reordered Dockerfile for faster compile

icecast/Dockerfile

@@ -2,8 +2,6 @@ FROM debian:latest as builder
 
 WORKDIR /app
 
-COPY icecast.xml.template /etc/icecast2/icecast.xml.template
-COPY entrypoint.sh /entrypoint.sh
 
 RUN apt-get update \
     && apt-get install --yes icecast2 gettext
@@ -12,4 +10,7 @@ RUN useradd radio
 RUN chown -R radio:radio /etc/icecast2 /var/log/icecast2
 USER radio
 
+COPY icecast.xml.template /etc/icecast2/icecast.xml.template
+COPY entrypoint.sh /entrypoint.sh
+
 ENTRYPOINT [ "/entrypoint.sh" ]