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Openstack Servers

To read more about Openstack Servers using the upstream docs.

List and view servers

openstack server list
    [--quote {all,minimal,none,nonnumeric}]
    [--reservation-id <reservation-id>]
    [--ip <ip-address-regex>]
    [--ip6 <ip-address-regex>]
    [--name <name-regex>]
    [--instance-name <server-name>]
    [--status <status>]
    [--flavor <flavor>]
    [--image <image>]
    [--host <hostname>]
    [--all-projects]
    [--project <project>]
    [--project-domain <project-domain>]
    [--user <user>]
    [--user-domain <user-domain>]
    [--long]
    [-n]
    [--marker <server>]
    [--limit <num-servers>]
    [--deleted]
    [--changes-since <changes-since>]

Create a new server

openstack server create
    (--image <image> | --volume <volume>)
    --flavor <flavor>
    [--security-group <security-group>]
    [--key-name <key-name>]
    [--property <key=value>]
    [--file <dest-filename=source-filename>]
    [--user-data <user-data>]
    [--availability-zone <zone-name>]
    [--block-device-mapping <dev-name=mapping>]
    [--nic <net-id=net-uuid,v4-fixed-ip=ip-addr,v6-fixed-ip=ip-addr,port-id=port-uuid,auto,none>]
    [--network <network>]
    [--port <port>]
    [--hint <key=value>]
    [--config-drive <config-drive-volume>|True]
    [--min <count>]
    [--max <count>]
    [--wait]
    <server-name>

Delete a server

openstack server delete [--wait] <server> [<server> ...]

Launch a server from a snapshot

Create a snapshot of the instance

Note

If necessary, list the instances to view the instance name with the list server command above.

  1. Shut down the source VM before you take the snapshot to ensure that all data is flushed to disk. Use the openstack server stop command to shut down the instance:

    openstack server stop myInstance
    
  2. Use the openstack server list command to confirm that the instance shows a SHUTOFF status.

  3. Use the openstack server image create command to take a snapshot:

    openstack server image create myInstance --name myInstanceSnapshot
    

    The above command creates the image myInstance by taking a snapshot of a running server.

  4. Use the openstack image list command to check the status until the status is active:

    openstack image list
    

Download the snapshot

Note

Get the image id from the image list command (seen above).

Download the snapshot by using the image ID:

openstack image save --file snapshot.raw {Image ID}

Make the image available to the new environment, either through HTTP or direct upload to a machine (scp).

Import the snapshot to the new env

In the new project or cloud environment, import the snapshot:

openstack image create NEW_IMAGE_NAME \
  --container-format bare --disk-format qcow2 --file IMAGE_URL

Boot a new sever from the snapshot

In the new project or cloud environment, use the snapshot to create the new instance:

openstack server create --flavor m1.tiny --image myInstanceSnapshot myNewInstance

Launch a server from a volume

Boot instance from volume

You can create a bootable volume from an existing image, volume, or snapshot. This procedure shows you how to create a volume from an image and use the volume to boot an instance.

  1. List available images, noting the ID of the image that you wish to use.

    openstack image list
    
  2. Create a bootable volume from the chosen image.

    openstack volume create \
    --image {Image ID} --size 10 \
    test-volume
    
  3. Create a server, specifying the volume as the boot device.

    openstack server create \
    --flavor $FLAVOR --network $NETWORK \
    --volume {Volume ID}\
    --wait test-server
    
  4. List volumes once again to ensure the status has changed to in-use and the volume is correctly reporting the attachment.

    openstack volume list
    
    openstack server volume list test-server