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I made hadoop image based on centos using dockerfile. There are 4 nodes. I want to configure cluster using ssh-copy-id. But an error has occurred.
ERROR: ssh: connect to host [ip] port 22: Connection refused
How can I solve this problem?
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sshfollows a client-server architecture. So, theopenssh-serverhas to be installed in the container. Nowssh-copy-idand other commands should run if the ip address is routable.