154 lines
6.9 KiB
XML
154 lines
6.9 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE section [
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<!-- Some useful entities borrowed from HTML -->
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<!ENTITY ndash "–">
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<!ENTITY mdash "—">
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<!ENTITY hellip "…">
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]>
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<section xmlns="http://docbook.org/ns/docbook"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0"
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xml:id="dashboard_launch_instances_from_image">
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<title>Launch an instance from an image</title>
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<?dbhtml stop-chunking?>
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<para>When you launch an instance from an image, OpenStack creates
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a local copy of the image on the Compute node where the
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instance starts.</para>
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<procedure>
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<step>
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<para>Log in to the dashboard, choose a project,
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and click the <guilabel>Images &
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Snapshot</guilabel> category.</para>
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<para>The dashboard shows the images that have been
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uploaded to OpenStack Image Service and are available
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for this project.</para>
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</step>
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<step>
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<para>Select an image and click
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<guibutton>Launch</guibutton>.</para>
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</step>
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<step>
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<para>In the <guilabel>Launch Instance</guilabel> window,
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specify the following values:</para>
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<informaltable rules="all">
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<col width="30%"/>
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<col width="70%"/>
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<thead>
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<tr>
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<th colspan="2" align="center"
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><guilabel>Details</guilabel> tab</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td><para><guilabel>Instance
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Source</guilabel></para></td>
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<td><para>Image or snapshot.</para></td>
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</tr>
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<tr>
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<td><para><guilabel>Instance
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Name</guilabel></para></td>
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<td><para>The name to assign to the virtual
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machine.</para></td>
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</tr>
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<tr>
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<td>
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<para><guilabel>Flavor</guilabel></para></td>
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<td><para>The size of the virtual machine to
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launch.</para></td>
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</tr>
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<tr>
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<td><para><guilabel>Instance
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Count</guilabel></para></td>
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<td><para>To launch multiple instances, enter
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a value greater than 1. Default is 1.
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</para></td>
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</tr>
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<tr>
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<th colspan="2" align="center"
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><guilabel>Access &
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Security</guilabel> tab</th>
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</tr>
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<tr>
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<td><para><guilabel>Keypair</guilabel></para></td>
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<td><para>A keypair.</para>
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<para>In case an image uses a static root
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password or a static key set (neither
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is recommended), you do not need to
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provide a keypair to launch the
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instance.</para></td>
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</tr>
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<tr>
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<td><para><guilabel>Security
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Groups</guilabel></para></td>
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<td><para>Activate the security groups that
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you want to assign to the
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instance.</para>
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<para>Security groups are a kind of cloud
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firewall that define which incoming
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network traffic is forwarded to
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instances. For details, see <xref
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linkend="security_groups_add_rule"
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/>.</para>
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<para>If you have not created any security
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groups, you can assign only the
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default security group to the
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instance.</para></td>
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</tr>
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<tr>
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<th colspan="2" align="center"
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><guilabel>Volume Options</guilabel>
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tab</th>
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</tr>
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<tr>
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<td><para><guilabel>Volume
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Options</guilabel></para></td>
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<td><para>Not applicable when you launch an
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instance from an image.</para><para>To
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launch from a volume or volume
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snapshot, select the appropriate
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option in the <guilabel>Volume
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Options</guilabel> drop-down list.
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Then, choose the volume or
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snapshot.</para>
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<para>For information about how to create
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a bootable volume, see <xref
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linkend="dashboard_launch_instances_from_volume"
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/>.</para></td>
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</tr>
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<tr>
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<th colspan="2" align="center"
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><guilabel>Post-Creation</guilabel>
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tab</th>
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</tr>
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<tr>
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<td><para><guilabel>Customization
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Script</guilabel></para></td>
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<td><para>A customization script that runs
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after your instance
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launches.</para></td>
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</tr>
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</tbody>
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</informaltable>
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</step>
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<step>
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<para>Click <guibutton>Launch</guibutton>. The instance
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starts on a Compute node in the cloud.</para>
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</step>
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<step>
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<para>The <guilabel>Instances</guilabel> category shows
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the instance name, its private and public IP
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addresses, size, status, task, and power state.</para>
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</step>
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<step>
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<para>If you did not provide a keypair, security groups,
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or rules so far, users can only access the instance
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from inside the cloud through VNC. Even pinging the
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instance is not possible. To access the instance
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through a VNC console, see <xref
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linkend="instance_console"/>.</para>
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</step>
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</procedure>
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</section>
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