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/*
* Copyright (c) 2021. Ant Group. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*/
package auth
import (
"os"
dockerconfig "github.com/docker/cli/cli/config"
"github.com/sirupsen/logrus"
)
const (
dockerHost = "https://index.docker.io/v1/"
convertedDockerHost = "registry-1.docker.io"
)
// FromDockerConfig finds auth for a given host in docker's config.json settings.
func FromDockerConfig(host string) *PassKeyChain {
if len(host) == 0 {
return nil
}
// The host of docker hub image will be converted to `registry-1.docker.io` in:
// github.com/containerd/containerd/remotes/docker/registry.go
// But we need use the key `https://index.docker.io/v1/` to find auth from docker config.
if host == convertedDockerHost {
host = dockerHost
}
config := dockerconfig.LoadDefaultConfigFile(os.Stderr)
authConfig, err := config.GetAuthConfig(host)
if err != nil {
logrus.WithError(err).Infof("no auth from docker config for host %s", host)
return nil
}
// Do not return empty auth. It makes caller life easier.
if len(authConfig.Username) == 0 || len(authConfig.Password) == 0 {
return nil
}
return &PassKeyChain{
Username: authConfig.Username,
Password: authConfig.Password,
}
}
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