Allow socket-binding-group-refType to override default-interface
I want all the host controllers in my domain to use the same socket-binding-group. However, each host controller can have multiple servers, each with its own IP, but each IP still reuses the same port number (yet still a unique IP+port combo). The problem is that the socket-binding-group-refType will not let me override the @default-interface value from the referent socket-binding-group. I am forced to create a second, equally verbose, socket-binding-group exactly like the first group in every way, except for the @default-interface. I wish to avoid this. My particular scenario cannot rely on @port-offset because my hardware load-balancer needs all nodes in the same pool to use the same ports.
Consider the following configuration. The domain defines the reused template socket-binding-group as @name="standard-sockets" with @default-interface="public". My host configuration would love to fire up a second server using standard-sockets as a template, yet override @default-interface to public-two, where my second IP is defined.
domain.xml
{code:xml}
...
<interfaces>
<interface name="management" />
<interface name="public" />
</interfaces>
<socket-binding-groups>
<socket-binding-group name="standard-sockets" default-interface="public">
<socket-binding name="ajp" port="8009" />
<socket-binding name="http" port="8080" />
<socket-binding name="https" port="8443" />
<socket-binding name="osgi-http" interface="management" port="8090" />
<socket-binding name="remoting" port="4447" />
<socket-binding name="txn-recovery-environment" port="4712" />
<socket-binding name="txn-status-manager" port="4713" />
<outbound-socket-binding name="mail-smtp">
<remote-destination host="localhost" port="25" />
</outbound-socket-binding>
</socket-binding-group>
</socket-binding-groups>
<server-groups>
<server-group name="prod-server-group" profile="default">
<socket-binding-group ref="standard-sockets" />
</server-group>
</server-groups>
...
{code}
host.xml
{code:xml}
...
<interfaces>
<interface name="public">
<inet-address value="10.10.10.1" />
</interface>
<interface name="public-two">
<inet-address value="10.10.10.2" />
</interface>
</interfaces>
...
<servers>
<server name="server-one" group="prod-server-group" auto-start="true">
<jvm name="jvm6g" />
</server>
<server name="server-two" group="prod-server-group" auto-start="false">
<jvm name="jvm2g" />
<socket-binding-group ref="standard-sockets" default-interface="public-two" />
</server>
</servers>
...
{code}
That last socket-binding-group is currently illegal. The socket-binding-group-refType defined in the schema does not have a @default-interface override.
