Re: [gentoo-dev] rfc: generic "container" keyword for init scripts

[Zac Medico]

On 12/01/2015 10:19 AM, William Hubbs wrote:
> On Tue, Dec 01, 2015 at 11:26:19AM -0600, William Hubbs wrote:
>> On Tue, Dec 01, 2015 at 09:00:55AM -0800, Zac Medico wrote:
>>> On 12/01/2015 08:50 AM, William Hubbs wrote:
>>>> The "container" keyword, being generic, would have its meaning expanded
>>>> to cover new container systems as they come along. This means if a
>>>> service script has the keyword "-container" it will not work under any
>>>> current or future container systems. On the other hand, adding
>>>> "container" means it will work under all of them.
>>>
>>> If it's similar to how license groups work, then there is room for doing
>>> things like "-@container docker" which means no containers except
>>> docker, or "@container -docker" which means all containers except
>>> docker. Keyword groups can be implemented using a simple expansion
>>> mechanism, just like license groups.
>>
>> Keyword groups are an interesting idea; I'll think about this approach.
>
> One question that comes to mind is,, who defines which keywords go in
> each group?
>
> The containers or virtualization systems themselves can be autodetected
> so they are the same everywhere, but keyword groups are not able to be
> detected.

The groups should go in a configuration file somewhere. For example,
they could be defined in rc.conf with a variable setting like this:

rc_keyword_group_container="docker lxc openvz vserver"
-- 
Thanks,
Zac