docker/monitoring/watchtower-config.json

{
	"auths": {
		"cs-registry.ddnss.de": {
			"auth": "Y2hyaXM6U2VjcmV0MTI="
		},
		"https://index.docker.io/v1/": {
			"auth": "Y3MyMjExOkU2U2Njc3ViRFJrYUppMlNMVSUh"
		}
	}
}