create-kvm-manifest

#!/usr/bin/env bash
#
# Copyright (c) 2017 Joyent Inc., All rights reserved.
#

set -euo pipefail
IFS=$'\n\t'

NOW=$(date -u +%Y-%m-%dT%TZ)
VM_UUID=$(uuid)
SUM=/usr/bin/sum
description=
disk_driver=
filename=
name=
nic_driver=
os=
image_size=
version=
homepage=

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

Options:
	-d <image description> (optional, default: "<NAME> <VERSION> KVM Triton")
	-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: other)
	-s <size of virtual disk (as seen by VM, MiB)> (required)
	-v <version of VM image> (optional, default: YYYMMDDHHMM)
	-h <homepage link> (optional, default: https://docs.joyent.com/images/)

Example:

	$0 -f ubuntu-14-20170207.zfs.gz -s 65566 -n Ubuntu -v 20170207 

USAGE
	exit 1
}

while getopts d:D:f:n:N:o:s:v:h:? OPTION; do
	case $OPTION in
	d)
		description=${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 $image_size ]]; then
	echo "FATAL: All of -f, -n, and -s are required."
	usage
fi

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

if [[ -z $os ]]; then
	os=other
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

if [[ -z $version ]]; then
	version=$(date +%Y%m%d%H%M)
fi

if [[ -z $homepage ]]; then
	homepage="https://docs.joyent.com/images/"
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": $filesize,
			"compression": "gzip"
		}
	],
	"requirements": {
		"networks": [
			{
				"name": "net0",
				"description": "public"
			}
		]
	},
	"disk_driver": "virtio",
	"nic_driver": "virtio",
	"uuid": "${VM_UUID}",
	"public": false,
	"owner": "00000000-0000-0000-0000-000000000000",
	}
}
EOF