Unable to publish corral image to registry `404 manifest invalid`

[slickwarren]

When using the corral package publish <local package> <public name> function, I run into an error which points to a bad manifest.

After some investigation, this may be due to a versioning or content-type issue:
host logs:

manifest: {"schemaVersion":2,"config":{"mediaType":"application/vnd.oci.image.layer.v1.tar","digest":"sha256:54a835b1925555d625da47d3d35405c3890915f6e90821acec24f4a42d50c8fc","size":2425},"layers":[{"mediaType":"application/vnd.oci.image.layer.v1.tar+gzip","digest":"sha256:3c602b3756058d0cfd9e01460aaf5c894d7d93af0205eeae0e41925fd1582c00","size":795},{"mediaType":"application/vnd.oci.image.layer.v1.tar+gzip","digest":"sha256:79a91e44b6b496e026ef8e27ffb5aab9e6b059b2d97946944f6fda0506365e7f","size":1320},{"mediaType":"application/vnd.oci.image.layer.v1.tar+gzip","digest":"sha256:fc13a90040cd1f87bee16b43f07ecc3c644a7d6ec83935e994ed876bc6a54f2b","size":906}],"annotations":{"corral.cattle.io/corral-version":"test","corral.cattle.io/published-at":"2022-12-06T00:52:55Z","corral.cattle.io/published-by":"ctw","corral.cattle.io/terraform-version":"1.0.11"}} 




"MANIFEST_INVALID\",\"message\":\"manifest invalid\",\"detail\":{}}]}\n" resp="&{400 Bad Request 400 HTTP/1.1 1 1 map[Connection:[keep-alive] Content-Length:[82] Content-Type:[application/json; charset=utf-8] Date:[Tue, 06 Dec 2022 00:53:01 GMT] Docker-Distribution-Api-Version:[registry/2.0] Server:[nginx/1.23.2] X-Content-Type-Options:[nosniff]] 0xc00039e040 82 [] false false map[] 0xc00009bf00 0xc00054a0b0}"
[4:55](https://suse.slack.com/archives/D02M89K081L/p1670288134012479)
time="2022-12-06T00:53:01Z" level=error msg="response completed with error" err.code="manifest unknown" err.detail="unknown tag=latest" err.message="manifest unknown" go.version=go1.7.6 http.request.host=ctwtest-registry.qa.rancher.space http.request.id=1932de35-0883-4801-aad7-c086030c54c0 http.request.method=HEAD http.request.remoteaddr=73.189.63.80 http.request.uri="/v2/corral-packages/aws-replace-node-rke2-replace-node-calico-v1.24.7-rke2r1/manifests/latest" http.request.useragent="Corral/c5a0b23-dirty" http.response.contenttype="application/json; charset=utf-8" http.response.duration=1.550633ms http.response.status=404 http.response.written=96 instance.id=42c1974a-fa4d-4743-bcf2-87cb5c410148 vars.name="corral-packages/aws-replace-node-rke2-replace-node-calico-v1.24.7-rke2r1" vars.reference=latest version=v2.6.2-14-ga66a4c3 

Registry logs:

time="2022-12-06T00:53:01Z" level=error msg="response completed with error" err.code="manifest invalid" err.detail="missing signature key" err.message="manifest invalid" go.version=go1.7.6 http.request.contenttype="application/vnd.oci.image.manifest.v1+json" http.request.host=ctwtest-registry.qa.rancher.space http.request.id=da6dd9f6-ed17-4be5-8a2d-3f8eee5b1fad http.request.method=PUT http.request.remoteaddr=73.189.63.80 http.request.uri="/v2/corral-packages/aws-replace-node-rke2-replace-node-calico-v1.24.7-rke2r1/manifests/latest" http.request.useragent="Corral/c5a0b23-dirty" http.response.contenttype="application/json; charset=utf-8" http.response.duration=1.457591ms http.response.status=400 http.response.written=82 instance.id=42c1974a-fa4d-4743-bcf2-87cb5c410148 vars.name="corral-packages/aws-replace-node-rke2-replace-node-calico-v1.24.7-rke2r1" vars.reference=latest version=v2.6.2-14-ga66a4c3 
172.17.0.3 - - [06/Dec/2022:00:53:01 +0000] "PUT /v2/corral-packages/aws-replace-node-rke2-replace-node-calico-v1.24.7-rke2r1/manifests/latest HTTP/1.0" 400 82 "" "Corral/c5a0b23-dirty"

example of a noncorral image's content type:

http.request.contenttype="application/vnd.docker.distribution.manifest.v2+json"