diff --git a/hack/make/.ensure-emptyfs b/hack/make/.ensure-emptyfs index db15aabd533a9..db14275850ca2 100644 --- a/hack/make/.ensure-emptyfs +++ b/hack/make/.ensure-emptyfs @@ -1,7 +1,12 @@ #!/usr/bin/env bash set -e -if ! docker image inspect emptyfs > /dev/null; then +function imageNotPresent { + local img="$1" + ! docker image inspect "$img" > /dev/null 2> /dev/null +} + +if imageNotPresent "emptyfs"; then # build a "docker save" tarball for "emptyfs" # see https://github.com/docker/docker/pull/5262 # and also https://github.com/docker/docker/issues/4242 @@ -24,3 +29,27 @@ if ! docker image inspect emptyfs > /dev/null; then ) rm -rf "$dir" fi + +# without c8d image store, image id is the config's id +dangling_cfg=0df1207206e5288f4a989a2f13d1f5b3c4e70467702c1d5d21dfc9f002b7bd43 +# with c8d image store, image id is the id of manifest/manifest list. +dangling_mfst=16d365089e5c10e1673ee82ab5bba38ade9b763296ad918bd24b42a1156c5456 +if imageNotPresent "$dangling_cfg" && imageNotPresent "$dangling_mfst"; then + dir="$DEST/dangling" + mkdir -p "$dir" + ( + cd "$dir" + printf '{"schemaVersion":2,"manifests":[{"mediaType":"application/vnd.docker.distribution.manifest.v2+json","digest":"sha256:16d365089e5c10e1673ee82ab5bba38ade9b763296ad918bd24b42a1156c5456","size":264,"annotations":{"org.opencontainers.image.created":"2023-05-19T08:00:44Z"},"platform":{"architecture":"amd64","os":"linux"}}]}' > index.json + printf '[{"Config":"blobs/sha256/0df1207206e5288f4a989a2f13d1f5b3c4e70467702c1d5d21dfc9f002b7bd43","RepoTags":null,"Layers":null}]' > manifest.json + mkdir -p blobs/sha256 + printf '{"schemaVersion":2,"mediaType":"application/vnd.docker.distribution.manifest.v2+json","config":{"mediaType":"application/vnd.docker.container.image.v1+json","digest":"sha256:0df1207206e5288f4a989a2f13d1f5b3c4e70467702c1d5d21dfc9f002b7bd43","size":390},"layers":[]}' > blobs/sha256/$dangling_mfst + printf '{"architecture":"amd64","config":{"Env":["PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"],"WorkingDir":"/","Labels":{"org.mobyproject.test.specialimage":"1"},"OnBuild":null},"created":null,"history":[{"created_by":"LABEL org.mobyproject.test.specialimage=1","comment":"buildkit.dockerfile.v0","empty_layer":true}],"os":"linux","rootfs":{"type":"layers","diff_ids":null}}' > blobs/sha256/$dangling_cfg + tar -cf layer.tar --files-from /dev/null + ) + ( + [ -n "$TESTDEBUG" ] && set -x + tar -cC "$dir" . | docker load + ) + rm -rf "$dir" + +fi