az acr login store wrong username in mac keychain

[ptantanis]

Describe the bug
Hi,

I'm using some lib to pull image from registry. This lib will call docker-credential-desktop command to get user/pass and then call docker api to pull image.

The problem is username store with az acr login in mac keychain is <token> instead of 00000000-0000-0000-0000-000000000000 which cause authentication fail because of wrong username.

To Reproduce
Steps to reproduce the behavior:

1. Log in with az acr login -n <registry name> Individual login with Azure AD
2. Run echo <registry url> | docker-credential-desktop get
3. Got Username":""

Expected behavior
store account name as 00000000-0000-0000-0000-000000000000 instead of <token>

Screenshots

Any relevant environment information

• OS: macos 13.5.2
• azure-cli 2.52.0
• Docker desktop 4.22.1

[ptantanis]

Docker login command also store username as <token>. so this probably not az acr login false.