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Correct quoting, histories

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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>
This commit is contained in:
Nalin Dahyabhai 2019-07-31 19:19:47 -04:00
parent 8e1048f23f
commit cff4c01971
1 changed files with 26 additions and 17 deletions
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43
BuildSourceImage.sh
View file

@ -3,13 +3,17 @@
# This script requires an OCI IMAGE Name to pull.
# The script generates a SOURCE Image based on the OCI Image
# Script must be executed on the same OS or newer as the image.
IMAGE=$1
SRC_RPM_DIR=SRCRPMS
SRC_IMAGE=$1-src
CONTEXT_DIR=$2
EXTRA_SRC_DIR=$3
IMAGE_CTR=$(buildah from ${IMAGE})
IMAGE_MNT=$(buildah mount ${IMAGE_CTR})
if test $# -lt 2 ; then
echo Usage: $(basename $0) IMAGE CONTEXT_DIR [EXTRA_SRC_DIR]
exit 1
fi
export IMAGE=$1
export SRC_RPM_DIR=$(pwd)/SRCRPMS
export SRC_IMAGE=$1-src
export CONTEXT_DIR=$2
export EXTRA_SRC_DIR=$3
export IMAGE_CTR=$(buildah from ${IMAGE})
export IMAGE_MNT=$(buildah mount ${IMAGE_CTR})
#
# From the executable image, get the RELEASEVER of the image
#
@ -25,7 +29,8 @@ buildah rm ${IMAGE_CTR}
# For each SRC_RPMS used to build the executable image, download the SRC RPM
# and generate a layer in the SRC RPM.
#
pushd ${SRC_RPM_DIR}
mkdir -p ${SRC_RPM_DIR}
pushd ${SRC_RPM_DIR} > /dev/null
export SRC_CTR=$(buildah from scratch)
for i in ${SRC_RPMS}; do
if [ ! -f $i ]; then
@ -33,19 +38,22 @@ for i in ${SRC_RPMS}; do
dnf download --release $RELEASE --source $RPM || continue
fi
echo "Adding $i"
touch --date='@0' $i
buildah add --add-history ${SRC_CTR} $i /RPMS
export IMG=$(buildah commit --disable-compression --rm ${SRC_CTR} $i)
touch --date=@`rpm -q --qf '%{buildtime}' $i` $i
buildah add ${SRC_CTR} $i /RPMS/
buildah config --created-by "/bin/sh -c #(nop) ADD file:$(sha256sum $i | cut -f1 -d' ') in /RPMS" ${SRC_CTR}
export IMG=$(buildah commit --omit-timestamp --disable-compression --rm ${SRC_CTR})
export SRC_CTR=$(buildah from ${IMG})
done
popd
popd > /dev/null
#
# If the caller specified a context directory,
# add it to the CONTEXT DIR in SRC IMAGE
#
if [ ! -z "${CONTEXT_DIR}" ]; then
buildah add --add-history ${SRC_CTR} ${CONTEXT_DIR} /CONTEXT
export IMG=$(buildah commit --rm $SRC_CTR $1_$(echo $(CONTEXT_DIR) | sed 's|/|_|g'))
CONTEXT_DIR=$(cd ${CONTEXT_DIR}; pwd)
buildah add ${SRC_CTR} ${CONTEXT_DIR} /CONTEXT
buildah config --created-by "/bin/sh -c #(nop) ADD file:$(cd ${CONTEXT_DIR}; tar cf - . | sha256sum -| cut -f1 -d' ') in /CONTEXT" ${SRC_CTR}
export IMG=$(buildah commit --omit-timestamp --rm ${SRC_CTR})
export SRC_CTR=$(buildah from ${IMG})
fi
@ -54,8 +62,9 @@ fi
# add it to the CONTEXT DIR in SRC IMAGE
#
if [ ! -z "${EXTRA_SRC_DIR}" ]; then
buildah add --add-history ${SRC_CTR} ${EXTRA_SRC_DIR} /EXTRA
export IMG=$(buildah commit --rm $EXTRA_SRC_CTR $1_$(echo $(CONTEXT_DIR) | sed 's|/|_|g'))
buildah add ${SRC_CTR} ${EXTRA_SRC_DIR} /EXTRA
buildah config --created-by "/bin/sh -c #(nop) ADD file:$(cd ${EXTRA_SRC_DIR}; tar cf - . | sha256sum -| cut -f1 -d' ') in /CONTEXT" ${SRC_CTR}
export IMG=$(buildah commit --omit-timestamp --rm ${EXTRA_SRC_CTR})
export SRC_CTR=$(buildah from ${IMG})
fi
@ -63,7 +72,7 @@ fi
buildah rm ${SRC_CTR}
#
# Commit the SRC_CTR TO a SRC_IMAGE
# Add the final name to our image
#
buildah tag $IMG $SRC_IMAGE