups = "500:30:1000";
+    };
+
 
     bagel.sysadmin.enable = true;