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Enable configuration of index dependency validation

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Enable configuration options that can selectively disable validation
that dependencies exist within the registry before the image index
is uploaded.

This enables sparse indexes, where a registry holds a manifest index that
could be signed (so the digest must not change) but does not hold every
referenced image in the index. The use case for this is when a registry
mirror does not need to mirror all platforms, but does need to maintain
the digests of all manifests either because they are signed or because
they are pulled by digest.

The registry administrator can also select specific image architectures
that must exist in the registry, enabling a registry operator to select
only the platforms they care about and ensure all image indexes uploaded
to the registry are valid for those platforms.

Signed-off-by: James Hewitt <james.hewitt@uk.ibm.com>
This commit is contained in:
James Hewitt
2023-08-15 14:37:43 +01:00
parent e0a54de7fc
commit c40c4b289a
10 changed files with 520 additions and 95 deletions
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2
registry/handlers/api_test.go
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@@ -2514,7 +2514,7 @@ func pushChunk(t *testing.T, ub *v2.URLBuilder, name reference.Named, uploadURLB
func checkResponse(t *testing.T, msg string, resp *http.Response, expectedStatus int) {
if resp.StatusCode != expectedStatus {
t.Logf("unexpected status %s: %v != %v", msg, resp.StatusCode, expectedStatus)
t.Logf("unexpected status %s: expected %v, got %v", msg, resp.StatusCode, expectedStatus)
maybeDumpResponse(t, resp)
t.FailNow()
}