[systemd-devel] Extending machine-info to include machine roles

["Jóhann B. Guðmundsson"]

On 07/09/2014 10:58 AM, Tollef Fog Heen wrote:
> ]] "Jóhann B. Guðmundsson"
>
>> On 07/09/2014 08:33 AM, Tollef Fog Heen wrote:
>>> ]] "Jóhann B. Guðmundsson"
>>>
>>>> If we manage to do that, introduce "rolefulfilment=" in units which we
>>>> would define those standardized predefined set of roles as in for
>>>> httpd.service we might have rolefulfilment=web server, for postgresql,
>>>> rolefulfilment=database server etc.  so you could list/query etc the
>>>> machine primary role and at the same time list the daemon/service who
>>>> fulfills that role
>>> It's not useful to know that a machine is a database server.  It's
>>> useful to know if it's a postgres server or a mysql server or an oracle
>>> server, be it for monitoring or for connecting to it.
>> Yes it is and if you dont see the benefits of knowing the roles of
>> your machine or containers and using roles in your infrastructure I
>> cannot help you.
> I know and use roles in my infrastructure, so that's not my question.
> I'm objecting to the use of a predefined list of roles, since that will
> not match my infrastructure,

Precisely it does not meet *your* particular needs.

>   and I'm wondering what the use case for a
> very restricted list like that is.
>

An list of strictly defined roles is needed for proper integration with 
wide variety of components and system policies ( think for example RBAC 
here ) etc.


JBG