add keepalived conf?

galanin/configuration.nix

@@ -91,7 +91,36 @@
     liveRestore = false; # NOTE: Incompatible with swarm
   };
 # List services that you want to enable:
-
+  services.keepalived = {
+    enable = true;
+    openFirewall = true;
+    extraConfig = ''
+      vrrp_track_process track_traefik {
+        process traefik
+          weight 20
+          delay 1
+      }
+    '';
+      vrrpInstances = {
+        VI_1 = {
+          state = "BACKUP";
+          interface = "enp0s31f6";
+          virtualRouterId = 51;
+          priority=100;
+          virtualIps = [ {addr = "192.168.1.64";}];
+          extraConfig = ''
+            authentication {
+              auth_type PASS
+                auth_pass 3141
+            }
+          track_process {
+            track_traefik
+          }
+          advert_int 1
+            '';
+        };
+      };
+  };
 # Enable the OpenSSH daemon.
 # services.openssh.enable = true;