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use of $ARGS in systemd unit file by prometheus package
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Andrew Spiers
Mar 1, 2021, 9:20:05 PM3/1/21
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Prometheus takes some command line arguments to control certain
aspects of its operation.
The systemd unit file shipped with prometheus includes the line
ExecStart=/usr/bin/prometheus $ARGS
I know I can simply override the unit file with one in
/etc/systemd/system, but what if I wanted to use this variable? Where
would I set it?
aspects of its operation.
The systemd unit file shipped with prometheus includes the line
ExecStart=/usr/bin/prometheus $ARGS
I know I can simply override the unit file with one in
/etc/systemd/system, but what if I wanted to use this variable? Where
would I set it?
IL Ka
Mar 1, 2021, 9:50:04 PM3/1/21
to
Hi.
ExecStart=/usr/bin/prometheus $ARGS
I know I can simply override the unit file with one in
/etc/systemd/system, but what if I wanted to use this variable? Where
would I set it?
See "EnvironmentFile" directive above.
Check manual pages for more info:
and
Andrew Spiers
Mar 2, 2021, 2:00:05 AM3/2/21
to
I think EnvironmentFile is just used for setting the environment file
of the running process.
Setting ARGS in /etc/default/prometheus seems to add the value to the
command line arguments, as well as to an environment variable called
ARGS for the prometheus process.
I can't find any mention of this in the systemd or prometheus docs,
but it works.
Greg Wooledge
Mar 2, 2021, 10:20:04 AM3/2/21
to
Andrew Spiers (and...@andrewspiers.net) wrote:
> I think EnvironmentFile is just used for setting the environment file
> of the running process.
> Setting ARGS in /etc/default/prometheus seems to add the value to the
> command line arguments, as well as to an environment variable called
> ARGS for the prometheus process.
> I can't find any mention of this in the systemd or prometheus docs,
> but it works.
Show us the systemd unit file, or a URL that points to it exactly as it
> I think EnvironmentFile is just used for setting the environment file
> of the running process.
> Setting ARGS in /etc/default/prometheus seems to add the value to the
> command line arguments, as well as to an environment variable called
> ARGS for the prometheus process.
> I can't find any mention of this in the systemd or prometheus docs,
> but it works.
appears on your system. (Hint: if it's a Debian package, and if you're
using the unmodified Debian systemd unit file, you might be able to
find it on sources.debian.org. If this is the case, tell us what version
of the Debian package you're using. For example, buster's is at
<https://sources.debian.org/src/prometheus/2.7.1+ds-3/debian/service/>.)
It might also help if you try "systemctl status prometheus" (or whatever
the unit's name is) and show us what it says. Just in case the systemd
unit is merely a thin wrapper around a sysv-rc script, as is sometimes
the case.
It's worth noting that the Debian /etc/default/prometheus file from
buster's package
(<https://sources.debian.org/src/prometheus/2.7.1+ds-3/debian/default/>)
explicitly sets a variable named ARGS.
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