Also copy acme challenge file.

nginx/Dockerfile

@@ -3,10 +3,11 @@ FROM nginx:1.15.0-alpine
 RUN rm /etc/nginx/conf.d/default.conf
 
 ARG NGINX_CONF=nginx.conf
-
+ARG ACME_FILE
 ARG SSL_CERT
 ARG SSL_KEY
 
 COPY ${NGINX_CONF} /etc/nginx/conf.d/nginx.conf
 COPY ${SSL_CERT} /etc/certs/cert.pem
 COPY ${SSL_KEY} /etc/certs/key.pem
+COPY ${ACME_FILE} /usr/share/nginx/html/

production.yml_example

@@ -23,6 +23,7 @@ services:
       #     - NGINX_CONF=ssl.conf
       #     - SSL_CERT=/etc/letsencrypt/live/$DOMAIN/fullchain.pem
       #     - SSL_KEY=/etc/letsencrypt/live/$DOMAIN/privkey.pem
+      #     - ACME_FILE=./<some_hash>
 
     flower:
       restart: always