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+#!/usr/bin/env bash

+set -e

+

+mkimg="$(basename "$0")"

+

+usage() {

+	echo >&2 "usage: $mkimg [-d dir] [-t tag] script [script-args]"

+	echo >&2 "   ie: $mkimg -t someuser/debian debootstrap --variant=minbase jessie"

+	echo >&2 "       $mkimg -t someuser/ubuntu debootstrap --include=ubuntu-minimal trusty"

+	echo >&2 "       $mkimg -t someuser/busybox busybox-static"

+	echo >&2 "       $mkimg -t someuser/centos:5 rinse --distribution centos-5"

+	exit 1

+}

+

+scriptDir="$(dirname "$(readlink -f "$BASH_SOURCE")")/mkimage"

+

+optTemp=$(getopt --options '+d:t:h' --longoptions 'dir:,tag:,help' --name "$mkimg" -- "$@")

+eval set -- "$optTemp"

+unset optTemp

+

+dir=

+tag=

+while true; do

+	case "$1" in

+		-d|--dir) dir="$2" ; shift 2 ;;

+		-t|--tag) tag="$2" ; shift 2 ;;

+		-h|--help) usage ;;

+		--) shift ; break ;;

+	esac

+done

+

+script="$1"

+[ "$script" ] || usage

+shift

+

+if [ ! -x "$scriptDir/$script" ]; then

+	echo >&2 "error: $script does not exist or is not executable"

+	echo >&2 "  see $scriptDir for possible scripts"

+	exit 1

+fi

+

+# don't mistake common scripts like .febootstrap-minimize as image-creators

+if [[ "$script" == .* ]]; then

+	echo >&2 "error: $script is a script helper, not a script"

+	echo >&2 "  see $scriptDir for possible scripts"

+	exit 1

+fi

+

+delDir=

+if [ -z "$dir" ]; then

+	dir="$(mktemp -d ${TMPDIR:-/tmp}/docker-mkimage.XXXXXXXXXX)"

+	delDir=1

+fi

+

+rootfsDir="$dir/rootfs"

+( set -x; mkdir -p "$rootfsDir" )

+

+# pass all remaining arguments to $script

+"$scriptDir/$script" "$rootfsDir" "$@"

+

+# Docker mounts tmpfs at /dev and procfs at /proc so we can remove them

+rm -rf "$rootfsDir/dev" "$rootfsDir/proc"

+mkdir -p "$rootfsDir/dev" "$rootfsDir/proc"

+

+# make sure /etc/resolv.conf has something useful in it

+mkdir -p "$rootfsDir/etc"

+cat > "$rootfsDir/etc/resolv.conf" <<'EOF'

+nameserver 8.8.8.8

+nameserver 8.8.4.4

+EOF

+

+tarFile="$dir/rootfs.tar.xz"

+touch "$tarFile"

+

+(

+	set -x

+	tar --numeric-owner -caf "$tarFile" -C "$rootfsDir" --transform='s,^./,,' .

+)

+

+echo >&2 "+ cat > '$dir/Dockerfile'"

+cat > "$dir/Dockerfile" <<'EOF'

+FROM scratch

+ADD rootfs.tar.xz /

+EOF

+

+# if our generated image has a decent shell, let's set a default command

+for shell in /bin/bash /usr/bin/fish /usr/bin/zsh /bin/sh; do

+	if [ -x "$rootfsDir/$shell" ]; then

+		( set -x; echo 'CMD ["'"$shell"'"]' >> "$dir/Dockerfile" )

+		break

+	fi

+done

+

+( set -x; rm -rf "$rootfsDir" )

+

+if [ "$tag" ]; then

+	( set -x; docker build -t "$tag" "$dir" )

+elif [ "$delDir" ]; then

+	# if we didn't specify a tag and we're going to delete our dir, let's just build an untagged image so that we did _something_

+	( set -x; docker build "$dir" )

+fi

+

+if [ "$delDir" ]; then

+	( set -x; rm -rf "$dir" )

+fi

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+#!/usr/bin/env bash

+set -e

+

+rootfsDir="$1"

+shift

+

+(

+	cd "$rootfsDir"

+

+	# effectively: febootstrap-minimize --keep-zoneinfo --keep-rpmdb --keep-services "$target"

+	#  locales

+	rm -rf usr/{{lib,share}/locale,{lib,lib64}/gconv,bin/localedef,sbin/build-locale-archive}

+	#  docs

+	rm -rf usr/share/{man,doc,info,gnome/help}

+	#  cracklib

+	#rm -rf usr/share/cracklib

+	#  i18n

+	rm -rf usr/share/i18n

+	#  yum cache

+	rm -rf var/cache/yum

+	mkdir -p --mode=0755 var/cache/yum

+	#  sln

+	rm -rf sbin/sln

+	#  ldconfig

+	#rm -rf sbin/ldconfig

+	rm -rf etc/ld.so.cache var/cache/ldconfig

+	mkdir -p --mode=0755 var/cache/ldconfig

+)

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+#!/usr/bin/env bash

+set -e

+

+rootfsDir="$1"

+shift

+

+busybox="$(which busybox 2>/dev/null || true)"

+if [ -z "$busybox" ]; then

+	echo >&2 'error: busybox: not found'

+	echo >&2 '  install it with your distribution "busybox-static" package'

+	exit 1

+fi

+if ! ldd "$busybox" 2>&1 | grep -q 'not a dynamic executable'; then

+	echo >&2 "error: '$busybox' appears to be a dynamic executable"

+	echo >&2 '  you should install your distribution "busybox-static" package instead'

+	exit 1

+fi

+

+mkdir -p "$rootfsDir/bin"

+rm -f "$rootfsDir/bin/busybox" # just in case

+cp "$busybox" "$rootfsDir/bin/busybox"

+

+(

+	cd "$rootfsDir"

+

+	IFS=$'\n'

+	modules=( $(bin/busybox --list-modules) )

+	unset IFS

+

+	for module in "${modules[@]}"; do

+		mkdir -p "$(dirname "$module")"

+		ln -sf /bin/busybox "$module"

+	done

+)

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+#!/usr/bin/env bash

+set -e

+

+rootfsDir="$1"

+shift

+

+# we have to do a little fancy footwork to make sure "rootfsDir" becomes the second non-option argument to debootstrap

+

+before=()

+while [ $# -gt 0 ] && [[ "$1" == -* ]]; do

+	before+=( "$1" )

+	shift

+done

+

+suite="$1"

+shift

+

+(

+	set -x

+	debootstrap "${before[@]}" "$suite" "$rootfsDir" "$@"

+)

+

+# now for some Docker-specific tweaks

+

+# prevent init scripts from running during install/update

+echo >&2 "+ cat > '$rootfsDir/usr/sbin/policy-rc.d'"

+cat > "$rootfsDir/usr/sbin/policy-rc.d" <<'EOF'

+#!/bin/sh

+exit 101

+EOF

+chmod +x "$rootfsDir/usr/sbin/policy-rc.d"

+

+# prevent upstart scripts from running during install/update

+(

+	set -x

+	chroot "$rootfsDir" dpkg-divert --local --rename --add /sbin/initctl

+	ln -sf /bin/true "$rootfsDir/sbin/initctl"

+)

+

+# shrink the image, since apt makes us fat (wheezy: ~157.5MB vs ~120MB)

+( set -x; chroot "$rootfsDir" apt-get clean )

+

+# Ubuntu 10.04 sucks... :)

+if strings "$rootfsDir/usr/bin/dpkg" | grep -q unsafe-io; then

+	# force dpkg not to call sync() after package extraction (speeding up installs)

+	echo >&2 "+ echo force-unsafe-io > '$rootfsDir/etc/dpkg/dpkg.cfg.d/docker-apt-speedup'"

+	echo 'force-unsafe-io' > "$rootfsDir/etc/dpkg/dpkg.cfg.d/docker-apt-speedup"

+fi

+

+if [ -d /etc/apt/apt.conf.d ]; then

+	# _keep_ us lean by effectively running "apt-get clean" after every install

+	aptGetClean='"rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true";'

+	echo >&2 "+ cat > '$rootfsDir/etc/apt/apt.conf.d/docker-clean'"

+	cat > "$rootfsDir/etc/apt/apt.conf.d/docker-clean" <<-EOF

+		DPkg::Post-Invoke { ${aptGetClean} };

+		APT::Update::Post-Invoke { ${aptGetClean} };

+

+		Dir::Cache::pkgcache "";

+		Dir::Cache::srcpkgcache "";

+	EOF

+

+	# remove apt-cache translations for fast "apt-get update"

+	echo >&2 "+ cat > '$rootfsDir/etc/apt/apt.conf.d/docker-no-languages'"

+	echo 'Acquire::Languages "none";' > "$rootfsDir/etc/apt/apt.conf.d/docker-no-languages"

+fi

+

+if [ -z "$DONT_TOUCH_SOURCES_LIST" ]; then

+	# tweak sources.list, where appropriate

+	lsbDist=

+	if [ -z "$lsbDist" -a -r "$rootfsDir/etc/os-release" ]; then

+		lsbDist="$(. "$rootfsDir/etc/os-release" && echo "$ID")"

+	fi

+	if [ -z "$lsbDist" -a -r "$rootfsDir/etc/lsb-release" ]; then

+		lsbDist="$(. "$rootfsDir/etc/lsb-release" && echo "$DISTRIB_ID")"

+	fi

+	if [ -z "$lsbDist" -a -r "$rootfsDir/etc/debian_version" ]; then

+		lsbDist='Debian'

+	fi

+	case "$lsbDist" in

+		debian|Debian)

+			# updates and security!

+			if [ "$suite" != 'sid' -a "$suite" != 'unstable' ]; then

+				(

+					set -x

+					sed -i "p; s/ $suite main$/ ${suite}-updates main/" "$rootfsDir/etc/apt/sources.list"

+					echo "deb http://security.debian.org $suite/updates main" >> "$rootfsDir/etc/apt/sources.list"

+				)

+			fi

+			;;

+		ubuntu|Ubuntu)

+			# add the universe, updates, and security repositories

+			(

+				set -x

+				sed -i "

+					s/ $suite main$/ $suite main universe/; p;

+					s/ $suite main/ ${suite}-updates main/; p;

+					s/ $suite-updates main/ ${suite}-security main/

+				" "$rootfsDir/etc/apt/sources.list"

+			)

+			;;

+		tanglu|Tanglu)

+			# add the updates repository

+			if [ "$suite" != 'devel' ]; then

+				(

+					set -x

+					sed -i "p; s/ $suite main$/ ${suite}-updates main/" "$rootfsDir/etc/apt/sources.list"

+				)

+			fi

+			;;

+		steamos|SteamOS)

+			# add contrib and non-free

+			(

+				set -x

+				sed -i "s/ $suite main$/ $suite main contrib non-free/" "$rootfsDir/etc/apt/sources.list"

+			)

+			;;

+	esac

+fi

+

+# make sure we're fully up-to-date, too

+(

+	set -x

+	chroot "$rootfsDir" apt-get update

+	chroot "$rootfsDir" apt-get dist-upgrade -y

+)

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+#!/usr/bin/env bash

+set -e

+

+rootfsDir="$1"

+shift

+

+# specifying --arch below is safe because "$@" can override it and the "latest" one wins :)

+

+(

+	set -x

+	rinse --directory "$rootfsDir" --arch amd64 "$@"

+)

+

+"$(dirname "$BASH_SOURCE")/.febootstrap-minimize" "$rootfsDir"

+

+if [ -d "$rootfsDir/etc/sysconfig" ]; then

+	# allow networking init scripts inside the container to work without extra steps

+	echo 'NETWORKING=yes' > "$rootfsDir/etc/sysconfig/network"

+fi

+

+# make sure we're fully up-to-date, too

+(

+	set -x

+	chroot "$rootfsDir" yum update -y

+)