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Keypairs (SSH keys)

A keypair is basically a ssh key allowing you to login to your Linux instance

Using your existing SSH key

Assuming your existing ssh public key is located at ~/.ssh/ssh_my_rsa_key.pub

Import it using the following command:

taylor@laptop:~$ openstack keypair create --public-key ~/.ssh/ssh_my_rsa_key.pub my_keypair
+-------------+-------------------------------------------------+
| Field       | Value                                           |
+-------------+-------------------------------------------------+
| fingerprint | 53:c0:03:5f:27:6f:c2:66:b4:e4:f3:26:e0:f8:82:4a |
| name        | my_keypair                                      |
| user_id     | b1580497f51e4d10b9110c60c154562c                |
+-------------+-------------------------------------------------+

Keypair1

  • Name your keypair and import your public key

Keypair2

$ ssh -i ~/.ssh/ ~/.ssh/ssh_my_rsa_key *adminuser*@my-instance-name

Using a new keypair

A new keypair can also be created for use, such as with a dedicated service account or daemon.

$ openstack keypair create my_keypair > ~/.ssh/my_keypair
$ chmod 600 ~/.ssh/my_keypair

The private key is saved to ~/.ssh/robotkey and can then be used for instance creation (using the --key-pair argument on the command line) and for ssh using

Keypair2

  • Name your keypair and click on Create Key Pair

Keypair4

  • Your keypair has been downloaded
$ ssh -i ~/.ssh/my_keypair *adminuser*@my-instance-name
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