C Sébastien Han

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Tip: Add a Specific Keypair to a Flavor

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Folsom brought a lot of new features, however while playing with nova-manage, I came across a new option, option that I found very useful and that I’m about to share with you.

Basically in Essex you had:

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$ sudo nova-manage instance_type
/usr/bin/nova-manage category action [<args>]
Available actions for instance_type category:
    create
    delete
    list

Now in Folsom, you have:

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$ sudo nova-manage instance_type
/usr/bin/nova-manage category action [<args>]
Available actions for instance_type category:
    create
    delete
    list
    set_key
    unset_key

And respectively you’ll find the update in the nova command:

Essex version:

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$ nova help| grep key
            [--region_name REGION_NAME] [--apikey APIKEY]
    keypair-add         Create a new key pair for use with instances
    keypair-delete      Delete keypair by its id
    keypair-list        Print a list of keypairs for a user
  --apikey APIKEY, --password APIKEY

Folsom version:

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$ nova help | grep key
    flavor-key          Set or unset extra_spec for a flavor.
    keypair-add         Create a new key pair for use with instances
    keypair-delete      Delete keypair by its id
    keypair-list        Print a list of keypairs for a user

You will notice that this option is not available from the Horizon Dashboard.

This is my flavors:

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$ sudo nova-manage instance_type list | grep tiny
tiny: Memory: 512MB, VCPUS: 1, Root: 0GB, Ephemeral: 0Gb, FlavorID: 1, Swap: 0MB, RXTX Factor: 1.0, public, ExtraSpecs {}

Now

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$ sudo nova-manage instance_type set_key --name=xlarge --key=admin
$ sudo nova-manage instance_type list | grep tiny
tiny: Memory: 512MB, VCPUS: 1, Root: 0GB, Ephemeral: 0Gb, FlavorID: 1, Swap: 0MB, RXTX Factor: 1.0, public, ExtraSpecs {u'admin': None}

Now try to boot up a new instance with this flavor from the dashboard and avoid the second tab (access & security).


Enjoy ;-). Folsom is full of little surprises :D

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