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https://issues.apache.org/jira/browse/DTACLOUD-10?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13233783#comment-13233783
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Ronelle Landy commented on DTACLOUD-10:
---------------------------------------
Using the Mock driver, the following information on hardware profiles available
is returned:
curl -X GET --user "username:password"
"http://localhost:3010/api/hardware_profiles?format=xml";
<?xml version='1.0' encoding='utf-8' ?>
<hardware_profiles>
<hardware_profile href='http://localhost:3010/api/hardware_profiles/m1-small'
id='m1-small'>
<name>m1-small</name>
<property kind='fixed' name='architecture' unit='label' value='i386' />
<property kind='fixed' name='memory' unit='MB' value='1740.8' />
<property kind='fixed' name='storage' unit='GB' value='160' />
<property kind='fixed' name='cpu' unit='count' value='1' />
</hardware_profile>
<hardware_profile href='http://localhost:3010/api/hardware_profiles/m1-large'
id='m1-large'>
<name>m1-large</name>
<property kind='fixed' name='architecture' unit='label' value='x86_64' />
<property kind='range' name='memory' unit='MB' value='10240'>
<param href='http://localhost:3010/api/instances' method='post'
name='hwp_memory' operation='create' />
<range first='7680' last='15360' />
</property>
<property kind='enum' name='storage' unit='GB' value='850'>
<param href='http://localhost:3010/api/instances' method='post'
name='hwp_storage' operation='create' />
<enum>
<entry value='850' />
<entry value='1024' />
</enum>
</property>
<property kind='range' name='cpu' unit='count' value='1'>
<param href='http://localhost:3010/api/instances' method='post'
name='hwp_cpu' operation='create' />
<range first='1' last='6' />
</property>
</hardware_profile>
<hardware_profile
href='http://localhost:3010/api/hardware_profiles/m1-xlarge' id='m1-xlarge'>
<name>m1-xlarge</name>
<property kind='fixed' name='architecture' unit='label' value='x86_64' />
<property kind='range' name='memory' unit='MB' value='12288'>
<param href='http://localhost:3010/api/instances' method='post'
name='hwp_memory' operation='create' />
<range first='12288' last='32768' />
</property>
<property kind='enum' name='storage' unit='GB' value='1024'>
<param href='http://localhost:3010/api/instances' method='post'
name='hwp_storage' operation='create' />
<enum>
<entry value='1024' />
<entry value='2048' />
<entry value='4096' />
</enum>
</property>
<property kind='fixed' name='cpu' unit='count' value='4' />
</hardware_profile>
<hardware_profile href='http://localhost:3010/api/hardware_profiles/opaque'
id='opaque'>
<name>opaque</name>
</hardware_profile>
</hardware_profiles>
Looking at the Opaque hardware profile, an 'empty' profile is returned ie;
there are no 'nil' values, just no fields listed for cpu, arch etc. Not sure if
this addresses the concern or not.
> Hardware Profile Properties do not distinguish, values that determine,
> nothing, everything, something
> -----------------------------------------------------------------------------------------------------
>
> Key: DTACLOUD-10
> URL: https://issues.apache.org/jira/browse/DTACLOUD-10
> Project: DeltaCloud
> Issue Type: Bug
> Reporter: Martyn Taylor
> Assignee: Michal Fojtik
>
> At present HWP's can contain nil values for each of its cpu, memory, storage
> and architecture fields.
> This can be seen when using the MockDriver, in the Opaque HWP. In this case
> nil means that this HWP does not offer anything in this HWP Property i.e.
> CPU, mem etc....
> In addition, GoGrid does not allow us to specify the architecture for of its
> HWP. but it will give you an instance of some arbitrary architecture at
> runtime. This case is also currently represented as 'nil'.
> Using nil in this was causes ambiguity, In the two cases above, nil in one
> sense means "we offer nothing", nil in another means "we offer something, but
> what we offer is not specified"
> There needs to be some way to determine the difference between the two cases:
> A proposed solution to this problem, is to add an extra 'enum' value to the
> 'kind' field of the HWP Property Object, This can be used to represent an
> 'unspecified' value, as in the GoGrid case above. nil can then continue to be
> used as representing "offer nothing" as in the MockDriver case.
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