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From: David Jencks <david_jencks@yahoo.com>
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Subject: Re: PortOffset for o.a.karaf.shell.ssh
Date: Tue, 30 Aug 2011 09:28:50 -0700
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Hi Rex,

I don't have a good idea how to do something like this in karaf.  It =
would have to work through config admin since any service opening a =
socket should get the port from config admin (the shell does).  So I =
think we would need some kind of config admin administration tool that =
would shift all the port values by some constant.  I haven't looked into =
anything about how to implement something like this. =20

thanks
david jencks

On Aug 30, 2011, at 2:29 AM, Rex Wang wrote:

> Hi Devs
>=20
> I send this mail to only Geronimo mailing list because I hope we could =
discuss it first before we request this ability in karaf.
>=20
> Currently, in Geronimo 3.0, all the port/portoffset settings have been =
unified in config-substitutions.properties like before, except the =
settings for o.a.karaf.shell.ssh.
> karaf.shell.ssh can help user access our shell from remote through the =
port 8101. In Geronimo startup script, by setting =
CONSOLE_OPTS=3D-Dkaraf.startLocalConsole=3Dtrue =
-Dkaraf.startRemoteShell=3Dtrue, we can enable this feature. It =
retrieves the settings in /etc/org.apache.karaf.shell.cfg from config =
admin service.=20
> However, it did not define the port offset value. If user wanna start =
2 server instances in one machine, he has to manually set the portoffset =
in config-substitutions and also modify the "sshPort" in the =
/etc/org.apache.karaf.shell.cfg. Otherwise, the port 8101 will only work =
for the server instance that start later.
>=20
> The question is, if we want karaf add the ability to set the port =
offset, how do we hope them implement it? They indeed can simply add a =
setting in org.apache.karaf.shell.cfg named "sshPortoffset" to do this. =
But our user still need change 2 places if they want to change the =
portoffset. Shall we persuade them to add the ability to load the =
settings from a location(i.e. var/config-substitutions.properties for =
us) or there are better practices?
>=20
> David, IIRC, you ever mentioned you hope get rid of the =
config-substitutions in future geronimo. Then how to unify the =
portoffset settings, that is, changing in one place will make all =
components take the effect?
>=20
> Any insights?
>=20
> thanks,
> --=20
> Lei Wang (Rex)
> rwonly AT apache.org


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<html><head></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hi =
Rex,<div><br></div><div>I don't have a good idea how to do something =
like this in karaf. &nbsp;It would have to work through config admin =
since any service opening a socket should get the port from config admin =
(the shell does). &nbsp;So I think we would need some kind of config =
admin administration tool that would shift all the port values by some =
constant. &nbsp;I haven't looked into anything about how to implement =
something like this. =
&nbsp;</div><div><br></div><div>thanks</div><div>david =
jencks</div><div><br><div><div>On Aug 30, 2011, at 2:29 AM, Rex Wang =
wrote:</div><br class=3D"Apple-interchange-newline"><blockquote =
type=3D"cite">Hi Devs<br><br>I send this mail to only Geronimo mailing =
list because I hope we could discuss it first before we request this =
ability in karaf.<br><br>Currently, in Geronimo 3.0, all the =
port/portoffset settings have been unified in =
config-substitutions.properties like before, except the settings for =
o.a.karaf.shell.ssh.<br>

karaf.shell.ssh can help <span style=3D"line-height: normal; color: =
rgb(0, 0, 0); font-size: 10.5pt;"></span>user access our shell from =
remote through the port 8101. In Geronimo startup script, by setting =
CONSOLE_OPTS=3D-Dkaraf.startLocalConsole=3Dtrue =
<b>-Dkaraf.startRemoteShell=3Dtrue</b>, we can enable this feature. It =
retrieves the settings in /etc/org.apache.karaf.shell.cfg from config =
admin service. <br>

However, it did not define the port offset value. If user wanna start 2 =
server instances in one machine, he has to manually set the portoffset =
in config-substitutions and also modify the "sshPort" in the =
/etc/org.apache.karaf.shell.cfg. Otherwise, the port 8101 will only work =
for the server instance that start later.<br>

<br>The question is, if we want karaf add the ability to set the port =
offset, how do we hope them implement it? They indeed can simply add a =
setting in org.apache.karaf.shell.cfg named "sshPortoffset" to do this. =
But our user still need change 2 places if they want to change the =
portoffset. Shall we persuade them to add the ability to load the =
settings from a location(i.e. var/config-substitutions.properties for =
us) or there are better practices?<br>

<br>David, IIRC, you ever mentioned you hope get rid of the =
config-substitutions in future geronimo. Then how to unify the =
portoffset settings, that is, changing in one place will make all =
components take the effect?<br>
<br>
Any insights?<br><br>thanks,<br>-- <br>Lei Wang (Rex)<br>rwonly AT <a =
href=3D"http://apache.org/">apache.org</a><br>
</blockquote></div><br></div></body></html>=

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