Cron

Cron jobs are used for the time-controlled execution of shell commands or scripts. You can read more about them in the debian manpage. For better traceability and accountability all output are logged to syslog. To achieve this, we use a small shell wrapper that is defined with the following line in the cron job file.

Cronjob Shell Wrapper

SHELL=/usr/local/vzscripts/sfoutputtosyslog

Hint

Due to our configuration the MAILTO and other variables cannot be used to recieve notifications by email. If you would like to receive an email for each run, you can set it up like this:

Mail cronjob

*/15  *       *       *       *       <some-command-with-output> |& tee >(mail -s "Cron <${USER}@$(hostname)>" <user@domain.tld>)

Hint

You can search for cronjob logs of a specific website as follows:

Check Cronjob Logs

grep 'CRON.*<website name>' /var/log/syslog

Custom Cronjobs

To configure your own jobs, use teh crontab -e command. We provide a template including all required configuration which will be loaded by default.

Type Related Cronjobs

Application specific cronjobs are predefined when you use the according type (see your type in Application Types).

To disable the type related cronjob, set type_cronjob to false within the Custom JSON Website Level Configuration:

{
  "type_cronjob": false
}

The default interval for type related cronjobs is set to 15 minutes. To adjust this value you can set type_cronjob_interval to a different value within the Custom JSON Website Level Configuration:

{
  "type_cronjob_interval": 5
}

Or global within the Custom JSON Server Level Configuration:

{
  "website::type_cronjob_interval": 5
}