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168 lines
6.3 KiB
Bash
Executable File
168 lines
6.3 KiB
Bash
Executable File
#!/bin/bash
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#
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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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#
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# This uses Gentoo's catalyst for very thoroughly building images from
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# scratch. Using images based on this will eliminate some of the hackery
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# in make_chroot.sh for building up the sdk from a stock stage3 tarball.
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#
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# For reference the procedure it performs is this:
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#
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# 1. snapshot: Grab a snapshot of portage-stable. Note that overalys are
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# not snapshotted.
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# 2. stage1: Using a "seed" tarball as a build environment, build a
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# minimal root file system into a clean directory using ROOT=...
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# and USE=-* The restricted USE flags are key be small and avoid
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# circular dependencies.
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# 3. stage2: Run portage-stable/scripts/bootstrap.sh
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# This rebuilds the toolchain. Probably not strictly necessary most of
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# the time but does super-duper-promise that the toolchain isn't linked
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# to or otherwise influenced by whatever was in the "seed" tarball.
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# 4. stage3: Run emerge -e system to rebuild everything using the fresh
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# toolchain using the normal USE flags provided by the profile. This
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# will also pull in assorted base system packages that weren't included
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# in the minimal environment stage1 created.
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# 5. stage4: Install any extra packages or other desired tweaks. For the
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# sdk we just install all the packages normally make_chroot.sh does.
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#
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# Usage: bootstrap_sdk [stage1 stage2 etc]
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# By default all four stages will be built using the latest stage4 as a seed.
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SCRIPT_ROOT=$(dirname $(readlink -f "$0"))
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. "${SCRIPT_ROOT}/common.sh" || exit 1
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TYPE="flatcar-sdk"
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. "${BUILD_LIBRARY_DIR}/catalyst.sh" || exit 1
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# include upload options
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. "${BUILD_LIBRARY_DIR}/release_util.sh" || exit 1
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## Define the stage4 config template
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catalyst_stage4() {
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cat <<EOF
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target: stage4
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pkgcache_path: $BINPKGS
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stage4/packages: coreos-devel/sdk-depends
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stage4/fsscript: ${BUILD_LIBRARY_DIR}/catalyst_sdk.sh
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stage4/root_overlay: ${ROOT_OVERLAY}
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stage4/empty: /etc/portage/repos.conf /root /usr/portage /var/cache/edb
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stage4/rm: /etc/machine-id /etc/resolv.conf
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EOF
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catalyst_stage_default
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}
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# Switch to HTTP because early boostrap stages do not have SSL support.
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GENTOO_MIRRORS=$(portageq envvar GENTOO_MIRRORS)
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GENTOO_MIRRORS="${GENTOO_MIRRORS//https:\/\//http://}"
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export GENTOO_MIRRORS
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catalyst_init "$@"
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check_gsutil_opts
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ROOT_OVERLAY=${TEMPDIR}/stage4_overlay
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if [[ "$STAGES" =~ stage4 ]]; then
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info "Setting release to ${FLATCAR_VERSION}"
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rm -rf "${ROOT_OVERLAY}"
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# need to setup the lib->lib64 symlink correctly
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libdir=$(get_sdk_libdir)
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mkdir -p "${ROOT_OVERLAY}/usr/${libdir}"
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if [[ "${libdir}" != lib ]]; then
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ln -s "${libdir}" "${ROOT_OVERLAY}/usr/lib"
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fi
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"${BUILD_LIBRARY_DIR}/set_lsb_release" \
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--root "${ROOT_OVERLAY}"
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fi
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# toolchain_util.sh is required by catalyst_sdk.sh
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# To copy it, we need to create /tmp with the right permissions as it will be
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# used in the exported chroot.
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mkdir -p "${ROOT_OVERLAY}/tmp"
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chmod 1777 "${ROOT_OVERLAY}/tmp"
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cp "${BUILD_LIBRARY_DIR}/toolchain_util.sh" "${ROOT_OVERLAY}/tmp"
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# Stage 1 uses a different ebuild repo snapshot as well as a different portage_overlay
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# than the ones from the SDK where ./bootstrap_sdk is being executed -
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# to build a known-good stage 1 (see stages description at top
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# of file). This prevents package upgrades from updated ebuild files in the portage/coreos
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# to apply in stage 1.
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# Stage 1 lacks proper isolation and will link all packages built against its own
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# seed libraries instead of against libraries installed to /tmp/stage1root.
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build_stage1() {
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local stage1_repos="$TEMPDIR/stage1-ebuild-repos"
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write_configs
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# use known-good gentoo base repo from SDK, coreos-overlay from manifest
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info "Creating stage 1 ebuild repos and stage 1 snapshot in '$stage1_repos'"
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rm -rf "$stage1_repos"
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mkdir "$stage1_repos"
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cp -R /var/gentoo/repos/gentoo "$stage1_repos"
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local overlay_revision=$(
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grep 'name="kinvolk/coreos-overlay"' /mnt/host/source/.repo/manifests/default.xml \
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| sed 's/.*revision="refs\/\(heads\/\)\{0,1\}\([^"]\+\)".*/\2/' )
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info "Using coreos-overlay revision '$overlay_revision'"
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mkdir "$stage1_repos/coreos-overlay"
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( cd "$stage1_repos/coreos-overlay" \
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&& git clone https://github.com/kinvolk/coreos-overlay.git . \
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&& git checkout "$overlay_revision" )
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catalyst_conf > "$TEMPDIR/catalyst-stage1.conf"
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sed -i "s:^portdir.*:portdir=\"$stage1_repos/gentoo\":" \
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"$TEMPDIR/catalyst-stage1.conf"
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catalyst $DEBUG -c "$TEMPDIR/catalyst-stage1.conf" -s "$FLAGS_version-stage1"
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sed -i -e "s/^snapshot:.*/snapshot: $FLAGS_version-stage1/" \
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-e "s,^portage_overlay:.*,portage_overlay: $stage1_repos/coreos-overlay," \
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"$TEMPDIR/stage1.spec"
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build_stage stage1 "$SEED" "$TEMPDIR/catalyst-stage1.conf"
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}
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if [[ "$STAGES" =~ stage1 ]]; then
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build_stage1
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STAGES="${STAGES/stage1/}"
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fi
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catalyst_build
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if [[ "$STAGES" =~ stage4 ]]; then
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info "Build complete! Changing output name to something more sensible."
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build_name="stage4-${ARCH}-${FLAGS_version}.tar.bz2"
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release_name="${TYPE}-${ARCH}-${FLAGS_version}.tar.bz2"
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build_image="${BUILDS}/${build_name}"
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release_image="${BUILDS}/${release_name}"
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build_contents="${build_image}.CONTENTS.gz"
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release_contents="${release_image}.CONTENTS.gz"
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build_digests="${build_image}.DIGESTS"
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release_digests="${release_image}.DIGESTS"
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ln -f "${build_image}" "${release_image}"
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ln -f "${build_contents}" "${release_contents}"
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sed -e "s/${build_name}/${release_name}/" \
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"${build_digests}" > "${release_digests}"
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# Validate we didn't break the DIGESTS with sed
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verify_digests "${release_image}" "${release_contents}"
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info "SDK ready: ${release_image}"
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def_upload_path="${UPLOAD_ROOT}/sdk/${ARCH}/${FLAGS_version}"
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sign_and_upload_files "tarball" "${def_upload_path}" "" \
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"${release_image}" "${release_contents}" "${release_digests}"
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sign_and_upload_files "packages" "${def_upload_path}" "pkgs/" \
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"${BINPKGS}"/*
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# Upload the SDK toolchain packages
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sign_and_upload_files "cross toolchain packages" "${def_upload_path}" \
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"toolchain/" "${BINPKGS}/crossdev"/*
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fi
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command_completed
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