+1 on an opened-ports hook tool, I've added it to the task list

On Fri, Jun 27, 2014 at 9:41 AM, William Reade <william.re...@canonical.com>
wrote:

> Agreed. Note, though, that we'll want to give charms a way to know what
> ports they have already opened: I think this is a case where
> look-before-you-leap maybe beats easier-ask-forgiveness-than-permission
> (and the consequent requirement that error messages be parsed...). An
> opened-ports hook tool should do the trick.
>
>
> On Thu, Jun 26, 2014 at 9:18 PM, Gustavo Niemeyer <gust...@niemeyer.net>
> wrote:
>
>> +1 to Mark's point. Handling exact matches is much easier, and does
>> not prevent a fancier feature later, if there's ever the need.
>>
>> On Thu, Jun 26, 2014 at 3:38 PM, Mark Ramm-Christensen (Canonical.com)
>> <mark.ramm-christen...@canonical.com> wrote:
>> > My belief is that as long as the error messages are clear, and it is
>> easy to
>> > close 8000-9000 and then open 8000-8499 and 8600-9000, we are fine.
>>  Of
>> > course it is "nicer" if we can do that automatically for you, but I
>> don't
>> > see why we can't add that later, and I think there is a value in
>> keeping a
>> > port-range as an atomic data-object either way.
>> >
>> > --Mark Ramm
>> >
>> >
>> > On Thu, Jun 26, 2014 at 2:11 PM, Domas Monkus <
>> domas.mon...@canonical.com>
>> > wrote:
>> >>
>> >> Hi,
>> >> me and Matthew Williams are working on support for port ranges in juju.
>> >> There is one question that the networking model document does not
>> answer
>> >> explicitly and the simplicity (or complexity) of the implementation
>> depends
>> >> greatly on that.
>> >>
>> >> Should we only allow units to close exactly the same port ranges that
>> they
>> >> have opened? That is, if a unit opens the port range [8000-9000], can
>> it
>> >> later close ports [8500-8600], effectively splitting the previously
>> opened
>> >> port range in half?
>> >>
>> >> Domas
>> >>
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>>
>>
>> --
>>
>> gustavo @ http://niemeyer.net
>>
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