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54f774d931
To make it possible to plop a CoreOS install into a simple single-filesystem image for use as a container some things like configuring bootloaders need to be skipped.
80 lines
2.8 KiB
Bash
Executable File
80 lines
2.8 KiB
Bash
Executable File
# Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
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# Copyright (c) 2013 The CoreOS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# The GCC package includes both its libraries and the compiler.
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# In prod images we only need the shared libraries.
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emerge_prod_gcc() {
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local root_fs_dir="$1"; shift
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local mask="${INSTALL_MASK:-$(portageq-$BOARD envvar PROD_INSTALL_MASK)}"
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test -n "$mask" || die "PROD_INSTALL_MASK not defined"
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mask="${mask}
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/usr/bin
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/usr/*/gcc-bin
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/usr/lib/gcc/*/*/*.o
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/usr/lib/gcc/*/*/include
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/usr/lib/gcc/*/*/include-fixed
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/usr/lib/gcc/*/*/plugin
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/usr/libexec
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/usr/share/gcc-data/*/*/c89
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/usr/share/gcc-data/*/*/c99
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/usr/share/gcc-data/*/*/python"
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INSTALL_MASK="${mask}" emerge_to_image "${root_fs_dir}" --nodeps sys-devel/gcc "$@"
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}
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create_prod_image() {
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local image_name="$1"
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local disk_layout="$2"
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local update_group="$3"
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info "Building production image ${image_name}"
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local root_fs_dir="${BUILD_DIR}/rootfs"
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start_image "${image_name}" "${disk_layout}" "${root_fs_dir}"
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# Install minimal GCC (libs only) and then everything else
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emerge_prod_gcc "${root_fs_dir}"
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emerge_to_image "${root_fs_dir}" coreos-base/coreos
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# clean-ups of things we do not need
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sudo rm ${root_fs_dir}/etc/csh.env
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sudo rm -rf ${root_fs_dir}/var/db/pkg
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sudo rm ${root_fs_dir}/var/db/Makefile
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sudo rm ${root_fs_dir}/etc/locale.gen
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sudo rm -rf ${root_fs_dir}/etc/lvm/
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# Move the ld.so configs into /usr so they can be symlinked from /
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sudo mv ${root_fs_dir}/etc/ld.so.conf ${root_fs_dir}/usr/lib
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sudo mv ${root_fs_dir}/etc/ld.so.conf.d ${root_fs_dir}/usr/lib
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sudo ln --symbolic ../usr/lib/ld.so.conf ${root_fs_dir}/etc/ld.so.conf
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# Add a tmpfiles rule that symlink ld.so.conf from /usr into /
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sudo tee "${root_fs_dir}/usr/lib64/tmpfiles.d/baselayout-ldso.conf" \
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> /dev/null <<EOF
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L /etc/ld.so.conf - - - - ../usr/lib/ld.so.conf
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EOF
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# clear them out explicitly, so this fails if something else gets dropped
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# into xinetd.d
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sudo rm ${root_fs_dir}/etc/xinetd.d/rsyncd
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sudo rmdir ${root_fs_dir}/etc/xinetd.d
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# Only try to disable rw on /usr if there is a /usr partition
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local disable_read_write=${FLAGS_enable_rootfs_verification}
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if ! mountpoint -q "${root_fs_dir}/usr"; then
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disable_read_write=${FLAGS_FALSE}
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fi
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finish_image "${disk_layout}" "${root_fs_dir}" "${update_group}"
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# Make the filesystem un-mountable as read-write.
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if [[ ${disable_read_write} -eq ${FLAGS_TRUE} ]]; then
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"${BUILD_LIBRARY_DIR}/disk_util" --disk_layout="${disk_layout}" \
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tune --disable2fs_rw "${BUILD_DIR}/${image_name}" "USR-A"
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fi
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}
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