build-img: generate a QCOW2 image
Rewrote script (build-img) that generates a QCOW2 (virtual machine) image with StarlingX pre-installed. This will allow users to create virtual machines more easily using a disk where verything is already installed. This script updates a standard iso file with a default menu choice (e.g., AIO/serial console) and adds a kickstart script that configures the network; then boots the ISO in QEMU and lets it install to a disk image. The generated image only works in QEMU because it has a few things that are specific to that emulation: * /etc/lvm/lvm.conf restricts LVM to only the bus/port/device type that QEMU emulates SATA as * It includes configuration for the network device named "ens3", which is QEMU's default Story: 2007858 Task: 40163 Change-Id: I9fa6960eadbeca9481dc91c0878153d3fe95f0c1 Signed-off-by: Davlet Panech <davlet.panech@windriver.com>
This commit is contained in:
Davlet Panech
parent
26658d920b
commit
0c7d394f60
@ -1,96 +1,295 @@
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#!/bin/bash
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# Build an IMG file capable of being booted in a virtual environment
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# The default settings are vda device which the Cumulus environment expects
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# and controller mode
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PROGNAME=$(basename "$0")
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FORCE=0
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AUTO_MODE=
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IMG_SIZE=
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BOOTIMAGE_ISO=
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IMG_FILE=
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AUTO_ISO=
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DHCPV6C=yes
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OAM_DEV=ens3
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: KVM=
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KVM_OPTS=()
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TEMPFILES_DIR=
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ENABLE_TTY_ECHO=0
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usage () {
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echo ""
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echo "Usage: "
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echo " build-img [--cpe] [--dest <filename>] [--part [1 | 2]]"
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echo " --dest <tis.img>"
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echo " --cpe Boots in CPE mode. Default is controller mode."
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echo ""
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# Print out the help message
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usage() {
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echo "\
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Usage: $0 OPTIONS...
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Create a QCOW2/QEMU image with StarlingX pre-installed
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-f,--force overwrite output file if it exists
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-m,--mode={controller|aio|aio_lowlatency}
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create a controller or an all-in-one/low latency system
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(default: aio)
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-s,--size=nnnG image file size, must end with "G" (default: 500G)
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-e,--oam-dev OAM network device (default: ens3)
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-4,--ip4 don't configure IPv6 in the generated image
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-i,--iso=BOOTIMAGE_ISO
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use this iso file as input, it must have been generated
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by build-iso with default options
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(default: \$MY_WORKSPACE/export/bootimage.iso)
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-o,--output=IMG_FILE
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output image file name
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(default: \$MY_WORKSPACE/export/stx_\$MODE.qcow2)
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ENVIRONMENT
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MY_REPO source repo directory
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MY_WORKSPACE build workspace directory
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KVM path to kvm executable (default: auto)
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"
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}
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DEST_ISO=bootimage_auto.iso
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DEST_IMG=tis.img
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AUTO_MODE=controller
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HELP=0
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PART=0
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# Delete temporary files
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cleanup() {
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# QEMU unsets echo in console terminal -- undo that before exiting
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[[ $ENABLE_TTY_ECHO -eq 0 ]] || stty echo
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rm -rf "$TEMPFILES_DIR"
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rm -f "$IMG_FILE.tmp"
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}
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# read the options
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TEMP=`getopt -o hp:d: --long help,cpe,part:,dest: -n 'test.sh' -- "$@"`
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eval set -- "$TEMP"
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# Clean up before exiting due to a signal
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handle_sig() {
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trap - EXIT
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cleanup
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exit 1
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}
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# extract options and their arguments into variables.
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while true ; do
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case "$1" in
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-h|--help) HELP=1 ; shift ;;
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--cpe) AUTO_MODE=cpe; shift ;;
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-d | --dest) DEST_IMG="$2"; shift; shift ;;
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-p | --part) PART="$2"; shift; shift ;;
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--) shift ; break ;;
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*) echo "Internal error!" ; exit 1 ;;
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esac
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done
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# Clean up before normal exit
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handle_exit() {
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local rv="$?"
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trap - EXIT
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cleanup
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exit $rv
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}
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if [ $HELP -eq 1 ]; then
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usage
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exit 0
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# Print out an error message and exit
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die() {
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echo "$PROGNAME: error: $*" >&2
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exit 1
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}
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# Print out a command-line error message and exit
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cmdline_error() {
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if [ "$#" -gt 0 ] ; then
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echo "$PROGNAME: error: $*" >&2
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fi
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echo "Type \`$0 --help' for more info." >&2
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exit 2
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}
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# find QEMU/KVM
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find_kvm() {
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local kvm
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if [[ -n "$KVM" ]] ; then
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kvm=$(which "$KVM")
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[[ -n $kvm ]] || exit 1
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else
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for kvm_basename in qemu-kvm kvm ; do
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kvm=$(export PATH=$PATH:/usr/bin:/usr/libexec ; which $kvm_basename 2>/dev/null || :)
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[[ -n $kvm ]] && break || :
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done
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[[ -n $kvm ]] || die "unable to find kvm executable"
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fi
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KVM="$kvm"
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if [[ -c /dev/kvm ]] ; then
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KVM_OPTS+=("-enable-kvm")
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fi
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}
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# Process command line
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init() {
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local temp
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temp=$(getopt -o hf4e:m:s:i:o: --long help,force,ip4,oam-dev:,mode:,size:,iso:,output: -n "$PROGNAME" -- "$@") || cmdline_error
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eval set -- "$temp"
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while true ; do
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case "$1" in
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-h|--help)
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usage
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exit 0
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;;
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-f|--force)
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FORCE=1
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shift
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;;
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-4|--ip4)
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DHCPV6C=no
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shift
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;;
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-e|--oam-dev)
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OAM_DEV="$2"
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shift 2
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;;
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-m|--mode)
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[[ "$2" =~ ^(controller|aio|aio_lowlatency)$ ]] || cmdline_error "invalid --mode"
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AUTO_MODE="$2"
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shift 2
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;;
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-s|--size)
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[[ $2 =~ ^[0-9]{1,5}G$ ]] || cmdline_error "invalid --size"
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IMG_SIZE="$2"
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shift 2
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;;
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-i|--iso)
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BOOTIMAGE_ISO="$2"
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shift 2
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;;
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-o|--output)
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IMG_FILE="$2"
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shift 2
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;;
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--)
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shift
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break
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;;
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-?*)
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cmdline_error
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;;
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*)
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break
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;;
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esac
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done
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[[ $# -le 0 ]] || cmdline_error "too many arguments"
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# These are required
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[[ -n $MY_WORKSPACE ]] || die "MY_WORKSPACE is not set"
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[[ -n $MY_REPO ]] || die "MY_REPO is not set"
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# Defaults
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: ${AUTO_MODE:=aio}
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: ${IMG_SIZE:=500G}
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: ${BOOTIMAGE_ISO:=$MY_WORKSPACE/export/bootimage.iso}
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: ${IMG_FILE:=$MY_WORKSPACE/export/stx_$AUTO_MODE.qcow2}
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}
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# main
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init "$@"
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# make sure we clean up before exiting
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trap handle_sig INT TERM PIPE HUP
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trap handle_exit EXIT
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# make sure update-iso.sh exists
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UPDATE_ISO=$MY_REPO/stx/utilities/utilities/platform-util/scripts/update-iso.sh
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: <"$UPDATE_ISO" || exit 1
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# make sure input ISO file exists
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: <"$BOOTIMAGE_ISO" || exit 1
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# find QEMU/KVM
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find_kvm
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# find qemu-img
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which qemu-img >/dev/null || exit 1
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# refuse to overwrite existing output file
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if [[ -e "$IMG_FILE" ]] && [[ $FORCE -ne 1 ]] ; then
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die "output file $IMG_FILE already exist, delete it first or use --force"
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fi
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echo PART=$PART
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# which menu item to use?
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menu_item=
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case "$AUTO_MODE" in
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controller) menu_item=0 ;;
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aio) menu_item=2 ;;
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aio_lowlatency) menu_item=4 ;;
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*) die "internal error" ;;
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esac
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# Step 1: Build an ISO that autoboots
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# create a directory for temporary files
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TEMPFILES_DIR=$(mktemp -d -t build_img.XXXXXXXX) || exit 1
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# Cumulus default device is vda
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if [ $PART -ne 2 ]; then
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build-iso --file bootimage_auto.iso --auto $AUTO_MODE --device vda --cumulus
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# create an updated iso with the menu item pre-selected
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auto_iso="$TEMPFILES_DIR/bootimage_$AUTO_MODE.iso"
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rm -f "$auto_iso"
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cmd=("$UPDATE_ISO" -i "$BOOTIMAGE_ISO" -o "$auto_iso" -d "$menu_item" -t 3)
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# generate a kickstart add-on that sets up OAM_DEV
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ks_addon="$TEMPFILES_DIR/ks_addon.sh"
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cat >"$ks_addon" <<_END
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#### start ks-addon.cfg
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uuid=\$(uuidgen)
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cat >/etc/sysconfig/network-scripts/ifcfg-$OAM_DEV <<END
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UUID=\$uuid
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DEVICE=$OAM_DEV
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NAME=$OAM_DEV
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TYPE=Ethernet
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PROXY_METHOD=none
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BROWSER_ONLY=no
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BOOTPROTO=dhcp
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DEFROUTE=yes
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IPV4_FAILURE_FATAL=no
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IPV6INIT=yes
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IPV6_AUTOCONF=no
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IPV6_DEFROUTE=yes
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IPV6_FAILURE_FATAL=no
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IPV6_ADDR_GEN_MODE=stable-privacy
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ONBOOT=yes
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DHCPV6C=$DHCPV6C
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END
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#### end ks-addon.cfg
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_END
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cmd+=(-a "$ks_addon")
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# execute update_iso.sh
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echo "${cmd[@]}"
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"${cmd[@]}" || exit 1
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# create a blank image file
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rm -f "$IMG_FILE.tmp"
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cmd=(qemu-img create "$IMG_FILE.tmp" -f qcow2 "$IMG_SIZE")
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echo "${cmd[@]}"
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"${cmd[@]}" || exit 1
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# QEMU unsets echo in console terminal -- undo that before exiting
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# (see "cleanup" above)
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ENABLE_TTY_ECHO=1
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# run the installer in QEMU
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cmd=(
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"$KVM"
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"${KVM_OPTS[@]}"
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-m 8192
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-drive file="$IMG_FILE.tmp",if=ide
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-cdrom "$auto_iso"
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-boot d
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-no-reboot
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-nographic
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-smp 4
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-chardev stdio,id=serial,signal=on
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)
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echo "${cmd[@]}"
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"${cmd[@]}" 2>&1 | tee $TEMPFILES_DIR/kvm.log
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if [[ ${PIPESTATUS[0]} -ne 0 || ${PIPESTATUS[1]} -ne 0 ]] ; then
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die "qemu: installation failed"
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fi
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# Step 2: Convert the ISO to IMG
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if [ $PART -ne 1 ]; then
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INSTALL_ISO_TO_DISK_IMAGE=$MY_REPO/stx/extras.ND/scripts/install_iso_to_disk_image.sh
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if [ ! -e "/dev/loop-control" -o ! -e "/dev/kvm" ]; then
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CMD="cd $MY_WORKSPACE/export; \
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$INSTALL_ISO_TO_DISK_IMAGE bootimage_auto.iso $DEST_IMG"
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if [ "$HOSTNAME" == "yow-cgts3-centos7" ]; then
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echo "Attempting to run kvm_iso_to_img on yow-cgts3-lx"
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ssh -o StrictHostKeyChecking=no yow-cgts3-lx "$CMD"
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if [ $? -ne 0 ]; then
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echo "Failed to run update-efiboot-image on yow-cgts3-lx"
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fi
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fi
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if [ "$HOSTNAME" == "yow-cgts2-centos7" ]; then
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echo "Attempting to run kvm_iso_to_img on yow-cgts2-lx"
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ssh -o StrictHostKeyChecking=no yow-cgts2-lx "$CMD"
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if [ $? -ne 0 ]; then
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echo "Failed to run update-efiboot-image on yow-cgts2-lx"
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fi
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fi
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if [ ! -f "$MY_WORKSPACE/export/$DEST_IMG" ]; then
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printf "\n"
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printf "****************************************************************** \n"
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printf "No kvm and/or loop device on this machine. To complete the build \n"
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printf "please copy '$MY_WORKSPACE/export/bootimage_auto.iso' to a machine \n"
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printf "that supports kvm and loop devices and run ... \n"
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printf " $INSTALL_ISO_TO_DISK_IMAGE bootimage_auto.iso $DEST_IMG\n"
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printf "****************************************************************** \n"
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exit 1
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fi
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fi
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if [ ! -f "$MY_WORKSPACE/export/$DEST_IMG" ]; then
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(
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cd $MY_WORKSPACE/export
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$INSTALL_ISO_TO_DISK_IMAGE bootimage_auto.iso $DEST_IMG
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exit $?
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)
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fi
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# QEMU exits with status=0 even when killed by a signal. Check its output
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# for a known message to detect this case
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if tail "$TEMPFILES_DIR/kvm.log" | grep -q -F "qemu: terminating on signal" ; then
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die "qemu terminated by a signal"
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fi
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# rename tmp image file to the final name
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mv -f "$IMG_FILE.tmp" "$IMG_FILE" || exit 1
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# done
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echo "
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Created $IMG_FILE
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To use this image, type:
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$KVM ${KVM_OPTS[@]} -m 16384 -drive file=$IMG_FILE,if=ide -boot c -nographic -smp 4
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"
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