487 lines
19 KiB
Bash
Executable file
487 lines
19 KiB
Bash
Executable file
#!/bin/bash
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#
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# Copyright 2012 Hewlett-Packard Development Company, L.P.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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set -eE
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# Prevent perl from complaining a lot, but also remove any unexpected side-effects
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# of $LANG varying between build hosts
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export LANG=C
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# Store our initial environment and command line args for later
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export DIB_ARGS="$@"
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export DIB_ENV=$(export | grep ' DIB_.*=')
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SCRIPTNAME=$(basename $0)
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# this is a bit tricky to handle the case of being installed with "pip
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# -e" (i.e. setuptools develop mode) and a regular install
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#
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# When installed normally, the scripts are installed into /usr/bin/
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# and the other bits specified in "data_files" into
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# /usr/share/diskimage-builder/[elements|lib|scripts] (if you're in a
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# virtualenv, modulo all this with the right prefix-paths)
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#
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# When installed with -e, the scripts will still be installed into
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# /usr/bin, but the data_files will *not* be installed. Because the
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# "diskimage_builder" python module will be linked to the source repo
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# (that's the idea of develop mode) what we can do is assume the
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# following:
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#
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# - if the python module directory has a "bin" directory, then it must
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# be the source repo and hence we have been installed via develop
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# mode. Thus setup ourselves to use the scripts from the source
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# repo.
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#
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# - otherwise, try to find libraires and elements have been installed
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# into the system paths via a "normal" pip install
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#
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# - lastly, we might be running completely uninstalled.
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# XXX : this might cause problems at some point; we might need to "cd"
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# so python can find things, or use pip -e.
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#
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# This means if you want to develop your elements, then "pip -e" is
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# the way to go ... your disk-image-create runs will be referencing
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# the scripts from the editable source repo. But note that changes to
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# anything in bin/ will *not* be applied; those files have been
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# statically copied in during install. You'll need to iterate with
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# another run of "pip install -e" if you're actually working on those
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# bin/* scripts.
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export SCRIPT_HOME=$(dirname $(readlink -f $0))
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_DIB_PYTHON_INSTALL=$(python -c '
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import inspect
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import os
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import sys
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# this can fail if we are being run with pwd outside the source
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# directory *and* have not been installed
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try:
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import diskimage_builder
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except ImportError:
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sys.exit(0)
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print(os.path.dirname(inspect.getfile(diskimage_builder)))')
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if [ -n "$_DIB_PYTHON_INSTALL" -a -d $_DIB_PYTHON_INSTALL/../bin ]; then
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# we have been installed with "pip -e"
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export SCRIPT_HOME=$_DIB_PYTHON_INSTALL/../bin
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export _PREFIX=$SCRIPT_HOME/..
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elif [ -d $SCRIPT_HOME/../share/diskimage-builder ]; then
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# we have been installed in /usr
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export _PREFIX=$SCRIPT_HOME/../share/diskimage-builder
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else
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# we have not been installed in any way
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export _PREFIX=$SCRIPT_HOME/..
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fi
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export _LIB=$_PREFIX/lib
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source $_LIB/die
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IS_RAMDISK=0
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if [ "$SCRIPTNAME" == "ramdisk-image-create" ]; then
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IS_RAMDISK=1
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fi
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function show_options () {
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echo "Usage: ${SCRIPTNAME} [OPTION]... [ELEMENT]..."
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echo
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echo "Options:"
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echo " -a i386|amd64|armhf -- set the architecture of the image(default amd64)"
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echo " -o imagename -- set the imagename of the output image file(default image)"
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echo " -t qcow2,tar,vhd,docker,aci,raw -- set the image types of the output image files (default qcow2)"
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echo " File types should be comma separated. VHD outputting requires the vhd-util"
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echo " executable be in your PATH. ACI outputting requires the ACI_MANIFEST "
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echo " environment variable be a path to a manifest file."
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echo " -x -- turn on tracing (use -x -x for very detailed tracing)"
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echo " -u -- uncompressed; do not compress the image - larger but faster"
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echo " -c -- clear environment before starting work"
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echo " --image-size size -- image size in GB for the created image"
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echo " --image-cache directory -- location for cached images(default ~/.cache/image-create)"
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echo " --max-online-resize size -- max number of filesystem blocks to support when resizing."
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echo " Useful if you want a really large root partition when the image is deployed."
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echo " Using a very large value may run into a known bug in resize2fs."
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echo " Setting the value to 274877906944 will get you a 1PB root file system."
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echo " Making this value unnecessarily large will consume extra disk space "
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echo " on the root partition with extra file system inodes."
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echo " --min-tmpfs size -- minimum size in GB needed in tmpfs to build the image"
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echo " --mkfs-options -- option flags to be passed directly to mkfs."
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echo " Options should be passed as a single string value."
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echo " --no-tmpfs -- do not use tmpfs to speed image build"
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echo " --offline -- do not update cached resources"
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echo " --qemu-img-options -- option flags to be passed directly to qemu-img."
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echo " Options need to be comma separated, and follow the key=value pattern."
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echo " --root-label label -- label for the root filesystem. Defaults to 'cloudimg-rootfs'."
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echo " --ramdisk-element -- specify the main element to be used for building ramdisks."
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echo " Defaults to 'ramdisk'. Should be set to 'dracut-ramdisk' for platforms such"
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echo " as RHEL and CentOS that do not package busybox."
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echo " --install-type -- specify the default installation type. Defaults to 'source'. Set to 'package' to use package based installations by default."
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echo " --docker-target -- specify the repo and tag to use if the output type is docker. Defaults to the value of output imagename"
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if [ "$IS_RAMDISK" == "0" ]; then
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echo " -n skip the default inclusion of the 'base' element"
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echo " -p package[,package,package] -- list of packages to install in the image"
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fi
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echo " -h|--help -- display this help and exit"
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echo " --version -- display version and exit"
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echo
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echo "ELEMENTS_PATH will allow you to specify multiple locations for the elements."
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echo
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echo "NOTE: At least one distribution root element must be specified."
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echo
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echo "NOTE: If using the VHD output format you need to have a patched version of vhd-util installed for the image"
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echo " to be bootable. The patch is available here: https://github.com/emonty/vhd-util/blob/master/debian/patches/citrix"
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echo " and a PPA with the patched tool is available here: https://launchpad.net/~openstack-ci-core/+archive/ubuntu/vhd-util"
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echo
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echo "Examples:"
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if [ "$IS_RAMDISK" == "0" ]; then
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echo " ${SCRIPTNAME} -a amd64 -o ubuntu-amd64 vm ubuntu"
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echo " export ELEMENTS_PATH=~/source/tripleo-image-elements/elements"
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echo " ${SCRIPTNAME} -a amd64 -o fedora-amd64-heat-cfntools vm fedora heat-cfntools"
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else
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echo " ${SCRIPTNAME} -a amd64 -o fedora-deploy deploy fedora"
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echo " ${SCRIPTNAME} -a amd64 -o ubuntu-ramdisk ramdisk ubuntu"
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fi
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}
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function show_version() {
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if [ -n "$_DIB_PYTHON_INSTALL" ]; then
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python -c "from diskimage_builder import version; print(version.version_info.version_string())"
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else
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echo "diskimage-builder is not installed."
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fi
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}
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INSTALL_PACKAGES=""
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IMAGE_TYPES=("qcow2")
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COMPRESS_IMAGE="true"
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export DIB_ROOT_LABEL=""
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DIB_DEFAULT_INSTALLTYPE=${DIB_DEFAULT_INSTALLTYPE:-"source"}
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MKFS_OPTS=""
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ACI_MANIFEST=${ACI_MANIFEST:-}
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DOCKER_TARGET=""
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TEMP=`getopt -o a:ho:t:xucnp: -l no-tmpfs,offline,help,version,min-tmpfs:,image-size:,image-cache:,max-online-resize:,mkfs-options:,qemu-img-options:,ramdisk-element:,root-label:,install-type:,docker-target: -n $SCRIPTNAME -- "$@"`
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if [ $? -ne 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi
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# Note the quotes around `$TEMP': they are essential!
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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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-a) export ARCH=$2; shift 2 ;;
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-o) export IMAGE_NAME=$2; shift 2 ;;
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-t) IFS="," read -a IMAGE_TYPES <<< "$2"; export IMAGE_TYPES ; shift 2 ;;
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-h|--help) show_options; exit 0;;
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--version) show_version; exit 0;;
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-x) shift; export DIB_DEBUG_TRACE=$(( $DIB_DEBUG_TRACE + 1 )); set -x;;
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-u) shift; export COMPRESS_IMAGE="";;
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-c) shift ; export CLEAR_ENV=1;;
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-n) shift; export SKIP_BASE="1";;
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-p) IFS="," read -a INSTALL_PACKAGES <<< "$2"; export INSTALL_PACKAGES ; shift 2 ;;
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--image-size) export DIB_IMAGE_SIZE=$2; shift 2;;
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--image-cache) export DIB_IMAGE_CACHE=$2; shift 2;;
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--max-online-resize) export MAX_ONLINE_RESIZE=$2; shift 2;;
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--mkfs-options) MKFS_OPTS=$2; shift 2;;
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--min-tmpfs) export DIB_MIN_TMPFS=$2; shift 2;;
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--no-tmpfs) shift; export DIB_NO_TMPFS=1;;
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--offline) shift; export DIB_OFFLINE=1;;
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--qemu-img-options) QEMU_IMG_OPTIONS=$2; shift 2;;
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--root-label) export DIB_ROOT_LABEL=$2; shift 2;;
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--ramdisk-element) RAMDISK_ELEMENT=$2; shift 2;;
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--install-type) DIB_DEFAULT_INSTALLTYPE=$2; shift 2;;
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--docker-target) export DOCKER_TARGET=$2; shift 2 ;;
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--) shift ; break ;;
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*) echo "Internal error!" ; exit 1 ;;
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esac
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done
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export DIB_IMAGE_CACHE=${DIB_IMAGE_CACHE:-~/.cache/image-create}
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mkdir -p $DIB_IMAGE_CACHE
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if [ "$CLEAR_ENV" = "1" -a "$HOME" != "" ]; then
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echo "Re-execing to clear environment."
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echo "(note this will prevent much of the local_config element from working)"
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exec -c $0 "$@"
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fi
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# Display the current file/function/line in the debug output
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function _ps4 {
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IFS=" " called=($(caller 0))
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local f=$(readlink -f ${called[2]})
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printf "%-80s " "$f:${called[1]}:${called[0]}"
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}
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export -f _ps4
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export PS4='+ $(_ps4): '
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source $_LIB/img-defaults
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source $_LIB/common-functions
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source $_LIB/img-functions
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if [ "$IS_RAMDISK" == "1" ]; then
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source $_LIB/ramdisk-defaults
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source $_LIB/ramdisk-functions
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fi
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# If no elements are specified theres no way we can succeed
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if [ -z "$*" ]; then
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echo "ERROR: At least one distribution root element must be specified"
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exit 1
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fi
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arg_to_elements "$@"
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if [ "${#IMAGE_TYPES[@]}" = "1" ]; then
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export IMAGE_NAME=${IMAGE_NAME%%\.${IMAGE_TYPES[0]}}
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fi
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# Check for required tools early on
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for X in ${!IMAGE_TYPES[@]}; do
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case "${IMAGE_TYPES[$X]}" in
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qcow2)
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if [ -z "$(which qemu-img)" ]; then
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echo "qcow2 output format specified but qemu-img executable not found."
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exit 1
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fi
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;;
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vhd)
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if [ -z "$(which vhd-util)" ]; then
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echo "vhd output format specified but no vhd-util executable found."
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exit 1
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fi
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;;
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docker)
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if [ -z "$(which docker)" ]; then
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echo "docker output format specified but no docker executable found."
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exit 1
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fi
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if [ -z "$DOCKER_TARGET" ]; then
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echo "Please set --docker-target."
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exit 1
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fi
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;;
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esac
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done
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# NOTE: fstrim is on most all recent systems. It is provided by the util-linux
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# package.
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if [[ -z "$(which fstrim)" ]]; then
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echo "fstrim utility is not found. This is provided by util-linux package"
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echo "Please check your PATH variable is set correctly"
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exit 1
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fi
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# NOTE: Tuning the rootfs uuid works only for ext filesystems.
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# Rely on the below environment variable only for ext filesystems.
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export DIB_IMAGE_ROOT_FS_UUID=$(uuidgen -r)
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if echo "$FS_TYPE" | grep -q "^ext" && [ -z "${DIB_IMAGE_ROOT_FS_UUID}" ]; then
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echo "ext filesystem detected but no DIB_IMAGE_ROOT_FS_UUID found."
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echo "Is the uuidgen utility installed on your system?"
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exit 1
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fi
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# FS_TYPE isn't available until after we source img-defaults
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if [ -z "$DIB_ROOT_LABEL" ]; then
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# NOTE(bnemec): XFS has a limit of 12 characters for filesystem labels
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# Not changing the default for other filesystems to maintain backwards compatibility
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if [ "$FS_TYPE" = "xfs" ]; then
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DIB_ROOT_LABEL="img-rootfs"
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else
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DIB_ROOT_LABEL="cloudimg-rootfs"
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fi
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fi
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# xattr support cannot be relied upon with tmpfs builds
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# some kernels supoprt it, some don't
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if [[ -n "${GENTOO_PROFILE}" ]]; then
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if [[ "${GENTOO_PROFILE}" =~ "hardened" ]]; then
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echo 'disabling tmpfs for gentoo hardened build'
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export DIB_NO_TMPFS=1
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fi
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fi
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mk_build_dir
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create_base
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# This variable needs to be propagated into the chroot
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mkdir -p $TMP_HOOKS_PATH/environment.d
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echo "export DIB_DEFAULT_INSTALLTYPE=\${DIB_DEFAULT_INSTALLTYPE:-\"${DIB_DEFAULT_INSTALLTYPE}\"}" > $TMP_HOOKS_PATH/environment.d/11-dib-install-type.bash
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run_d extra-data
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# Run pre-install scripts. These do things that prepare the chroot for package installs
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run_d_in_target pre-install
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do_extra_package_install
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# Call install scripts to pull in the software users want.
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run_d_in_target install
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run_d_in_target post-install
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# ensure we do not have a lost+found directory in the root folder
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# that could cause copy to fail (it will be created again later
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# when creating the file system, if it needs such directory)
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if [ -e "$TMP_BUILD_DIR/mnt/lost+found" ]; then
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sudo rm -rf "$TMP_BUILD_DIR/mnt/lost+found"
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fi
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# Free up /mnt
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unmount_image
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mv $TMP_BUILD_DIR/mnt $TMP_BUILD_DIR/built
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# save xtrace state, as we want to turn it off to avoid spamming the
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# logs with du output below.
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xtrace=$(set +o | grep xtrace)
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if [ -n "$DIB_IMAGE_SIZE" ]; then
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du_size=$(echo "$DIB_IMAGE_SIZE" | awk '{printf("%d\n",$1 * 1024 *1024)}')
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else
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set +o xtrace
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echo "Calculating image size (this may take a minute)..."
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du_output=$(sudo du -a -c -x ${TMP_BUILD_DIR}/built)
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# the last line is the total size from "-c".
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# scale this by 0.6 to create a slightly bigger image
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du_size=$(echo "$du_output" | tail -n1 | cut -f1 | \
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awk '{print int($1 / 0.6)}')
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$xtrace
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fi
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if [[ "${DIB_SHOW_IMAGE_USAGE:-0}" != 0 ]]; then
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set +o xtrace
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if [ -z "$du_output" ]; then
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du_output=$(sudo du -a -c -x ${TMP_BUILD_DIR}/built)
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fi
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du_output_show="sort -nr |
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numfmt --to=iec-i --padding=7
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--suffix=B --field=1 --from-unit=1024"
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# by default show the 10MiB and greater files & directories -- a
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# dir with lots of little files will still show up, but this helps
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# signal:noise ratio
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if [[ ${DIB_SHOW_IMAGE_USAGE_FULL:-0} == 0 ]]; then
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# numfmt will start giving a decimal place when < 10MiB
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du_output_show+="| egrep 'MiB|GiB|TiB|PiB' | grep -v '\..MiB'"
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echo "================================="
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echo "Image size report (files > 10MiB)"
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echo "================================="
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else
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echo "================="
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echo "Image size report"
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echo "================="
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fi
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eval ${du_output_show} <<< "$du_output"
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echo
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echo "===== end image size report ====="
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echo
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$xtrace
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fi
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if [ "$FS_TYPE" = "ext4" ] ; then
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# Very conservative to handle images being resized a lot
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# We set journal size to 64M so our journal is large enough when we
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# perform an FS resize.
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MKFS_OPTS="-i 4096 -J size=64 $MKFS_OPTS"
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# Grow the image size to account for the journal, only if the user
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# has not asked for a specific size.
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if [ -z "$DIB_IMAGE_SIZE" ]; then
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du_size=$(( $du_size + 65536 ))
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fi
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fi
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# Rounding down size so that is is a multiple of 64, works around a bug in
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# qemu-img that may occur when compressing raw images that aren't a multiple
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# of 64k. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1180021
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du_size=$(echo "$du_size" | awk ' { if ($1 % 64 != 0) print $1 + 64 - ( $1 % 64); else print $1; } ')
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truncate -s${du_size}K $TMP_IMAGE_PATH
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if [ -n "$MAX_ONLINE_RESIZE" ]; then
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MKFS_OPTS="-E resize=$MAX_ONLINE_RESIZE $MKFS_OPTS"
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fi
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LOOPDEV=$(sudo losetup --show -f $TMP_IMAGE_PATH)
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export EXTRA_UNMOUNT="detach_loopback $LOOPDEV"
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export IMAGE_BLOCK_DEVICE=$LOOPDEV
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eval_run_d block-device "IMAGE_BLOCK_DEVICE="
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sudo mkfs $MKFS_OPTS -t $FS_TYPE -L ${DIB_ROOT_LABEL} ${IMAGE_BLOCK_DEVICE}
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# Tuning the rootfs uuid works only for ext filesystems.
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if echo "$FS_TYPE" | grep -q "^ext"; then
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sudo tune2fs ${IMAGE_BLOCK_DEVICE} -U ${DIB_IMAGE_ROOT_FS_UUID}
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fi
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mkdir $TMP_BUILD_DIR/mnt
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sudo mount ${IMAGE_BLOCK_DEVICE} $TMP_BUILD_DIR/mnt
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sudo mv -t $TMP_BUILD_DIR/mnt ${TMP_BUILD_DIR}/built/*
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mount_proc_dev_sys
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run_d_in_target finalise
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finalise_base
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for X in ${!IMAGE_TYPES[@]} ; do
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if [[ " tar aci " =~ "${IMAGE_TYPES[$X]}" ]]; then
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if [ "${IMAGE_TYPES[$X]}" = "aci" ]; then
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sudo tar -C ${TMP_BUILD_DIR}/mnt -cf $IMAGE_NAME.aci --exclude ./sys \
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--exclude ./proc --xattrs --xattrs-include=\* \
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--transform 's,^.,rootfs,S' .
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if [ -n "$ACI_MANIFEST" ]; then
|
|
cp $ACI_MANIFEST ${TMP_BUILD_DIR}/manifest
|
|
sudo tar -C ${TMP_BUILD_DIR} --append -f $IMAGE_NAME.aci manifest
|
|
else
|
|
echo "No ACI_MANIFEST specified. An ACI_MANIFEST must be specified for"
|
|
echo " this image to be usable."
|
|
fi
|
|
else
|
|
sudo tar -C ${TMP_BUILD_DIR}/mnt -cf $IMAGE_NAME.tar --exclude ./sys \
|
|
--exclude ./proc --xattrs --xattrs-include=\* .
|
|
fi
|
|
sudo chown $USER: $IMAGE_NAME.${IMAGE_TYPES[$X]}
|
|
unset IMAGE_TYPES[$X]
|
|
elif [ "${IMAGE_TYPES[$X]}" == "docker" ]; then
|
|
sudo tar -C ${TMP_BUILD_DIR}/mnt -cf - --exclude ./sys \
|
|
--exclude ./proc --xattrs --xattrs-include=\* . \
|
|
| sudo docker import - $DOCKER_TARGET
|
|
unset IMAGE_TYPES[$X]
|
|
fi
|
|
done
|
|
|
|
# Prep filesystem by discarding all unused space
|
|
fstrim_image
|
|
|
|
# Unmount and cleanup the /mnt and /build subdirectories, to save
|
|
# space before converting the image to some other format.
|
|
unmount_image
|
|
cleanup_build_dir
|
|
|
|
has_raw_type=
|
|
if [ "$IS_RAMDISK" == "0" ]; then
|
|
for IMAGE_TYPE in ${IMAGE_TYPES[@]} ; do
|
|
# We have to do raw last because it is destructive
|
|
if [ "$IMAGE_TYPE" = "raw" ]; then
|
|
has_raw_type=1
|
|
else
|
|
compress_and_save_image $IMAGE_NAME.$IMAGE_TYPE
|
|
fi
|
|
done
|
|
fi
|
|
if [ -n "$has_raw_type" ]; then
|
|
IMAGE_TYPE="raw"
|
|
compress_and_save_image $IMAGE_NAME.$IMAGE_TYPE
|
|
fi
|
|
|
|
# Remove the leftovers, i.e. the temporary image directory.
|
|
cleanup_image_dir
|
|
|
|
case "$IMAGE_ELEMENT" in
|
|
*ironic-agent*)
|
|
rm $IMAGE_NAME.$IMAGE_TYPE
|
|
;;
|
|
esac
|
|
|
|
# All done!
|
|
trap EXIT
|