fix

Dockerfile

@@ -44,7 +44,7 @@ RUN set -x && \
     ln -sf /dev/stdout /var/log/nginx/access.log && \
     ln -sf /dev/stderr /var/log/nginx/error.log && \
     rm -rf /etc/nginx/sites-enabled/* /etc/nginx/conf.d/default.conf /etc/nginx/nginx.conf && \
-    mkdir /etc/nginx/stream /etc/nginx/generated && \
+    mkdir /etc/nginx/stream /etc/nginx/generated /etc/nginx/certs && \
     openssl dhparam 4096 > /etc/nginx/generated/dhparam.pem && \
     openssl rand 80 > /etc/nginx/generated/ticket.key