allow replacing httpredir or deb mirror in jessie

Signed-off-by: Andrew Hsu <andrewhsu@docker.com>

Dockerfile

@@ -25,16 +25,15 @@
 
 FROM debian:jessie
 
+# allow replacing httpredir or deb mirror
+ARG APT_MIRROR=deb.debian.org
+RUN sed -ri "s/(httpredir|deb).debian.org/$APT_MIRROR/g" /etc/apt/sources.list
+
 # Add zfs ppa
 RUN apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys E871F18B51E0147C77796AC81196BA81F6B0FC61 \
 	|| apt-key adv --keyserver hkp://pgp.mit.edu:80 --recv-keys E871F18B51E0147C77796AC81196BA81F6B0FC61
 RUN echo deb http://ppa.launchpad.net/zfs-native/stable/ubuntu trusty main > /etc/apt/sources.list.d/zfs.list
 
-
-# Allow replacing httpredir mirror
-ARG APT_MIRROR=httpredir.debian.org
-RUN sed -i s/httpredir.debian.org/$APT_MIRROR/g /etc/apt/sources.list
-
 # Packaged dependencies
 RUN apt-get update && apt-get install -y \
 	apparmor \

Dockerfile.armhf

@@ -17,6 +17,10 @@
 
 FROM armhf/debian:jessie
 
+# allow replacing httpredir or deb mirror
+ARG APT_MIRROR=deb.debian.org
+RUN sed -ri "s/(httpredir|deb).debian.org/$APT_MIRROR/g" /etc/apt/sources.list
+
 # Packaged dependencies
 RUN apt-get update && apt-get install -y \
 	apparmor \

Dockerfile.simple

@@ -7,6 +7,10 @@
 
 FROM debian:jessie
 
+# allow replacing httpredir or deb mirror
+ARG APT_MIRROR=deb.debian.org
+RUN sed -ri "s/(httpredir|deb).debian.org/$APT_MIRROR/g" /etc/apt/sources.list
+
 # Compile and runtime deps
 # https://github.com/docker/docker/blob/master/project/PACKAGERS.md#build-dependencies
 # https://github.com/docker/docker/blob/master/project/PACKAGERS.md#runtime-dependencies