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linuxsystemd

How to restart Systemd service only once on-failure?

I have a service that should restart only once when something go wrong. Here is my service:

[Unit]
Description=Do job on boot
AllowIsolate=yes
StartLimitBurst=1    # or 2
StartLimitIntervalSec=3

[Service]
User=root
Type=idle

ExecStart=/usr/bin/python3 /var/www/flask/initJobs.py
Restart=on-failure
RestartSec=3

[Install]
WantedBy=multi-user.target

But this on failure keep restarting.

systemd version 241.

Tried to add StartLimitAction=none but did not change nothing.

Solution

  • Ok i found, so to restart service only once on failure after 3 second.

    [Unit]
Description=Do job on boot
StartLimitBurst=2
StartLimitInterval=11          # StartLimitInterval >  RestartSec * StartLimitBurst
#OR
#StartLimitIntervalSec=11  

[Service]
User=root
Type=idle

ExecStart=/usr/bin/python3 /var/www/flask/initJobs.py
Restart=on-failure
RestartSec=3

[Install]
WantedBy=multi-user.target

    the key here is StartLimitIntervalSec have to be > to RestartSec * StartLimitBurst and StartLimitBurst count the first start.