containers/mirror
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Refactor mirror script, no more (almost) duplicate functions.
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Stanislav Nikitin 2023-01-01 22:42:28 +05:00
parent 1537e05df7
commit 66ca161018
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1 changed files with 18 additions and 46 deletions
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mirror.sh
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@ -45,60 +45,29 @@ function collect_images() {
echo "Images to mirror: ${WHAT_TO_MIRROR[*]}"
}
function get_amd64_image() {
function get_image() {
local image=$1
local arch=$2
image_name=$(echo "${image}" | cut -d":" -f 1)
image_version=$(echo "${image}" | cut -d":" -f 2)
# Check if amd64 layers should be fetched.
if docker manifest inspect "${REMOTE_IMAGE}-amd64" &> /dev/null; then
echo -e "\t* Layers for amd64 architecture for this image exist."
return
# Check if layers for requested architecture should be fetched.
if docker manifest inspect "${REMOTE_IMAGE}-${arch}" &> /dev/null; then
echo -e "\t* Layers for ${arch} architecture for this image exist at registry we mirror to!"
fi
echo -ne "\t* Getting amd64 layers... "
if ! docker pull --platform=linux/amd64 "${image}" &> /dev/null; then
echo "FAIL!"
return 1
fi
echo -n "Downloaded, "
# shellcheck disable=SC1083
image_hash=$(docker images -a | grep "^${image_name}" | grep "${image_version}" | awk {' print $3 '})
if ! docker tag "${image_hash}" "${REMOTE_IMAGE}-amd64" &> /dev/null; then
echo "but tagging failed!"
exit 1
fi
echo "tagged."
}
function get_arm64_image() {
local image=$1
image_name=$(echo "${image}" | cut -d":" -f 1)
image_version=$(echo "${image}" | cut -d":" -f 2)
# Check if arm64 layers should be fetched.
if docker manifest inspect "${REMOTE_IMAGE}-arm64" &> /dev/null; then
echo -e "\t* Layers for arm64 architecture for this image exist."
return
fi
echo -ne "\t* Getting arm64 layers... "
echo -ne "\t* Getting ${arch} layers... "
# arm64 layers might be missing. So we just put "FAIL!" here and do nothing else.
if ! docker pull --platform=linux/arm64 "${image}" &> /dev/null; then
if ! docker pull --platform=linux/"${arch}" "${image}" &> /dev/null; then
echo "FAIL!"
return 1
# We presume that amd64 layers are always present. Returning an error here if they're absent.
if [ "${arch}" == "amd64" ]; then
return 1
fi
fi
echo -n "Downloaded, "
@ -106,14 +75,17 @@ function get_arm64_image() {
# shellcheck disable=SC1083
image_hash=$(docker images -a | grep "^${image_name}" | grep "${image_version}" | awk {' print $3 '})
if ! docker tag "${image_hash}" "${REMOTE_IMAGE}-arm64" &> /dev/null; then
if ! docker tag "${image_hash}" "${REMOTE_IMAGE}-${arch}" &> /dev/null; then
echo "but tagging failed!"
exit 1
fi
echo "tagged."
MULTIARCH=1
# Set multiarch flag for any other arch than amd64.
if [ "${arch}" != "amd64" ]; then
MULTIARCH=1
fi
}
function login_to_registry() {
@ -133,13 +105,13 @@ function mirror() {
MULTIARCH=0
# We presumes that amd64 image should always be available.
if ! get_amd64_image "${image}"; then
if ! get_image "amd64" "${image}"; then
echo "! Image mirroring failed! Cannot obtain amd64 image!"
return 1
fi
get_arm64_image "${image}"
get_image "arm64" "${image}"
push_multiarch_image "${image}"
cleanup "${image}"
}