[systemd-devel] Create a target unit to start & stop a group of services

[林自均]

Hi Zbyszek,

Thank you for your explanation.

However, I found that Conflicts= will be a good choice for me:

    # /etc/systemd/system/my-apps-start.target
    [Unit]
    Wants=docker.service sshd.service mongodb.service

    # /etc/systemd/system/my-apps-stop.target
    [Unit]
    Conflicts=docker.service sshd.service mongodb.service
    After=docker.service sshd.service mongodb.service

Then

    systemctl start my-apps-start.target # starts all my apps
    systemctl start my-apps-stop.target # stops all my apps

And both operations are sync, i.e. will wait for all apps to be
started/stopped before systemctl exits.

Thank you all for solving my problems.

John Lin

Zbigniew Jędrzejewski-Szmek <zbyszek at in.waw.pl> 於 2018年3月7日 週三 下午8:48寫道：

> On Tue, Mar 06, 2018 at 03:07:30AM +0000, 林自均 wrote:
> > Anyone?
> >
> > John Lin
> >
> > 林自均 <johnlinp at gmail.com> 於 2018年2月27日 週二 下午6:20寫道：
> >
> > > Hi Jérémy,
> > >
> > > Thank you, but I read the section "Mapping of unit properties to their
> > > inverses" in the man page
> > > https://www.freedesktop.org/software/systemd/man/systemd.unit.html and
> > > then found out the PropagatesReloadTo= and ReloadPropagatedFrom= are
> > > inverses to each other and both can be configured in a unit file. I was
> > > wondering why PartOf= and ConsistsOf= are not the case. Thank you.
>
> No particular reason, just noobody got around to implementing the
> parsing of that option. Shouldn't be too hard though.
>
> Zbyszek
>
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