sbin init when ip binds public address in demo docker

sbin can't support deploy and start in onebox when ip is public address. It'll do ssh ip to deploy and start.(Need to install ssh and auth localhost, not necessary)
But if user wants to remote access the cluster in demo docker, we should support it.

Methods:
1. local in hosts config
2. an env variable to force deploy/start in local

Look at the sbin init script to understand the deployment and startup flow. The issue mentions handling public IP addresses for remote cluster access in demo Docker. Check how IP binding and SSH are currently managed. The solution involves modifying the script to support local deployment via hosts config or an environment variable, avoiding SSH requirements. Test the changes in a Docker environment to ensure remote access works.

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