fix nginx dockerfile
-FROM nginx:1.17.8
+FROM nginx:latest
-COPY default.template /etc/nginx/templates/
+COPY default.conf.template /etc/nginx/templates/
#RUN echo "server {listen PORT;location / {proxy_pass http://HOST:PORT/;}}" > /etc/nginx/conf.d/nginx.conf
#ENTRYPOINT sed -i 's/PORT/'$PORT'/g' /etc/nginx/conf.d/nginx.conf && \
