Difference between revisions of "Systemd"

Latest revision as of 04:59, 1 February 2024

they are in /etc/systemd/system/multi-user.target.wants

Start/stop/status

 sudo systemctl start iro_get_chains.service
 sudo systemctl status iro_get_chains.service

Trash

 service --status-all # does not work!

Read logs

 journalctl -u stockwatcher.service
 journalctl -u nginx.service
 journalctl -u iro_alert_stocks -n 100 -f

Limit how much logs journalctl keeps:

 journalctl --vacuum-time=2d
 journalctl --vacuum-size=500M

Example service definition

This is not up to date - look in the access repo pi/readme

[Unit]
Description=watch stocks

[Service]
Type=forking
WorkingDirectory=/home/ubuntu/projects/microsites3a/current
ExecStart=/home/ubuntu/.rbenv/shims/bundle exec rake ish_manager:stockwatcher
ExecStop=/bin/echo nothing
Restart=on-failure
Environment=RAILS_ENV=production
Environment=GMAIL_DOMAIN=gmail.com
Environment=GMAIL_USERNAME=<numeric-email>
Environment=GMAIL_PASSWORD=<password>

[Install]
WantedBy=multi-user.target