[systemd-devel] Query regarding "EnvironmentFile"

[Reindl Harald]

Am 11.12.2015 um 15:45 schrieb Jóhann B. Guðmundsson:
> On 12/11/2015 03:56 AM, Andrei Borzenkov wrote:
>> 10.12.2015 18:44, Jóhann B. Guðmundsson пишет:
>>>
>>> On 12/10/2015 03:20 PM, Reindl Harald wrote:
>>>> Am 10.12.2015 um 15:46 schrieb Jóhann B. Guðmundsson:
>>>>
>>>> Care to show example how it should be done from your point of view?
>>>> So that they can actully be compared?
>
> You just create an configuration snipped that replaces the ExecStart
> line for the daemon in the unit file with startup options for the daemon
> which contains the options you want to change or copy/edit the full unit
> and replace it.
>
> In his sample case above where he's using ExecStart=/usr/sbin/httpd
> $OPTIONS -D FOREGROUND and the environment file /etc/sysconfig/httpd
> you would create an configuration snippet which contains
> "ExecStart=/usr/sbin/httpd -D testserver -D FOREGROUND" instead

and that's exactly what i don't want to do for damned good reasons

* in the past i started httpd with type=forking
* it was just "/usr/sbin/httpd $OPTIONS"
* switch to "Type=simple" was change the untit in our own
   maintained rpm-package and add "-D FOREGROUND" too

"distribute-updates.sh" and all machines in the cluster where changed, 
you can't act that way when you have on each and every machine a snippet 
to change

EnvironmentFile is a great way to make units flexible with sane defaults 
and i am *not* talking about upstream or distributions here

so taking away that option gains you nothing but breaks things for no 
valid reason - it would only confirm people which hesitate to adopt 
systemd because the fear that they can't rely on capabilities it brings 
now because they may flippantly disappear


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