From 898d12cff6f0b16ba65a85bc221c8caf49ee0572 Mon Sep 17 00:00:00 2001
From: Lars Kellogg-Stedman <lars@redhat.com>
Date: Tue, 23 May 2017 12:21:11 -0400
Subject: [PATCH] added os-create-config-drive script

---
 os-create-config-drive | 140 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 140 insertions(+)
 create mode 100755 os-create-config-drive

diff --git a/os-create-config-drive b/os-create-config-drive
new file mode 100755
index 0000000..67b4ebb
--- /dev/null
+++ b/os-create-config-drive
@@ -0,0 +1,140 @@
+#!/bin/sh
+
+# This will generate a openstack-style config drive image suitable for
+# use with cloud-init.  You may optionally pass in an ssh public key
+# (using the -k/--ssh-key option) and a user-data blog (using the
+# -u/--user-data option).
+
+md_api_versions='
+2015-10-15
+2016-06-30
+2016-10-06
+2017-02-22
+'
+
+
+usage () {
+	echo "usage: ${0##*/}: [--ssh-key <pubkey>] [--vendor-data <file>] [--user-data <file>] [--hostname <hostname>] <imagename>"
+}
+
+ARGS=$(getopt \
+	-o k:u:v:h:n: \
+	--long help,hostname:,ssh-key:,user-data:,vendor-data:,network-data: -n ${0##*/} \
+	-- "$@")
+
+if [ $? -ne 0 ]; then
+	usage >&2
+	exit 2
+fi
+
+eval set -- "$ARGS"
+
+while :; do
+	case "$1" in
+		--help)
+			usage
+			exit 0
+			;;
+		-k|--ssh-key)
+			ssh_key="$2"
+			shift 2
+			;;
+		-u|--user-data)
+			user_data="$2"
+			shift 2
+			;;
+		-v|--vendor-data)
+			vendor_data="$2"
+			shift 2
+			;;
+		-n|--network-data)
+			network_data="$2"
+			shift 2
+			;;
+		-h|--hostname)
+			hostname="$2"
+			shift 2
+			;;
+		--)	shift
+			break
+			;;
+	esac
+done
+
+if ! [ "$#" -eq 1 ]; then
+	echo "ERROR: missing target filename" >&2
+	exit 1
+fi
+
+config_image=$1
+shift
+
+if [ "$ssh_key" ] && [ -f "$ssh_key" ]; then
+	echo "adding pubkey from $ssh_key"
+	ssh_key_data=$(cat "$ssh_key")
+fi
+
+uuid=$(uuidgen)
+if ! [ "$hostname" ]; then
+	hostname="$uuid"
+fi
+
+trap 'rm -rf $config_dir' EXIT
+config_dir=$(mktemp -t -d configXXXXXX)
+
+mkdir -p "${config_dir}/openstack/latest"
+
+if [ "$user_data" ] && [ -f "$user_data" ]; then
+	echo "adding user data from $user_data"
+	cp $user_data $config_dir/openstack/latest/user-data
+fi
+
+if [ "$vendor_data" ] && [ -f "$vendor_data" ]; then
+	echo "adding vendor data from $vendor_data"
+	cp $vendor_data "$config_dir/openstack/latest/vendor_data.json"
+else
+	echo "{}" > "$config_dir/openstack/latest/vendor_data.json"
+fi
+
+if [ "$network_data" ] && [ -f "$network_data" ]; then
+	echo "adding network data from $network_data"
+	cp $network_data "$config_dir/openstack/latest/network_data.json"
+fi
+
+cat > $config_dir/openstack/latest/meta_data.json <<-EOF
+{
+"uuid": "$uuid",
+"hostname": "$hostname",
+"name": "$hostname",
+"launch_index": 0,
+"availability_zone": "nova"
+EOF
+
+if [ "$ssh_key_data" ]; then
+	cat >> $config_dir/meta_data.json <<-EOF
+	,
+	"keys": [
+	{ "name": "default", "type": "ssh", "data": "$ssh_key_data" }
+	],
+	"public_keys": {
+	  "default": "$ssh_key_data"
+	}
+	EOF
+fi
+
+echo "}" >> $config_dir/openstack/latest/meta_data.json
+
+for v in $md_api_versions; do
+	echo "setting up api version $v"
+	cp -a "$config_dir/openstack/latest" "$config_dir/openstack/$v"
+done
+
+#PS1="debug> " bash --norc
+
+echo "generating configuration image at $config_image"
+if ! mkisofs -o $config_image -V cidata -r -J --quiet $config_dir; then
+	echo "ERROR: failed to create $config_image" >&2
+	exit 1
+fi
+chmod a+r $config_image
+