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diff --git a/release/Makefile.oci b/release/Makefile.oci
--- a/release/Makefile.oci
+++ b/release/Makefile.oci
@@ -26,11 +26,7 @@
container-image-${_IMG}.txz: ${OCI_DEPS_${_IMG}}
# Adjust PATH so that we run pwd_mkdb from the bootstrap tools
env PATH=${OBJTOP}/tmp/legacy/bin:${PATH:Q} \
- sh ${.CURDIR}/scripts/make-oci-image.sh ${.CURDIR} ${REVISION} ${BRANCH} ${TARGET_ARCH} ${_IMG}
- skopeo copy \
- containers-storage:localhost/freebsd${REVISION:R}-${_IMG}:latest \
- oci-archive:${.OBJDIR}/container-image-${_IMG}.tar:freebsd${REVISION:R}-${_IMG}:${REVISION}-${BRANCH}-${TARGET_ARCH}
- ${XZ_CMD} < ${.OBJDIR}/container-image-${_IMG}.tar > ${.OBJDIR}/container-image-${_IMG}.txz
+ sh ${.CURDIR}/scripts/make-oci-image.sh ${.CURDIR} ${REVISION} ${BRANCH} ${TARGET_ARCH} ${_IMG} container-image-${_IMG}.txz
.endfor
oci-release: ${OCI_TARGETS}
diff --git a/release/release.sh b/release/release.sh
--- a/release/release.sh
+++ b/release/release.sh
@@ -292,44 +292,6 @@
fi
fi
- if [ ! -z "${WITH_OCIIMAGES}" ]; then
- # Install buildah and skopeo from ports if the ports tree is available;
- # otherwise install the pkg.
- if [ -d ${CHROOTDIR}/usr/ports ]; then
- # Trick the ports 'run-autotools-fixup' target to do the right
- # thing.
- _OSVERSION=$(chroot ${CHROOTDIR} /usr/bin/uname -U)
- REVISION=$(chroot ${CHROOTDIR} make -C /usr/src/release -V REVISION)
- BRANCH=$(chroot ${CHROOTDIR} make -C /usr/src/release -V BRANCH)
- UNAME_r=${REVISION}-${BRANCH}
- GITUNSETOPTS="CONTRIB CURL CVS GITWEB GUI HTMLDOCS"
- GITUNSETOPTS="${GITUNSETOPTS} ICONV NLS P4 PERL"
- GITUNSETOPTS="${GITUNSETOPTS} SEND_EMAIL SUBTREE SVN"
- GITUNSETOPTS="${GITUNSETOPTS} PCRE PCRE2"
- PBUILD_FLAGS="OSVERSION=${_OSVERSION} BATCH=yes"
- PBUILD_FLAGS="${PBUILD_FLAGS} UNAME_r=${UNAME_r}"
- PBUILD_FLAGS="${PBUILD_FLAGS} OSREL=${REVISION}"
- PBUILD_FLAGS="${PBUILD_FLAGS} WRKDIRPREFIX=/tmp/ports"
- PBUILD_FLAGS="${PBUILD_FLAGS} DISTDIR=/tmp/distfiles"
- for _PORT in sysutils/buildah sysutils/skopeo; do
- eval chroot ${CHROOTDIR} env ${PBUILD_FLAGS} make -C \
- /usr/ports/${_PORT} \
- FORCE_PKG_REGISTER=1 deinstall install clean distclean
- done
- else
- eval chroot ${CHROOTDIR} env ASSUME_ALWAYS_YES=yes \
- pkg install -y sysutils/buildah sysutils/skopeo
- eval chroot ${CHROOTDIR} env ASSUME_ALWAYS_YES=yes \
- pkg clean -y
- fi
- # Use the vfs storage driver so that this works whether or not
- # the build directory is on ZFS. The images are small so the
- # performance difference is negligible.
- eval chroot ${CHROOTDIR} sed -I .bak -e '/^driver/s/zfs/vfs/' /usr/local/etc/containers/storage.conf
- # Remove any stray images from previous builds
- eval chroot ${CHROOTDIR} buildah rmi -af
- fi
-
if [ ! -z "${EMBEDDEDPORTS}" ]; then
_OSVERSION=$(chroot ${CHROOTDIR} /usr/bin/uname -U)
REVISION=$(chroot ${CHROOTDIR} make -C /usr/src/release -V REVISION)
diff --git a/release/scripts/make-oci-image.sh b/release/scripts/make-oci-image.sh
--- a/release/scripts/make-oci-image.sh
+++ b/release/scripts/make-oci-image.sh
@@ -7,21 +7,23 @@
branch=$1; shift
arch=$1; shift
image=$1; shift
+output=$1; shift
major=${rev%.*}
minor=${rev#*.}
abi=FreeBSD:${major}:${arch}
+ver=${rev}-${branch}-${arch}
echo "Building OCI freebsd${major}-${image} image for ${abi}"
. ${curdir}/tools/oci-image-${image}.conf
-init_workdir() {
+init_repo() {
+ local workdir=$1; shift
local abi=$1; shift
- local workdir=$(mktemp -d -t oci-images)
- mkdir ${workdir}/repos
+ mkdir -p ${workdir}/repos
cat > ${workdir}/repos/base.conf <<EOF
FreeBSD-base: {
url: "file:///usr/obj/usr/src/repo/${abi}/latest"
@@ -30,9 +32,9 @@
}
EOF
cp /etc/pkg/FreeBSD.conf ${workdir}/repos
- echo ${workdir}
}
+# Install packages using pkg(8) into a container with rootfs at $3
install_packages() {
local abi=$1; shift
local workdir=$1; shift
@@ -49,15 +51,95 @@
rm -rf ${rootdir}/var/db/pkg/repos
}
-workdir=$(init_workdir ${abi})
+set_cmd() {
+ local workdir=$1; shift
+ oci_cmd="$@"
+}
+
+# Convert FreeBSD architecture to OCI-style. See
+# https://github.com/containerd/platforms/blob/main/platforms.go for details
+normalize_arch() {
+ local arch=$1; shift
+ case ${arch} in
+ i386)
+ arch=386
+ ;;
+ aarch64)
+ arch=arm64
+ ;;
+ amd64) ;;
+ riscv64) ;;
+ *)
+ echo "Architecture ${arch} not supported for container images"
+ ;;
+ esac
+ echo ${arch}
+}
+
+create_container() {
+ local workdir=$1; shift
+ local base_workdir=$1; shift
+ oci_cmd=
+ if [ -d ${workdir}/rootfs ]; then
+ chflags -R 0 ${workdir}/rootfs
+ rm -rf ${workdir}/rootfs
+ fi
+ mkdir -p ${workdir}/rootfs
+ if [ "${base_workdir}" != "" ]; then
+ tar -C ${workdir}/rootfs -xf ${base_workdir}/rootfs.tar.gz
+ fi
+ echo ${workdir}/rootfs
+}
+
+commit_container() {
+ local workdir=$1; shift
+ local image=$1; shift
+ local output=$1; shift
+
+ # Note: the diff_id (needed for image config) is the hash of the uncompressed tar
+ tar -C ${workdir}/rootfs --strip-components 1 -cf ${workdir}/rootfs.tar .
+ local diff_id=$(sha256 -q < ${workdir}/rootfs.tar)
+ gzip -f ${workdir}/rootfs.tar
+ local create_time=$(date -u +%Y-%m-%dT%TZ)
+ local root_hash=$(sha256 -q < ${workdir}/rootfs.tar.gz)
+ local root_size=$(stat -f %z ${workdir}/rootfs.tar.gz)
+
+ oci_arch=$(normalize_arch ${arch})
+
+ config=
+ if [ -n "${oci_cmd}" ]; then
+ config=",\"config\":{\"cmd\":[\"${oci_cmd}\"]}"
+ fi
+ echo "{\"created\":\"${create_time}\",\"architecture\":\"${oci_arch}\",\"os\":\"freebsd\"${config},\"rootfs\":{\"type\":\"layers\",\"diff_ids\":[\"sha256:${diff_id}\"]},\"history\":[{\"created\":\"${create_time}\",\"created_by\":\"make-oci-image.sh\"}]}" > ${workdir}/config.json
+ local config_hash=$(sha256 -q < ${workdir}/config.json)
+ local config_size=$(stat -f %z ${workdir}/config.json)
+
+ echo "{\"schemaVersion\":2,\"mediaType\":\"application/vnd.oci.image.manifest.v1+json\",\"config\":{\"mediaType\":\"application/vnd.oci.image.config.v1+json\",\"digest\":\"sha256:${config_hash}\",\"size\":${config_size}},\"layers\":[{\"mediaType\":\"application/vnd.oci.image.layer.v1.tar+gzip\",\"digest\":\"sha256:${root_hash}\",\"size\":${root_size}}],\"annotations\":{}}" > ${workdir}/manifest.json
+ local manifest_hash=$(sha256 -q < ${workdir}/manifest.json)
+ local manifest_size=$(stat -f %z ${workdir}/manifest.json)
+
+ mkdir -p ${workdir}/oci/blobs/sha256
+ echo "{\"imageLayoutVersion\": \"1.0.0\"}" > ${workdir}/oci/oci-layout
+ echo "{\"schemaVersion\":2,\"manifests\":[{\"mediaType\":\"application/vnd.oci.image.manifest.v1+json\",\"digest\":\"sha256:${manifest_hash}\",\"size\":${manifest_size},\"annotations\":{\"org.opencontainers.image.ref.name\":\"freebsd-${image}:${ver}\"}}]}" > ${workdir}/oci/index.json
+ ln ${workdir}/rootfs.tar.gz ${workdir}/oci/blobs/sha256/${root_hash}
+ ln ${workdir}/config.json ${workdir}/oci/blobs/sha256/${config_hash}
+ ln ${workdir}/manifest.json ${workdir}/oci/blobs/sha256/${manifest_hash}
+
+ tar -C ${workdir}/oci --xz --strip-components 1 --no-read-sparse -a -cf ${output} .
+}
+
+# Prefix with "container-image-" so that we can create a unique work area under
+# ${.OBJDIR}. We can assume that make has set our working directory to
+# ${.OBJDIR}.
+workdir=${PWD}/container-image-${image}
+init_repo ${workdir} ${abi}
+
if [ -n "${OCI_BASE_IMAGE}" ]; then
- base_image=freebsd${major}-${OCI_BASE_IMAGE}
+ base_workdir=${PWD}/container-image-${OCI_BASE_IMAGE}
else
- base_image=scratch
+ base_workdir=
fi
-c=$(buildah from --arch ${arch} ${base_image})
-m=$(buildah mount $c)
+m=$(create_container ${workdir} ${base_workdir})
oci_image_build
-buildah unmount $c
-buildah commit --rm $c freebsd${major}-${image}:latest
+commit_container ${workdir} ${image} ${output}
diff --git a/release/tools/oci-image-minimal.conf b/release/tools/oci-image-minimal.conf
--- a/release/tools/oci-image-minimal.conf
+++ b/release/tools/oci-image-minimal.conf
@@ -8,6 +8,7 @@
OCI_BASE_IMAGE=dynamic
oci_image_build() {
+ set_cmd ${workdir} /bin/sh
install_packages ${abi} ${workdir} $m \
FreeBSD-runtime \
FreeBSD-certctl \

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