/etc/ssl/dhparam.pem: copy it from a previous stage

nginx_1   | nginx: [emerg] BIO_new_file("/etc/ssl/dhparam.pem") failed (SSL: error:02001002:system library:fopen:No such file or directory:fopen('/etc/ssl/dhparam.pem','r') error:2006D080:BIO routines:BIO_new_file:no such file)

Author: macbre

Dockerfile

@@ -154,6 +154,7 @@ COPY --from=0 /usr/lib/nginx/modules/*.so /usr/lib/nginx/modules/
 COPY --from=0 /usr/sbin/nginx /usr/sbin/nginx-debug /usr/sbin/
 COPY --from=0 /usr/share/nginx/html/* /usr/share/nginx/html/
 COPY --from=0 /usr/bin/envsubst /usr/local/bin/envsubst
+COPY --from=0 /etc/ssl/dhparam.pem /etc/ssl/dhparam.pem
 
 RUN \
 	addgroup -S nginx \