Add php7. 1-simplexml@php

Author: Daynnnnn

Dockerfile-7.1

@@ -2,7 +2,7 @@ FROM alpine:3.7
 
 ENV PHP_VERSION 7.1
 
-RUN apk add --no-cache bash supervisor curl
+RUN apk add --no-cache bash supervisor curl php7.1-simplexml@php
 
 RUN apk --no-cache add ca-certificates openssl && \
   apk add --no-cache wget ca-certificates \
@@ -282,4 +282,4 @@ RUN /usr/bin/php-fpm --fpm-config /etc/php/php-fpm.conf -t
 # Cron
 RUN mkdir -p /etc/cron.d
 
-CMD ["/start-web.sh"]
+CMD ["/start-web.sh"]