229 lines
7.6 KiB
ReStructuredText
229 lines
7.6 KiB
ReStructuredText
.. _compute-tab:
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=========================================
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Launch and manage instances (Compute tab)
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=========================================
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The OpenStack Compute service provides a way to provision compute instances
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(aka virtual servers). It supports creating virtual machines, baremetal
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servers (through the use of ironic), and has limited support for system
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containers. For detailed information, refer to the
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`OpenStack Nova Guide <https://docs.openstack.org/nova/latest/>`__.
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Create a key pair
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-----------------
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#. Log in to the dashboard.
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#. Select the appropriate project from the Switch Project menu at the top left.
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#. On the :guilabel:`Console` page, open the :guilabel:`Compute` tab and
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click :guilabel:`Key Pairs` category.
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#. Click :guilabel:`Create Keypair`.
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#. In the :guilabel:`Create Volume` dialog box, select one of
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:guilabel:`Create Type` options:
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* :guilabel:`Create Keypair`: If you choose this option, enter a
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:guilabel:`Name`.
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* :guilabel:`Import Keypair`: If you choose this option, a new field for
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:guilabel:`Public Key` displays. Enter the :guilabel:`Name` of your key
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pair, copy the public key into the :guilabel:`Public Key` box.
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#. Click :guilabel:`OK`.
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The Dashboard lists the key pair on the :guilabel:`Key Pairs` tab.
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Launch an instance
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------------------
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#. Log in to the dashboard.
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#. Select the appropriate project from the Switch Project menu at the top left.
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#. On the :guilabel:`Console` page, open the :guilabel:`Compute` tab and
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click :guilabel:`Instances` category.
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#. Click :guilabel:`Create Instance`.
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#. On the :guilabel:`Create Instance` page, enter the instance values.
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:guilabel:`Available Zone`: The availability zone from which to launch the server.
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:guilabel:`Specification`: Select a flavor for your server instance.
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:guilabel:`Start Source`: Select one of the following options:
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* Image: If choose this option, a new field for :guilabel:`Operating System`
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displays. You can select the image from the list. And enter the size of the
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volume used as :guilabel:`System Disk` of the instance.
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.. note::
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click the :guilabel:`Deleted with the instance` option to delete
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the volume on deleting the instance.
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* Instance Snapshot: Using this option, you can boot from a volume
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snapshot and create a new volume by choosing :guilabel:`Instance Snapshot`
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from a list.
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* Bootable Volume: If you choose this option, a new field for
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:guilabel:`Bootable Volume` displays. You can select the volume from the list.
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:guilabel:`Data Disk`: The disks mounted on the instance.
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#. Click :guilabel:`Next: Network Config`.
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You can choose :guilabel:`Networks`, :guilabel:`Ports` or a mix of both for
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the instance network config.
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:guilabel:`Networks`: Add a network to the instance. If you specify the networks,
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:guilabel:`Virtual LAN` and :guilabel:`Security Group` are required fields.
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:guilabel:`Virtual LAN`: Specify a subnet of the network and assign fixed IP
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address automatically or manually for the instance.
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:guilabel:`Security Group`: Security groups are a kind of cloud firewall that
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define which incoming network traffic is forwarded to instances.
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:guilabel:`Ports`: Activate the ports that you want to assign to the instance.
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.. note::
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The port executes its own security group rules by default.
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#. Click :guilabel:`Next: System Config`.
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:guilabel:`Name`: The server name.
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:guilabel:`Login Type`: Select one of the following options:
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* Keypair: If you choose this option, a new field for
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:guilabel:`Keypair` displays. The key pair allows you to SSH into your
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newly created instance. You can select an existing key pair, import a
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key pair, or generate a new key pair.
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* Password: Enter the :guilabel:`Login Password` and confirm it. And you
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can login to the instance by using password.
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#. Click :guilabel:`Next: Confirm Config` and confirm your choice.
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The instance are created and you can wait for a few seconds to
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follow the changes of the instance list data or manually refresh the data
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to get the final display result.
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Create an instance snapshot
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----------------------------
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#. Log in to the dashboard.
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#. Select the appropriate project from the Switch Project menu at the top left.
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#. On the :guilabel:`Console` page, open the :guilabel:`Compute` tab and
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click :guilabel:`Instances` category.
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#. Select an instance to create a snapshot from it.
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#. In the :guilabel:`Action` column, select :guilabel:`Backups & Snapshots` and
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click :guilabel:`Create Snapshot`.
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#. In the :guilabel:`Create Instance Snapshot` dialog box, enter a snapshot name.
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#. Click :guilabel:`OK`.
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The dashboard shows the new instance snapshot in :guilabel:`Instance Snapshots` tab.
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Control the state of an instance
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---------------------------------
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#. Log in to the dashboard.
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#. Select the appropriate project from the Switch Project menu at the top left.
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#. On the :guilabel:`Console` page, open the :guilabel:`Compute` tab and
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click :guilabel:`Instances` category.
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#. Select the instance for which you want to change the state.
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#. In the :guilabel:`Action` column of the instance, click
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:guilabel:`Instance Status` and select the status.
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Allocate a floating IP address to an instance
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----------------------------------------------
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#. Log in to the dashboard.
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#. Select the appropriate project from the Switch Project menu at the top left.
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#. On the :guilabel:`Console` page, open the :guilabel:`Compute` tab and
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click :guilabel:`Instances` category.
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#. In the :guilabel:`Action` column, select :guilabel:`Related Resources`
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and click :guilabel:`Associate Floating IP`.
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#. In the :guilabel:`Associate Floating IP` dialog box, select
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:guilabel:`Instance IP` and :guilabel:`Floating Ip Address`.
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#. Click :guilabel:`OK`.
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.. note::
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To disassociate an IP address from an instance, click the
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:guilabel:`Disassociate Floating Ip` button.
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Upload an image
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---------------
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Images are used to create virtual machine instances within the cloud.
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For information about creating image files, see the
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`OpenStack Glance Guide <https://docs.openstack.org/glance/latest/>`__.
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#. Log in to the dashboard.
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#. Select the appropriate project from the Switch Project menu at the top left.
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#. On the :guilabel:`Console` page, open the :guilabel:`Compute` tab and
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click :guilabel:`Images` category.
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#. Click :guilabel:`Create Image`.
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#. On the :guilabel:`Create Image` page, enter the following values:
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:guilabel:`Name`: The name of the image.
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:guilabel:`Upload Type`: Select one of the following options:
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* Upload File: If choose this option, click :guilabel:`Click to Upload`
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to upload the binary image data file.
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* File URL: If choose this option, enter the :guilabel:`File URL`.
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:guilabel:`Format`: Select the image format (for example, QCOW2) for the image.
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:guilabel:`OS`: Select the image operating system (for example, CentOS).
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:guilabel:`OS Version`: The image operating system version.
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:guilabel:`OS Admin`: The administrator name of image operating system.
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in general, administrator for Windows, root for Linux.
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:guilabel:`Min System Disk (GiB)`: Amount of disk space in GB that is
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required to boot the image.
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:guilabel:`Min Memory (GiB)`: Amount of Memory in GB that is required
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to boot the image.
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:guilabel:`Protected`: Image protection for deletion.
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:guilabel:`Usage Type`: Select usage type (for example, Common Server)
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for the image.
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:guilabel:`Description`: A human-readable description for the resource.
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#. Click :guilabel:`Confirm`.
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The image is queued to be uploaded. It might take some time before
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the status changes from Queued to Active.
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