Add haproxy/mmproxy combo

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/jupiter-vps/configs/haproxy/default.nix

@@ -0,0 +1,26 @@
+{ ... }:
+{
+  # TODO: Some way to automatically configure?
+  services.haproxy = {
+    enable = true;
+    config = ''
+      global
+        maxconn 4096
+
+      defaults
+        mode tcp
+        timeout connect 5s
+        timeout client 30s
+        timeout server 30s
+
+      frontend http
+        bind *:80
+        bind *:443
+        default_backend main
+
+      backend main
+        server jupiter 10.0.0.2:80 send-proxy-v2
+        server jupiter_ssl 10.0.0.2:443 send-proxy-v2
+    '';
+  };
+}