Hi Michael,
On Wed, Jan 17, 2018 at 04:19:58PM +0100, Michael Biebl wrote:
[..snip..]
> I quickly checked "service" from a Fedora installation. It doesn't seem
> to use --no-pager (see the attached files).
>
> Does service really behave differently on other distros?
At least the last CentOS and SLES releases I used didn't show that behaviour.
> >> Second, for your use case, directly using
> >> systemctl is-active $service
> >> seems like a better idea anyway then to use a full-blown systemctl
> >> status output as it would be much quicker.
> >
> > serverspec uses exactly this when it you tell it the init system is
> > systemd
> >
> > describe service('openssh-server') do
> > it { should be_running.under('systemd') }
> > end
> >
> > and this works out of the box. But there are situtation when one doesn't
> > care about the init system and using service is good enough. (The fact
> > that Debian ships several init systems doesn't make things simpler).
>
> But you know which system does use systemd, so you could setup the
> servespec config accordingly to use "is-active"?
I do, but serverspec doesn't care. Isn't service there to provide this
kind of abstraction?
> >> Third, afaik, systemctl has some auto-detection whether it is called
> >> from an interactive shell or not and is not supposed to use paging in
> >> that case. Might be worth investigating if that is not working or if I'm
> >> just misinformed there.
> >
> > serverspec is trying to mimic an interactive session here which seems to
> > confuse systemctl.
>
> Urgh...
>
> >> Fourght, you already have a knob where you can disable the pager. See
> >> the systemctl man page → ENVIRONMENT. Setting $SYSTEMD_PAGER to an empty
> >> var should disable the pager.
> >>
> >> Given all those reasons, I don't think we should change the behaviour of
> >> "service $foo status"
> >
> > My main point would be better matching the behavior of other distros.
>
> See above. I'm not sure if other distros actually behave differently.
> Would like to know more if you have any references.
E.g. the service command in centos6
https://centos.pkgs.org/6/centos-updates-x86_64/initscripts-9.03.58-1.el6.centos.1.x86_64.rpm.html
Cheers,
-- Guido
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