Add missing package

Dockerfile

@@ -2,8 +2,12 @@ FROM alpine:3.6
 MAINTAINER JoshuaAvalon
 
 RUN apk add --update curl && \
+    apk add --update bash && \
+    apk add --update perl && \
     rm -rf /var/cache/apk/*
 
+RUN mkdir /app
+
 ADD cloudflare.sh /app
 
 WORKDIR "/app"