Launch and Access Your Instance

Creating a Virtual Machine

Create and launch a VM OpenStack Command
See what flavors (sizes) are available openstack flavor list
See what Images are available
The Jetstream team makes Featured- *
images available from which to build.
openstack image list
Create and boot an instance

  • Make sure your SSH keyname matches
  • your-instance-name is the name of the
    instance; make it something meaningful for you.
  • Choose an appropriate flavor from the list in the
    first command
  • Choose an appropriate image from the list in the
    second command
openstack server create <my-server-name> \
--flavor FLAVOR \
--image IMAGE-NAME \
--key-name <my-keypair-name> \
--security-group <my-security-group-name> \

Add the following optional flag to the above
server create step if you wish to not use the
default ephemeral disk and instead
create a custom volume-backed instance
(storage counts against your quota)

  • size in GB
  • Note your volumes_attached id from the server create output

--boot-from-volume <size>

Optional Rename volume:

openstack volume set --name '<my-server-name>-vol' <volumes_attached_id>

If you have multiple networks, you’ll need
to also include this line in the
server create step

See Create a network in the CLI for more

--nic net-id=<my-network-name>
Create a public IP address for an instance openstack floating ip create public
Add that public IP address with that instance openstack server add floating ip my-server-name

Logging into your Virtual Machine

Once your instance is up and has a floating IP, you are ready to ssh in and use it. If your ssh key is one of the default names (e.g. id_rsa or id_ed25519) and is in your ~/.ssh dir, you won’t need to specify the location of the key. Otherwise, you’ll need to use the ssh option -i path/key. For example:

ssh -i ~/.ssh/my-custom-key-name user@ip.number

Each distribution has a different default user. We will show examples for each without the -i path to your ssh key, assuming you have ~/.ssh/id_rsa or ~/.ssh/id_ed25519 as your default key:

For Ubuntu 18 or 20:


For CentOS 7:


For Rocky 8:


You should be able to access and use your VM now! Please see Instance Management Actions in the CLI for all instance management actions.