openstack/openstack-manuals
Code Issues Proposed changes

Add scope prefix in configuring host aggregates

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Using unscoped key pairs will cause conflicts between
ComputeCapabilitiesFilter and AggregateInstanceExtraSpecsFilter.
And that conflicts lead to return 0 hosts of
ComputeCapabilitiesFilter.

This patch adds 'aggregate_instance_extra_specs' scope when
configuring host aggregates to avoid above conflicts.

Closes-Bug: #1445285

Change-Id: I4af09b1a556f5f9c56fb4e6fb3098fc01fb386bf
This commit is contained in:
Luo Gangyi 2015-04-20 00:28:44 -07:00 committed by Christian Berendt
parent c9f557e7cd
commit 1583bace50
1 changed files with 23 additions and 23 deletions
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46
doc/common/section_cli_nova_host_aggregates.xml
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@ -206,39 +206,39 @@
the <replaceable>ssd.large</replaceable> flavor called with an ID of
6, 8&nbsp;GB of RAM, 80&nbsp;GB root disk, and four vCPUs.</para>
<screen><prompt>$</prompt> <userinput>nova flavor-create <replaceable>ssd.large</replaceable> <replaceable>6</replaceable> <replaceable>8192</replaceable> <replaceable>80</replaceable> <replaceable>4</replaceable></userinput>
<computeroutput>+----+-----------+-----------+------+-----------+------+-------+-------------+-----------+-------------+
| ID | Name | Memory_MB | Disk | Ephemeral | Swap | VCPUs | RXTX_Factor | Is_Public | extra_specs |
+----+-----------+-----------+------+-----------+------+-------+-------------+-----------+-------------+
| 6 | ssd.large | 8192 | 80 | 0 | | 4 | 1 | True | {} |
+----+-----------+-----------+------+-----------+------+-------+-------------+-----------+-------------+</computeroutput></screen>
<computeroutput>+----+-----------+-----------+------+-----------+------+-------+-------------+-----------+
| ID | Name | Memory_MB | Disk | Ephemeral | Swap | VCPUs | RXTX_Factor | Is_Public |
+----+-----------+-----------+------+-----------+------+-------+-------------+-----------+
| 6 | ssd.large | 8192 | 80 | 0 | | 4 | 1.0 | True |
+----+-----------+-----------+------+-----------+------+-------+-------------+-----------+</computeroutput></screen>
<para>Once the flavor is created, specify one or more
key-value pairs that match the key-value pairs on the host
aggregates. In this case, that is the
<replaceable>ssd=true</replaceable> key-value pair. Setting a
aggregates with scope aggregate_instance_extra_specs. In this case, that is the
<replaceable>aggregate_instance_extra_specs:ssd=true</replaceable> key-value pair. Setting a
key-value pair on a flavor is done using the <command>nova
flavor-key</command> command.</para>
<screen><prompt>$</prompt> <userinput>nova flavor-key <replaceable>ssd.large</replaceable> set <replaceable>ssd=true</replaceable></userinput></screen>
<screen><prompt>$</prompt> <userinput>nova flavor-key <replaceable>ssd.large</replaceable> set <replaceable>aggregate_instance_extra_specs:ssd=true</replaceable></userinput></screen>
<para>Once it is set, you should see the
<literal>extra_specs</literal> property of the
<literal>ssd.large</literal> flavor populated with a
key of <literal>ssd</literal> and a corresponding value of
<literal>true</literal>.</para>
<screen><prompt>$</prompt> <userinput>nova flavor-show ssd.large</userinput>
<computeroutput>+----------------------------+-------------------+
| Property | Value |
+----------------------------+-------------------+
| OS-FLV-DISABLED:disabled | False |
| OS-FLV-EXT-DATA:ephemeral | 0 |
| disk | 80 |
| extra_specs | {u'ssd': u'true'} |
| id | 6 |
| name | ssd.large |
| os-flavor-access:is_public | True |
| ram | 8192 |
| rxtx_factor | 1.0 |
| swap | |
| vcpus | 4 |
+----------------------------+-------------------+</computeroutput></screen>
<computeroutput>+----------------------------+--------------------------------------------------+
| Property | Value |
+----------------------------+--------------------------------------------------+
| OS-FLV-DISABLED:disabled | False |
| OS-FLV-EXT-DATA:ephemeral | 0 |
| disk | 80 |
| extra_specs | {u'aggregate_instance_extra_specs:ssd': u'true'} |
| id | 6 |
| name | ssd.large |
| os-flavor-access:is_public | True |
| ram | 8192 |
| rxtx_factor | 1.0 |
| swap | |
| vcpus | 4 |
+----------------------------+--------------------------------------------------+</computeroutput></screen>
<para>Now, when a user requests an instance with the
<literal>ssd.large</literal> flavor, the scheduler
only considers hosts with the <literal>ssd=true</literal>