create-image-manifest

#!/bin/bash
#
# Copyright (c) 2016 Joyent Inc., All rights reserved.
#

set -o errexit

#now=$(date -u +%Y-%m-%dT%H:%MZ)
now=$(date -u +%Y-%m-%dT%TZ)
vm_uuid=$(uuid)
SUM=/usr/bin/sum

usage() {
	cat <<USAGE
Usage: $0 -f filename -n <name> -s <size> -v <version>

	-d <image description> (optional, default: "<NAME> <VERSION> KVM Image")
	-D <disk driver> (optional, default: "virtio")
	-f <filename of VM image> (required)
	-n <name of VM image> (required)
	-N <NIC driver> (optional, default: "virtio")
	-o <OS name> (optional, default: bsd)
	-s <size of virtual disk (as seen by VM, MiB)> (required)
	-v <version of VM image> (required)
	-h <homepage link> (optional)

Example:

	$0 -f freebsd-11-20161019.zfs.gz -n freebsd-11 -s 10240 -v 20161019 -o bsd

USAGE
	exit 1
}

while getopts d:D:f:n:N:o:s:v:h:? c; do
	case ${c} in
	d)
		description=${OPTARG}
		;;
	D)
		disk_driver=${OPTARG}
		;;
	f)
		filename=${OPTARG}
		;;
	n)
		name=${OPTARG}
		;;
	N)
		nic_driver=${OPTARG}
		;;
	o)
		os=${OPTARG}
		;;
	s)
		image_size=${OPTARG}
		;;
	v)
		version=${OPTARG}
		;;
	h)
		homepage=${OPTARG}
		;;
	\?)
		usage
		;;
	esac
done

if [[ -z ${filename} || -z ${name} || -z ${version} || -z ${image_size} ]]; then
	echo "FATAL: All of -f, -n, -s and -v are required."
	usage
fi

if [[ -z ${description} ]]; then
	description="${name} ${version} KVM image"
fi

if [[ -z ${os} ]]; then
	os=bsd
fi

if [[ -z ${homepage} ]]; then
	homepage=http://docs.joyent.com/
fi

if [[ ! -f ${filename} ]]; then
	echo "FATAL: ${filename} does not exist."
	usage
fi

if [[ -z ${disk_driver} ]]; then
	disk_driver="virtio"
fi

if [[ -z ${nic_driver} ]]; then
	nic_driver="virtio"
fi

shasum=$($SUM -x sha1 ${filename} | cut -d' ' -f1)
filesize=$(wc -c < ${filename})

cat <<EOF
{
	"v": "2",
	"name": "${name}",
	"version": "${version}",
	"type": "zvol",
	"cpu_type": "host",
	"description": "${description}",
	"homepage": "${homepage}",
	"published_at": "${now}",
	"os": "${os}",
	"image_size": "${image_size}",
	"files": [
		{
			"sha1": "${shasum}",
			"size": ${filesize},
			"compression": "gzip"
		}
	],
	"requirements": {
		"networks": [
			{
				"name": "net0",
				"description": "public"
			}
		],
		"ssh_key": true
	},
	"disk_driver": "virtio",
	"nic_driver": "virtio",
	"uuid": "${vm_uuid}",
	"public": false,
	"owner": "00000000-0000-0000-0000-000000000000",
	"users": [{"name": "root"}],
	"tags": {
		 "role": "os"
	}
}
EOF