docker-entrypoint permissions fix

Dockerfile

@@ -2,12 +2,13 @@ FROM alpine
 MAINTAINER b4tman <b4tm4n@mail.ru>
 
 ENV SQUID_CONFIG_FILE=/etc/squid/squid.conf
-RUN apk add --no-cache squid
+
+COPY docker-entrypoint.sh /
+RUN apk add --no-cache squid \
+	chmod 755 /docker-entrypoint.sh
+ENTRYPOINT ["/docker-entrypoint.sh"]
 
 VOLUME ["/var/cache/squid"]	
-	
-COPY docker-entrypoint.sh /
-ENTRYPOINT ["/docker-entrypoint.sh"]
-CMD ["squid"]
-
 EXPOSE 3128/tcp
+
+CMD ["squid"]