re-add haproxy

docker-compose.haproxy.yml

@@ -0,0 +1,15 @@
+version: '3.1'
+
+services:
+  haproxy:
+    image: haproxytech/haproxy-alpine:latest
+    ports:
+      - "80:80"
+    expose:
+      - 80
+    environment:
+      - AUTH_HTTP=$AUTH_HTTP
+      - MAINNODE=$MAIN_NODE
+    volumes:
+      - ./haproxy/:/usr/local/etc/haproxy:ro
+    restart: unless-stopped