~/.docker/config.json

https://docs.docker.com/engine/reference/commandline/cli/#docker-cli-configuration-file-configjson-properties

~/.docker/config.json
{
  "credsStore": "desktop",
  "credHelpers": {
    "gcr.io": "gcloud",
    "us.gcr.io": "gcloud",
    "eu.gcr.io": "gcloud",
    "asia.gcr.io": "gcloud",
    "staging-k8s.gcr.io": "gcloud",
    "marketplace.gcr.io": "gcloud"
  }
}%

~/.docker/config.json
{
        "auths": {
                "https://index.docker.io/v1/": {
                        "auth": "XXXXXXXXXXXXX",
                        "email": "[email protected]"
                }
        }
}

 ~/.docker/config.json
 {
	"auths": {
		"012345678.dkr.ecr.eu-central-1.amazonaws.com": {}
	},
	"credsStore": "desktop",
	"credHelpers": {
		"asia.gcr.io": "gcloud",
		"eu.gcr.io": "gcloud",
		"gcr.io": "gcloud",
		"marketplace.gcr.io": "gcloud",
		"staging-k8s.gcr.io": "gcloud",
		"us.gcr.io": "gcloud"
	}
 }%

{
	"auths": {
    "https://index.docker.io/v1/": {
      "auth": "bG90YXM6MjWQtYzlhZWJmNGFiZjMz"
    }
   },
	"credHelpers": {
		"asia.gcr.io": "gcr",
		"eu.gcr.io": "gcr,"
		"gcr.io": "gcr",
		"marketplace.gcr.io": "gcloud",
		"staging-k8s.gcr.io": "gcr",
		"us.gcr.io": "gcr"
	}}

Related

• ~/.docker/daemon.json
• gcloud auth configure-docker
• GitLab CI: DOCKER_AUTH_CONFIG
• docker login
• ~/.dockercfg
• Avalanche
• Kubernetes secret: kubernetes.io/dockerconfigjson
• Password
• Pull an Image from a Private Registry in Kubernetes

See also

• docker config, ~/.docker/config.json, CredsStore, CredHelpers
• docker login, PAT, docker login --help, ~/.dockercfg, ~/.docker/config.json
• Credential Helpers, credHelpers, credsStore, docker-credential-osxkeychain