Do not expose agent port on host + simplify docker-compose file

Author: lyrixx

docker-compose.yml

@@ -2,18 +2,16 @@ version: '3'
 
 services:
     nginx:
-        build: ./services/nginx
+        build: services/nginx
         ports:
             - "8080:80"
         volumes:
             - ./app:/var/www
     nginx-compiled:
-        build: ./services/nginx-compiled
+        build: services/nginx-compiled
         ports:
             - "8081:80"
         volumes:
             - ./app:/var/www
     redirectionio-agent:
-        build: ./services/redirectionio-agent
-        ports:
-            - "10301:10301"
+        build: services/redirectionio-agent