anchore-cli: Error: cannot use input image string (no discovered imageDigest)

I am having a problem with the anchore-cli running ‘vuln’. It’s entirely possible I just don’t have the right signature, but I’m getting Error: cannot use input image string (no discovered imageDigest).

I’ve added the image and it works as expected. ‘image list’ also. But using the server/namespace/tag format comes back with the error string. Using the sha256 has works properly but adds a step where I have to parse the json from the full output to get the hash, then resubmit. Bit of a pain, that.

Am I missing something simple?

$>anchore-cli image add docker.io/library/debian:latest

Image Digest: sha256:316ebb92ca66bb8ddc79249fb29872bece4be384cb61b5344fac4e84ca4ed2b2
Analysis Status: analyzed
Image Type: docker
Image ID: 2b98c9851a37e18356abe407922726dc35c370f7cee76f435f94ee92950b4493
Dockerfile Mode: Guessed
Distro: debian
Distro Version: 9
Size: 45135077
Architecture: amd64
Layer Count: 1

Full Tag: docker.io/library/debian:latest

Trying to pull the vulnerabilities using the full tag:

$>anchore-cli image vuln docker.io/library/debian:latest os

yields

Error: cannot use input image string (no discovered imageDigest)

Using the sha256 hash works as expected:

$>anchore-cli --json image vuln sha256:316ebb92ca66bb8ddc79249fb29872bece4be384cb61b5344fac4e84ca4ed2b2 os

Thanks much.