Cerebro based on https://github.com/lmenezes/cerebro (actually 0.8.5)
You can add as many hosts (or FQDNs) as you want after image name as Shell argument values, like this :
docker run -d --net host --restart always -P elasticsearch5-tools:latest HOST1 HOST2 HOST3...
If you don't want to give hosts, localhost will be used by default.
docker run -d --net host --restart always -P elasticsearch5-tools:latest
or
docker run -d --net host --restart always -P elasticsearch5-tools:latest HOST1 HOST2...
Just remember, port 9200 is by default used for all the hosts to bind elasticsearch.