Update Dockerfile

Dockerfile

@@ -12,6 +12,7 @@ COPY --from=build-stage /app/Rel-18 /usr/local/nginx/html/Rel-18
 COPY --from=build-stage /app/Rel-17 /usr/local/nginx/html/Rel-17
 COPY --from=build-stage /app/Rel-16 /usr/local/nginx/html/Rel-16
 COPY --from=build-stage /app/Rel-15 /usr/local/nginx/html/Rel-15
+RUN nginx -V
 
 #RUN ls /etc/nginx/html
 
@@ -20,5 +21,4 @@ COPY --from=build-stage /app/Rel-15 /usr/local/nginx/html/Rel-15
 
 
 EXPOSE 8080
-CMD ["nginx", "-V"]
 CMD ["nginx", "-g", "daemon off;"]