[systemd-devel] Query regarding "EnvironmentFile"

[Jóhann B. Guðmundsson]

On 12/21/2015 01:30 PM, Reindl Harald wrote:
> ExecStart=/path/to/daemon FOO would cut you from distro-changes in 
> other params and explained abvoe sooner or later lead in failing and 
> could even be security relevant depending on new options or removed 
> options in the distro-unit 

You do realize you have the exact same chances with an environment entry 
line do you not?

The options being used there could be deprecated in the daemon startup 
and for those daemon/services that are capable of reading their own 
configuration files  ( and thus those environment lines are not 
applicable to )  are never changed on updates..

When an administrators makes a change to an configuration ( or in this 
case type unit ) he is stating that he's deviating from the 
distributions shipped defaults for that components and since there is no 
reliable way for a system to detect and determine manual changes in 
configuration, there is always the risk that an update will break 
running system ( the administrators made changes ) which is why the 
configuration files for a running daemon/service are saved as copy's and 
the administrator who has made the deviation is expected to review and 
apply those changes himself.

JBG