950d8fcdd9
Note this commit only changes how the code is expressed; it does not change
the existence of any dependency.
The `Conflicts=` was added in 3136ec90, "Stop syslog.socket when entering
emergency mode". The discussion in the issue #266 raised concerns that
this might be needed for other units, but failed to point out why
syslog.socket is special. The reason is that syslog.socket has
DefaultDepedencies=no, so it does not get Requires=sysinit.target like
other socket units do. But syslog.service does require sysinit.target,
among other things.
We don't have many socket, path, or timer units with
DefaultDependencies=no, and I don't think any of the triggered services
have such additional hard dependencies as syslog.service does.
It is much less confusing if we keep this `Conflicts=` in the same file as
the `DefaultDependencies=no` which made it necessary.
45 lines
1.3 KiB
SYSTEMD
45 lines
1.3 KiB
SYSTEMD
# This file is part of systemd.
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#
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# systemd is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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[Unit]
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Description=Syslog Socket
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Documentation=man:systemd.special(7)
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Documentation=https://www.freedesktop.org/wiki/Software/systemd/syslog
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DefaultDependencies=no
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Before=sockets.target
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# Don't allow logging until the very end
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Conflicts=shutdown.target
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Before=shutdown.target
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# Don't try to activate syslog.service if sysinit.target has failed.
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Conflicts=emergency.service
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[Socket]
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ListenDatagram=/run/systemd/journal/syslog
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SocketMode=0666
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PassCredentials=yes
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PassSecurity=yes
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ReceiveBuffer=8M
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# The default syslog implementation should make syslog.service a
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# symlink to itself, so that this socket activates the right actual
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# syslog service.
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#
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# Examples:
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#
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# /etc/systemd/system/syslog.service -> /lib/systemd/system/rsyslog.service
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# /etc/systemd/system/syslog.service -> /lib/systemd/system/syslog-ng.service
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#
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# Best way to achieve that is by adding this to your unit file
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# (i.e. to rsyslog.service or syslog-ng.service):
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#
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# [Install]
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# Alias=syslog.service
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#
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# See https://www.freedesktop.org/wiki/Software/systemd/syslog for details.
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