Error saving credentials: error storing credentials - err: exec: "docker-credential-desktop": executable file not found in $PATH, out: ``

Rancher Desktop Version

0.7.0

Rancher Desktop K8s Version

1.21.6

What operating system are you using?

macOS

Operating System / Build Version

11.6.1

What CPU architecture are you using?

x64

Windows User Only

No response

Actual Behavior

> docker login registry.local
Username: user
Password: 
Error saving credentials: error storing credentials - err: exec: "docker-credential-desktop": executable file not found in $PATH, out: ``

Steps to Reproduce

Delete any other Docker installs, install RD with DockerD option, activate /usr/local/bin/docker symlink option. Try docker login.

Result

Not able to login.

Expected Behavior

Should be able to use private registries.

Additional Information

No response

[jandubois]

docker-credential-desktop is part of Docker Desktop and obviously no longer available when you uninstall it.

It is configured in ~/.docker/config.json:

{
    "auths": {
		"ghcr.io": {},
    },
    "credsStore": "desktop"
}

When you delete the credsStore entry, the credentials will be stored directly inside this config file.

Or you could install the docker credential helper with e.g. brew:

$ brew install docker-credential-helper

and then change desktop to osxkeychain (the desktop helper is not available outside Docker Desktop).

Note that this is purely about encrypting credentials at rest (when you are not already logged into the system). If you already use drive encryption, it doesn’t really make much difference.

[evertonlperes]

Adding a bit more info in this thread:

On macOS, after uninstalling Docker Desktop and removing the folder ~/Library/Application\ Support/Docker\ Desktop/, I can also replicate the same issue (using docker-compose):

❯ docker-compose build && docker-compose up
2 errors occurred:
	* error listing credentials - err: exec: "docker-credential-desktop": executable file not found in $PATH, out: ``
	* error listing credentials - err: exec: "docker-credential-desktop": executable file not found in $PATH, out: ``

A workaround that actually works for me, removing credsStore entry from config.json:

{
  "auths" : {
    "https://index.docker.io/v1/" : {

    }
  }
}

Ref project: https://github.com/evertonlperes/sample-test-app Rancher Desktop 1.0.0-beta1 macOS Monterey 12.1