Web lists-archives.com

Re: certbot options

On Wed, Nov 28, 2018 at 04:52:30PM +0300, Reco wrote:
> cp /lib/systemd/system/certbot.service /etc/systemd/system/certbot.service
> $EDITOR /etc/systemd/system/certbot.service
> systemctl daemon-reload

Or, for a targeted change like this one, use the drop-in directory.


Since you're altering ExecStart here, there is a *special* "feature"
of systemd that you must be aware of, which is not clearly documented.
You're allowed to have multiple ExecStart= lines for a service, so
if you simply put more ExecStart=... lines in a drop-in directory
config file, they are appended to a list, and you end up trying to run
ALL of them.

If you want to replace the service's list of ExecStart lines with
your own list, as we do here, then the service's list has to be
cleared first.


ExecStart=/your/own --command --goes here

<https://askubuntu.com/a/659268> explains this in more detail.