--add-host parameter in Marathon docker application
You may pass them in parameters like that:
"container": { "type": "DOCKER", "docker": { "network": "HOST", "image": "your/image", "parameters": [ { "key": "add-host", "value": "host:ip" }, { "key": "dns-search", "value": "url" } ] }}Refer here, "Privileged Mode and Arbitrary Docker Options" section for details.