kaniko/files/config.json

{
	"auths": {
	},
	"credHelpers": {
		"appengine.gcr.io": "gcr",
		"asia.gcr.io": "gcr",
		"eu.gcr.io": "gcr",
		"gcr.io": "gcr",
		"gcr.kubernetes.io": "gcr",
		"us.gcr.io": "gcr"
	}
}