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compat: RepoTags and RepoDigest return [] and not null

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Signed-off-by: Nicola Sella <nsella@redhat.com>
This commit is contained in:
Nicola Sella
2025-05-27 18:15:14 +02:00
parent 20d5b78a79
commit 3ef33653ff
2 changed files with 24 additions and 0 deletions
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9
pkg/api/handlers/compat/images.go
View File

@ -468,6 +468,15 @@ func GetImages(w http.ResponseWriter, r *http.Request) {
// docker adds sha256: in front of the ID
for _, s := range summaries {
s.ID = "sha256:" + s.ID
// Ensure RepoTags and RepoDigests are empty arrays instead of null for Docker compatibility
// as per https://docs.docker.com/reference/api/engine/version-history/#v143-api-changes
// Relates to https://issues.redhat.com/browse/RUN-2699
if s.RepoTags == nil {
s.RepoTags = []string{}
}
if s.RepoDigests == nil {
s.RepoDigests = []string{}
}
}
}
utils.WriteResponse(w, http.StatusOK, summaries)

15
test/apiv2/10-images.at
View File

@ -440,4 +440,19 @@ t GET "libpod/events?stream=false&since=$START" 200 \
.Actor.Attributes.name="localhost:5000/idonotexist" \
.Actor.Attributes.error~".*connection refused"
# test empty RepoTags and RepoDigests is an empty array
IIDFILE=$(mktemp)
podman image build --iidfile $IIDFILE -<<EOF
FROM $IMAGE
RUN :
EOF
t GET images/json 200 \
.[1].RepoTags=[] \
.[1].RepoDigests=[] \
.[1].Id=$(< $IIDFILE)
podman rmi -f $(< $IIDFILE)
rm -f $IIDFILE
# vim: filetype=sh