1 files changed, 116 insertions, 0 deletions
diff --git a/fuel-build/docker/mkimage/mkimage.sh b/fuel-build/docker/mkimage/mkimage.sh
new file mode 100755
index 0000000..3424258
--- /dev/null
+++ b/fuel-build/docker/mkimage/mkimage.sh
@@ -0,0 +1,116 @@
+#!/usr/bin/env bash
+##############################################################################
+# Copyright (c) 2015 Ericsson AB and others.
+# stefan.k.berg@ericsson.com
+# jonas.bjurel@ericsson.com
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+
+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")")"
+
+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
+
+umount $rootfsDir/run/shm
+( set -x; rm -rf "$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