Scanner is not working for Harbor Proxy Cache Projects

[gilAqua]

When the Aqua Harbor Scanner plugin scans a proxy cache image, it fails to send a tag value to the Aqua Scanner. This results in the Scanner using ":latest" as the tag. This results in image scan failure because there may not be a ":latest" tagged image.

Example :

"artifact": {
"namespace_id": 3,
"repository": "ext.hub.docker.com/library/node",
"tag": "",
"digest": "sha256:26c00e8ca7cbe467e35d4efdbe3aded834b0b7bf7512d62db4c51f6b86466e1c",
"mime_type": "application/vnd.docker.distribution.manifest.v2+json"

Since ":latest" is appended automatically due to the missing value for tag, the scanner fails with:

Failed scanning image ext.hub.docker.com/library/node::latest: image was not found in registry
: general response handler: unexpected status code: 500, expected: 200

It seems the Adapter needs to parse the tag information from the source image data differently than it is currently doing for Proxy Cache. There is something different about how Harbor and/or this Scanner Adapter is able to handle the image tags.