update the host files to point to accessible docker container names for backends

added testing for this, including mock backend server.

dockerfiles/services/sslproxy/docker-compose.yml

@@ -14,15 +14,10 @@ services:
   app:
     image: ${LOCAL_IMAGE}:${TAG}
     volumes:
-      - ./letsencrypt:/etc/letsencrypt
+      - ./certs:/etc/letsencrypt
       - ./hosts:/etc/nginx/conf.d:ro
       - ./nginx.conf:/etc/nginx/nginx.conf
       - cache:/data/nginx/cache
     ports:
       - 443:443
       - 80:80
-
-#  certbot:
-#    image: "dkregistry.xai-corp.net:5000/sslproxy:latest"
-#    build:
-#      context: certbot