Service to monitor Service not triggering

Al Grant

8/20/24, 1:43 AM

On Ubuntu 18 I have a service :

[Unit]
Description=Gets CSV
OnFailure=pushovercsv.service

[Service]
ExecStart=/usr/bin/vehicles.sh

[Install]
WantedBy=multi-user.target

This works. I am trying unsuccessfully to setup another service which alerts me if the first service is stopped or in failed sate:

pushovercsv.service

[Unit]
Description=PushOver Notifaction for vehicles CSV Service

[Service]
Type=simple
ExecStart=curl -s --form-string "token=<secret>" --form-string "user=<secret>" --form-string "message=CSV service"   https://<pushover api endpoint>

[Install]
WantedBy=multi-user.target

Both services work on there own.

But it doesn't appear as if OnFailure=pushovercsv.service is calling the pushover service. If I stop the first service with systemctl stop service1 I get no alert from pushovercsv.service.

Does pushovercsv.service need to be manually started or is it started when called?

1 + 0

linux

ubuntu

bash

service

systemd

Score:1

Server

iBug

8/20/24, 3:33 AM

As its name suggests, OnFailure= is only triggered when the unit fails (exits with a non-zero exit code, killed by a signal, or similar). If you want to run a command whenever the service stops, you don't even need a separate service, just ExecStopPost= is enough.

+ 2

Al Grant

8/20/24, 6:45 AM

So if I include OnFailure and ExecStopPost it will trigger on Failure or Stop?

iBug

8/20/24, 8:39 AM

@AlGrant They'll act separately. If the service fails, both `OnFailure` unit and `ExecStopPost` command will be started/executed.

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Service to monitor Service not triggering

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