dbfca7a816
When compressing an image, this is done in the same dir where the raw image resides, doubling the amount of space needed (scarce when using tmpfs), and then it's moved to the .cache folder in disk. Combining these two functions, we reduce the amount of space needed in the tmpfs partition (when in use), and the compressed image is created directly on the .cache folder disk, so there is no need to move the compressed image after the process into disk. Change-Id: I451d24bdd6fa0983414244135dff5e96c0549833
155 lines
4.7 KiB
Bash
Executable File
155 lines
4.7 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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# All Rights Reserved.
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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=$(export)
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SCRIPTNAME=$(basename $0)
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SCRIPT_HOME=$(dirname $0)
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if [ -d $SCRIPT_HOME/../share/diskimage-builder ]
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then
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export _PREFIX=$SCRIPT_HOME/../share/diskimage-builder
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else
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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 "Options:"
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echo " -a i386|amd64|armhf -- set the architecture of the image"
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echo " -o filename -- set the name of the output file"
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echo " -x -- turn on 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 " --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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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
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echo "ELEMENTS_PATH will allow you to specify multiple locations for the elements."
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exit 0
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}
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INSTALL_PACKAGES=""
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COMPRESS_IMAGE="true"
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TEMP=`getopt -o a:ho:xucnp: -l no-tmpfs,offline -n $SCRIPTNAME -- "$@"`
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if [ $? != 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi
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# Note the quotes around `$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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-h) show_options;;
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-x) shift; 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 <<< "$2"; export INSTALL_PACKAGES ; shift 2 ;;
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--no-tmpfs) shift; export DIB_NO_TMPFS=1;;
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--offline) shift; export DIB_OFFLINE=1;;
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--) shift ; break ;;
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*) echo "Internal error!" ; exit 1 ;;
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esac
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done
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if [ "$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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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 $_LIB/ramdisk-functions
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fi
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arg_to_elements "$@"
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IMAGE_NAME=${IMAGE_NAME%%\.${IMAGE_TYPE}}
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mk_build_dir
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create_base
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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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prepare_first_boot
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# Free up /mnt
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unmount_image
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mv $TMP_BUILD_DIR/mnt $TMP_BUILD_DIR/built
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MKFS_OPTS=""
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if [ -n "$DIB_IMAGE_SIZE" ]; then
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truncate -s${DIB_IMAGE_SIZE}G $TMP_IMAGE_PATH
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else
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# in kb*0.75 - underreport to get a slightly bigger device
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_NEEDED_SIZE=$(sudo du --block-size=750 -x -s ${TMP_BUILD_DIR}/built | awk ' { print $1 } ')
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truncate -s${_NEEDED_SIZE}K $TMP_IMAGE_PATH
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if [ "$FS_TYPE" = "ext4" ] ; then
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# Very conservative to handle images being resized a lot
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MKFS_OPTS="-i 4096"
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fi
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fi
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# allow up to 1PB of 4KB blocks.
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MKFS_OPTS="$MKFS_OPTS -E resize=274877906944"
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LOOPDEV=$(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 cloudimg-rootfs ${IMAGE_BLOCK_DEVICE}
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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 ${TMP_BUILD_DIR}/built/*
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mount_proc_dev_sys
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run_d_in_target finalise
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finalise_base
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unmount_image
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if [ "$IS_RAMDISK" == "0" ]; then
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compress_and_save_image $IMAGE_NAME.$IMAGE_TYPE
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else
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remove_image
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fi
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