Ben Rockwood writes:
> I'm curious if its possible (speaking in terms of XML semantics) to allow
> an element to defined for a service and then over-riden by a later
> instance.
>
> An example would be to define a method_context within the service element,
> then to create multiple instance, only one of which uses a different
> method_context which would be defined within the instance element to
> effectively "over-ride" the (for lack of a better term) global definition.
>
> Based on my testing, as it stands now, anything that will differ between
> instances must be defined within each instance locally and not "shared"
> globally for the service.
>
> Being able to do this seems more intuitive to me, but maybe isn't good
> style. I'm not sure. Just an idea.
>
> benr.
>
>
> This message posted from opensolaris.org
> _______________________________________________
> smf-discuss mailing list
> smf-discuss at opensolaris.org
I ran a little test, and it appears to me that an instance will inherit the
service's method_context unless it is overriden in the instance
definition. Here is my test manifest:
<?xml version="1.0"?>
<!DOCTYPE service_bundle SYSTEM "/usr/share/lib/xml/dtd/service_bundle.dtd.1">
<!--
Service manifest to see if instance can override service method
context.
-->
<service_bundle type='manifest' name='nopkg:bogus_1'>
<service
name='system/bogus_1'
version='1'
type='service'>
<dependency
name='usr'
type='service'
grouping='require_all'
restart_on='none'>
<service_fmri value='svc:/system/filesystem/local' />
</dependency>
<method_context working_directory='/var/tmp'>
<method_credential user='smf_tst1' group='other' />
<method_environment>
<envvar name='BOGUS' value='smft1' />
</method_environment>
</method_context>
<exec_method
type='method'
name='start'
exec='/var/tmp/bogus_1 start'
timeout_seconds='60' />
<exec_method
type='method'
name='stop'
exec='/var/tmp/bogus_1 stop'
timeout_seconds='60' />
<exec_method
type='method'
name='refresh'
exec='/var/tmp/bogus_1 refresh'
timeout_seconds='60' />
<exec_method
type='method'
name='restart'
exec='/var/tmp/bogus_1 restart'
timeout_seconds='60' />
<property_group name='startd' type='framework'>
<propval name='duration' type='astring'
value='transient' />
</property_group>
<instance name='a' enabled='false'>
<method_context working_directory='/var/tmp'>
<method_credential user='root' group='staff' />
<method_environment>
<envvar name='BOGUS' value='a' />
</method_environment>
</method_context>
</instance>
<instance name='b' enabled='false'>
</instance>
<stability value='Unstable' />
<template>
<common_name>
<loctext xml:lang='C'>
Manifest to test inheritance
</loctext>
</common_name>
<documentation>
</documentation>
</template>
</service>
</service_bundle>
