diskimage-builder/elements/yum-minimal/root.d/08-yum-chroot

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#!/bin/bash
#
# Copyright 2015 Hewlett-Packard Development Company, L.P.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
if [ "${DIB_DEBUG_TRACE:-0}" -gt 0 ]; then
set -x
fi
set -eu
set -o pipefail
if [ -f ${TARGET_ROOT}/.extra_settings ] ; then
. ${TARGET_ROOT}/.extra_settings
fi
ARCH=${ARCH:-x86_64}
if [ $ARCH = amd64 ]; then
ARCH=x86_64
fi
# Calling elements will need to set DISTRO_NAME and DIB_RELEASE
DIB_YUMCHROOT_EXTRA_ARGS=${DIB_YUMCHROOT_EXTRA_ARGS:-}
YUMCHROOT_TARBALL=$DIB_IMAGE_CACHE/yumchroot-${DISTRO_NAME}-${DIB_RELEASE}-${ARCH}.tar.gz
# TODO Maybe deal with DIB_DISTRIBUTION_MIRROR
http_proxy=${http_proxy:-}
YUM=${YUM:-yum}
WORKING=$(mktemp --tmpdir=${TMP_DIR:-/tmp} -d)
EACTION="rm -r $WORKING"
trap "$EACTION" EXIT
YUM_CACHE=$DIB_IMAGE_CACHE/yum
# install the [fedora|centos]-[release|repo] packages inside the
# chroot, which are needed to bootstrap yum/dnf
#
# note this runs outside the chroot, where we're assuming the platform
# has yum/yumdownloader
function _install_repos {
yumdownloader \
--releasever=$DIB_RELEASE \
--setopt=reposdir=$TMP_HOOKS_PATH/yum.repos.d \
--destdir=$WORKING \
${DISTRO_NAME}-release
RELEASE_RPMS="${DISTRO_NAME}-release"
# after fedora21, this is split into into a separate -repos
# package
if [ $DISTRO_NAME = fedora ] ; then
yumdownloader \
--releasever=$DIB_RELEASE \
--setopt=reposdir=$TMP_HOOKS_PATH/yum.repos.d \
--destdir=$WORKING \
${DISTRO_NAME}-repos
RELEASE_RPMS="${RELEASE_RPMS} ${DISTRO_NAME}-repos"
fi
# --nodeps works around these wanting /bin/sh in some fedora
# releases, see rhbz#1265873
sudo rpm --root $TARGET_ROOT --nodeps -ivh $WORKING/*rpm
}
# _install_pkg_manager packages...
#
# install the package manager packages. This is done outside the chroot
# and with yum from the build system.
# TODO: one day build systems will be dnf only, but we don't handle
# that right now
function _install_pkg_manager {
# Install into the chroot, using the gpg keys from the release
# rpm's installed in the chroot
sudo sed -i "s,/etc/pki/rpm-gpg,$TARGET_ROOT/etc/pki/rpm-gpg,g" \
$TARGET_ROOT/etc/yum.repos.d/*repo
sudo yum -y \
--setopt=cachedir=$YUM_CACHE/$ARCH/$DIB_RELEASE \
--setopt=reposdir=$TARGET_ROOT/etc/yum.repos.d \
--installroot $TARGET_ROOT \
install $@
# Set gpg path back because subsequent actions will take place in
# the chroot
sudo sed -i "s,$TARGET_ROOT/etc/pki/rpm-gpg,/etc/pki/rpm-gpg,g" \
$TARGET_ROOT/etc/yum.repos.d/*repo
}
if [ -n "$DIB_OFFLINE" -o -n "${DIB_YUMCHROOT_USE_CACHE:-}" ] && [ -f $YUMCHROOT_TARBALL ] ; then
echo $YUMCHROOT_TARBALL found in cache. Using.
sudo tar -C $TARGET_ROOT --numeric-owner -xzf $YUMCHROOT_TARBALL
else
# initalize rpmdb
sudo mkdir -p $TARGET_ROOT/var/lib/rpm
sudo rpm --root $TARGET_ROOT --initdb
# this makes sure that running yum/dnf in the chroot it can get
# out to download stuff
sudo mkdir $TARGET_ROOT/etc
sudo cp /etc/resolv.conf $TARGET_ROOT/etc/resolv.conf
# Bind mount the external yum cache inside the chroot. Same logic
# as in the yum element to provide for yum caching copied here
# because the sequencing is wrong otherwise
sudo mkdir -p $TMP_MOUNT_PATH/tmp/yum
sudo mount --bind $YUM_CACHE $TMP_MOUNT_PATH/tmp/yum
_install_repos
if [ $DIB_RELEASE -ge 22 ]; then
# install dnf for >= f22
_install_pkg_manager dnf dnf-plugins-core yum
else
_install_pkg_manager yum
fi
# bootstrap the environment within the chroot
sudo chroot $TARGET_ROOT ${YUM} makecache
sudo chroot $TARGET_ROOT ${YUM} -y \
--setopt=cachedir=/tmp/yum/$ARCH/$DIB_RELEASE \
install passwd findutils sudo util-linux-ng
# cleanup
sudo rm $TARGET_ROOT/etc/resolv.conf
sudo umount $TMP_MOUNT_PATH/tmp/yum
# RPM doesn't know whether files have been changed since install
# At this point though, we know for certain that we have changed no
# config files, so anything marked .rpmnew is just a bug.
for newfile in $(sudo find $TARGET_ROOT -type f -name '*rpmnew') ; do
sudo mv $newfile $(echo $newfile | sed 's/.rpmnew$//')
done
echo Caching result in $YUMCHROOT_TARBALL
sudo tar --numeric-owner \
-C $TARGET_ROOT \
-zcf $YUMCHROOT_TARBALL --exclude='./tmp/*' .
fi
sudo rm -f ${TARGET_ROOT}/.extra_settings