Add Dockerfile for Alibaba Cloud

Dockerfile.alc

@@ -0,0 +1,8 @@
+FROM onlyoffice4ami/communityserver:latest
+ARG APPSETTING_CONFIG=/var/www/onlyoffice/WebStudio/web.appsettings.config
+
+RUN xmlstarlet ed -L \
+    -s "/appSettings" -t elem -n "add" \
+    -i "/appSettings/add[not(@*)]" -t attr -n "key" -v "web.ami.meta" \
+    -i "/appSettings/add[@key='web.ami.meta']" -t attr -n "value" -v "http://100.100.100.200/latest/meta-data/" \
+    $APPSETTING_CONFIG