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moby--moby/hack/make/.ensure-frozen-images

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#!/bin/bash
set -e
# image list should match what's in the Dockerfile (minus the explicit images IDs)
images=(
buildpack-deps:jessie
busybox:latest
debian:jessie
hello-world:latest
)
if [ "$TEST_IMAGE_NAMESPACE" ]; then
for (( i = 0; i < ${#images[@]}; i++ )); do
images[$i]="$TEST_IMAGE_NAMESPACE/${images[$i]}"
done
fi
if ! docker inspect "${images[@]}" &> /dev/null; then
hardCodedDir='/docker-frozen-images'
if [ -d "$hardCodedDir" ]; then
# Do not use a subshell for the following command. Windows to Linux CI
# runs bash 3.x so will not trap an error in a subshell.
# http://stackoverflow.com/questions/22630363/how-does-set-e-work-with-subshells
set -x; tar -cC "$hardCodedDir" . | docker load; set +x
else
dir="$DEST/frozen-images"
# extract the exact "RUN download-frozen-image-v2.sh" line from the Dockerfile itself for consistency
# NOTE: this will fail if either "curl" or "jq" is not installed or if the Dockerfile is not available/readable
awk '
$1 == "RUN" && $2 == "./contrib/download-frozen-image-v2.sh" {
for (i = 2; i < NF; i++)
printf ( $i == "'"$hardCodedDir"'" ? "'"$dir"'" : $i ) " ";
print $NF;
if (/\\$/) {
inCont = 1;
next;
}
}
inCont {
print;
if (!/\\$/) {
inCont = 0;
}
}
' "$DOCKERFILE" | sh -x
# Do not use a subshell for the following command. Windows to Linux CI
# runs bash 3.x so will not trap an error in a subshell.
# http://stackoverflow.com/questions/22630363/how-does-set-e-work-with-subshells
set -x; tar -cC "$dir" . | docker load; set +x
fi
fi
if [ "$TEST_IMAGE_NAMESPACE" ]; then
for image in "${images[@]}"; do
target="${image#$TEST_IMAGE_NAMESPACE/}"
if [ "$target" != "$image" ]; then
# tag images to ensure that all integrations work with the defined image names
docker tag "$image" "$target"
# then remove original tags as these make problems with later tests (e.g., TestInspectApiImageResponse)
docker rmi "$image"
fi
done
fi
# explicitly rename "hello-world:latest" to ":frozen" for the test that uses it
docker tag hello-world:latest hello-world:frozen
docker rmi hello-world:latest