sed replace apt mirror with default deb.debian.org for debian distros

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

contrib/builder/deb/amd64/debian-jessie/Dockerfile

@@ -4,9 +4,9 @@
 
 FROM debian:jessie
 
-# allow replacing httpredir mirror
-ARG APT_MIRROR=httpredir.debian.org
-RUN sed -i s/httpredir.debian.org/$APT_MIRROR/g /etc/apt/sources.list
+# allow replacing httpredir or deb mirror
+ARG APT_MIRROR=deb.debian.org
+RUN sed -ri "s/(httpredir|deb).debian.org/$APT_MIRROR/g" /etc/apt/sources.list
 
 RUN apt-get update && apt-get install -y apparmor bash-completion btrfs-tools build-essential curl ca-certificates debhelper dh-apparmor dh-systemd git libapparmor-dev libdevmapper-dev libltdl-dev  libsqlite3-dev pkg-config libsystemd-journal-dev --no-install-recommends && rm -rf /var/lib/apt/lists/*
 

contrib/builder/deb/amd64/debian-stretch/Dockerfile

@@ -4,9 +4,9 @@
 
 FROM debian:stretch
 
-# allow replacing httpredir mirror
-ARG APT_MIRROR=httpredir.debian.org
-RUN sed -i s/httpredir.debian.org/$APT_MIRROR/g /etc/apt/sources.list
+# allow replacing httpredir or deb mirror
+ARG APT_MIRROR=deb.debian.org
+RUN sed -ri "s/(httpredir|deb).debian.org/$APT_MIRROR/g" /etc/apt/sources.list
 
 RUN apt-get update && apt-get install -y apparmor bash-completion btrfs-tools build-essential curl ca-certificates debhelper dh-apparmor dh-systemd git libapparmor-dev libdevmapper-dev libltdl-dev libseccomp-dev libsqlite3-dev pkg-config libsystemd-dev --no-install-recommends && rm -rf /var/lib/apt/lists/*
 

contrib/builder/deb/amd64/debian-wheezy/Dockerfile

@@ -4,10 +4,10 @@
 
 FROM debian:wheezy-backports
 
-# allow replacing httpredir mirror
-ARG APT_MIRROR=httpredir.debian.org
-RUN sed -i s/httpredir.debian.org/$APT_MIRROR/g /etc/apt/sources.list
-RUN sed -i s/httpredir.debian.org/$APT_MIRROR/g /etc/apt/sources.list.d/backports.list
+# allow replacing httpredir or deb mirror
+ARG APT_MIRROR=deb.debian.org
+RUN sed -ri "s/(httpredir|deb).debian.org/$APT_MIRROR/g" /etc/apt/sources.list
+RUN sed -ri "s/(httpredir|deb).debian.org/$APT_MIRROR/g" /etc/apt/sources.list.d/backports.list
 
 RUN apt-get update && apt-get install -y -t wheezy-backports btrfs-tools --no-install-recommends && rm -rf /var/lib/apt/lists/*
 RUN apt-get update && apt-get install -y apparmor bash-completion  build-essential curl ca-certificates debhelper dh-apparmor dh-systemd git libapparmor-dev libdevmapper-dev libltdl-dev  libsqlite3-dev pkg-config --no-install-recommends && rm -rf /var/lib/apt/lists/*

contrib/builder/deb/amd64/generate.sh

@@ -43,14 +43,14 @@ for version in "${versions[@]}"; do
 
 	if [ "$distro" = "debian" ]; then
 		cat >> "$version/Dockerfile" <<-'EOF'
-			# allow replacing httpredir mirror
-			ARG APT_MIRROR=httpredir.debian.org
-			RUN sed -i s/httpredir.debian.org/$APT_MIRROR/g /etc/apt/sources.list
+			# allow replacing httpredir or deb mirror
+			ARG APT_MIRROR=deb.debian.org
+			RUN sed -ri "s/(httpredir|deb).debian.org/$APT_MIRROR/g" /etc/apt/sources.list
 		EOF
 
 		if [ "$suite" = "wheezy" ]; then
 			cat >> "$version/Dockerfile" <<-'EOF'
-				RUN sed -i s/httpredir.debian.org/$APT_MIRROR/g /etc/apt/sources.list.d/backports.list
+				RUN sed -ri "s/(httpredir|deb).debian.org/$APT_MIRROR/g" /etc/apt/sources.list.d/backports.list
 			EOF
 		fi