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Can't SSH after creating an Instance from Command line

I am creating an instance from command line using command

nova boot --no-service-net --no-public --disk-config AUTO --config-drive=true --flavor 2 --key-name key1 --image c28bc1e8-a25f-413c-9e13-fecdd5d6f522 test

when instance launched successfully I tried to ssh instance by using this command

ssh -i key1.key [email protected]

but it gives me an permission error,

Permission denied (publickey,gssapi-keyex,gssapi-with-mic)

And when I create an instance from Dashboard/Horizon. I can ssh without any problem or issue with the same command ssh -i key2.key [email protected]

Guide me what is the problem why I can't ssh after creating an instance from command line.

Solution

  • There was a problem in ssh key generation, I was generating ssh key like

    ssh-keygen -t rsa -f newdemokey.key

    and then add this key into nova keypair-list. That was not working to ssh instance

    But the best way is to generate ssh key is,

    ssh-keygen

    And add this key into nova keypair-list,

    nova keypair-add --pub-key ~/.ssh/id_rsa.pub test-key

    It will work with the new instance to ssh.