Creates a config.json secret with docker login credentials
docker run -it -v /var/run/docker.sock:/var/run/docker.sock fermayo/docker-login-secret [REGISTRY]
After logging in, creates a secret called config.json with the credentials in the format:
{
"auths": {
"https://index.docker.io/v1/": {
"auth": "<base64encoded credentials>"
}
}
}
In combination with an environment variable like DOCKER_CONFIG=/run/secrets, this is useful for services with the docker CLI to have registry access for pushing or pulling private images.