openstack
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openstack-manuals
Code Issues Proposed changes

Adds hypervisor_version_requires (ImagePropertiesFilter) 

This is to prevent instances with newer tools from being
provisioned on older hypervisors.

Added comparison of hypervisor version from the
compute-node and image metadata in the image properties
filter.

In host scheduler image_prop_filter, the hypervisor_version_requires
image properties, if available, is compared to the host_state's
hypervisor_version, if available.

hypervisor_version_requires should be added on the image
as metadata and should have a operator and version value.
Examples : ">=6.0", ">6.0, <6.2", ""!=6.1".

Change-Id: I77dce6a5c28b5a25766b0273dc58a9dbb08defdd
Closes-bug: 1246231
This commit is contained in:
OlgaGusarenko 2015-03-11 17:05:40 +02:00
parent 0e5118fc20
commit 6cd10d13cf
1 changed files with 36 additions and 17 deletions
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53
doc/config-reference/compute/section_compute-scheduler.xml
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@ -478,35 +478,54 @@ aggregate_image_properties_isolation_separator = .</programlisting>
instance's image. It passes hosts that can support the
specified image properties contained in the instance.
Properties include the architecture, hypervisor type,
and virtual machine mode. for example, an instance
might require a host that runs an ARM-based processor
and QEMU as the hypervisor. An image can be decorated
hypervisor version (for Xen hypervisor type only),
and virtual machine mode.</para>
<para>For example, an instance
might require a host that runs an ARM-based processor,
and QEMU as the hypervisor. You can decorate an image
with these properties by using:</para>
<screen><prompt>$</prompt> <userinput>glance image-update img-uuid --property architecture=arm --property hypervisor_type=qemu</userinput></screen>
<para>The image properties that the filter checks for
are:</para>
<para>The image properties that the filter checks for are:</para>
<itemizedlist>
<listitem>
<para><literal>architecture</literal>:
Architecture describes the machine
describes the machine
architecture required by the image. Examples
are i686, x86_64, arm, and ppc64.</para>
are <literal>i686</literal>, <literal>x86_64</literal>,
<literal>arm</literal>, and <literal>ppc64</literal>.</para>
</listitem>
<listitem>
<para><literal>hypervisor_type</literal>:
Hypervisor type describes the hypervisor
required by the image. Examples are xen, qemu,
and xenapi. Note that qemu is used for both
QEMU and KVM hypervisor types.</para>
describes the hypervisor required by the image.
Examples are <literal>xen</literal>,
<literal>qemu</literal>, and <literal>xenapi</literal>.</para>
<note><para><literal>qemu</literal> is used for both
QEMU and KVM hypervisor types.</para></note>
</listitem>
<listitem>
<para><literal>vm_mode</literal>: Virtual machine
mode describes the hypervisor application
<para><literal>hypervisor_version_requires</literal>:
describes the hypervisor version required by the image.
The property is supported for Xen hypervisor type only.
It can be used to enable support
for multiple hypervisor versions,
and to prevent instances with newer
Xen tools from being provisioned on an older version
of a hypervisor. If available, the property value
is compared to the hypervisor version of the compute host.</para>
<para>To filter the hosts by the hypervisor version,
add the <literal>hypervisor_version_requires</literal> property
on the image as metadata and pass an operator and a
required hypervisor version as its value:</para>
<screen><prompt>$</prompt> <userinput>glance image-update img-uuid --property hypervisor_type=xen --property hypervisor_version_requires=">=4.3"</userinput></screen>
</listitem>
<listitem>
<para><literal>vm_mode</literal>: describes the hypervisor application
binary interface (ABI) required by the image.
Examples are 'xen' for Xen 3.0 paravirtual
ABI, 'hvm' for native ABI, 'uml' for User Mode
Linux paravirtual ABI, exe for container virt
executable ABI.</para>
Examples are <literal>xen</literal> for Xen 3.0 paravirtual
ABI, <literal>hvm</literal> for native ABI,
<literal>uml</literal> for User Mode
Linux paravirtual ABI, <literal>exe</literal>
for container virt executable ABI.</para>
</listitem>
</itemizedlist>
</section>