[systemd-devel] EnvironmentFile, (-)sign
lennart at poettering.net
Thu Feb 28 10:00:42 PST 2013
On Thu, 28.02.13 17:05, lux-integ (lux-integ at btconnect.com) wrote:
> I am new to systemd. I notice in the service files the 'EnvironmentFile'
> path variable is prepended by a minus (-) sign like so:-
> Could somene advise if this is necessary/advisable/advantageous ...
> or not
See the discussion of EnvironmentFile= in systemd.exec(5).
If the file might not exist use "-", otherwise don't use it.
Sometimes you want to make things robust to configuration fuckups, and
sometimes you want things to fail on configuration
fuckups. EnvironmentFile= gives you the choice which way you want to go,
dependening on your needs, just by using "-" or not.
It's a philosophical question, and some people and some usecases prefer
one, and others, the other.
Lennart Poettering - Red Hat, Inc.
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