cff4c01971
Before doing anything, ensure that we have at least two arguments.
Correct misuse of $() when ${} was intended, to reference environment
variables.
Use `buildah config --created-by` rather than `--add-history` to set the
CreatedBy field when committing new images, so that they only add one
history entry.
Set timestamps on .src.rpm files to their build date, rather than 0.
Commit new images using --omit-timestamp, to make their own timestamps
predictable.
Only name the final image.
Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
80 lines
2.7 KiB
Bash
Executable file
80 lines
2.7 KiB
Bash
Executable file
#!/bin/sh
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# This script requires an OCI IMAGE Name to pull.
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# The script generates a SOURCE Image based on the OCI Image
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# Script must be executed on the same OS or newer as the image.
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if test $# -lt 2 ; then
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echo Usage: $(basename $0) IMAGE CONTEXT_DIR [EXTRA_SRC_DIR]
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exit 1
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fi
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export IMAGE=$1
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export SRC_RPM_DIR=$(pwd)/SRCRPMS
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export SRC_IMAGE=$1-src
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export CONTEXT_DIR=$2
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export EXTRA_SRC_DIR=$3
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export IMAGE_CTR=$(buildah from ${IMAGE})
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export IMAGE_MNT=$(buildah mount ${IMAGE_CTR})
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#
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# From the executable image, get the RELEASEVER of the image
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#
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RELEASE=$(rpm -q --queryformat "%{VERSION}\n" --root $IMAGE_MNT -f /etc/os-release)
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#
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# From the executable image, list the SRC RPMS used to build the image
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#
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SRC_RPMS=$(rpm -qa --root ${IMAGE_MNT} --queryformat '%{SOURCERPM}\n' | grep -v '^gpg-pubkey' | sort -u)
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buildah umount ${IMAGE_CTR}
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buildah rm ${IMAGE_CTR}
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#
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# For each SRC_RPMS used to build the executable image, download the SRC RPM
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# and generate a layer in the SRC RPM.
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#
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mkdir -p ${SRC_RPM_DIR}
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pushd ${SRC_RPM_DIR} > /dev/null
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export SRC_CTR=$(buildah from scratch)
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for i in ${SRC_RPMS}; do
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if [ ! -f $i ]; then
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RPM=$(echo $i | sed 's/.src.rpm$//g')
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dnf download --release $RELEASE --source $RPM || continue
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fi
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echo "Adding $i"
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touch --date=@`rpm -q --qf '%{buildtime}' $i` $i
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buildah add ${SRC_CTR} $i /RPMS/
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buildah config --created-by "/bin/sh -c #(nop) ADD file:$(sha256sum $i | cut -f1 -d' ') in /RPMS" ${SRC_CTR}
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export IMG=$(buildah commit --omit-timestamp --disable-compression --rm ${SRC_CTR})
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export SRC_CTR=$(buildah from ${IMG})
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done
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popd > /dev/null
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#
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# If the caller specified a context directory,
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# add it to the CONTEXT DIR in SRC IMAGE
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#
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if [ ! -z "${CONTEXT_DIR}" ]; then
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CONTEXT_DIR=$(cd ${CONTEXT_DIR}; pwd)
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buildah add ${SRC_CTR} ${CONTEXT_DIR} /CONTEXT
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buildah config --created-by "/bin/sh -c #(nop) ADD file:$(cd ${CONTEXT_DIR}; tar cf - . | sha256sum -| cut -f1 -d' ') in /CONTEXT" ${SRC_CTR}
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export IMG=$(buildah commit --omit-timestamp --rm ${SRC_CTR})
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export SRC_CTR=$(buildah from ${IMG})
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fi
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#
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# If the caller specified a extra directory,
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# add it to the CONTEXT DIR in SRC IMAGE
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#
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if [ ! -z "${EXTRA_SRC_DIR}" ]; then
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buildah add ${SRC_CTR} ${EXTRA_SRC_DIR} /EXTRA
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buildah config --created-by "/bin/sh -c #(nop) ADD file:$(cd ${EXTRA_SRC_DIR}; tar cf - . | sha256sum -| cut -f1 -d' ') in /CONTEXT" ${SRC_CTR}
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export IMG=$(buildah commit --omit-timestamp --rm ${EXTRA_SRC_CTR})
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export SRC_CTR=$(buildah from ${IMG})
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fi
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# Cleanup and remove source container
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buildah rm ${SRC_CTR}
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#
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# Add the final name to our image
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#
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buildah tag $IMG $SRC_IMAGE
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# Push SRC_IMAGE to Registry
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# buildah push $SRC_IMAGE REGISTRY_NAME/$SRC_IMAGE
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