Skip to content

Automatically rotate all applications logs managed by PM2

Notifications You must be signed in to change notification settings

keymetrics/pm2-logrotate

Folders and files

NameName
Last commit message
Last commit date

Latest commit

 

History

94 Commits
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Repository files navigation

Description

PM2 module to automatically rotate logs of processes managed by PM2.

Install

pm2 install pm2-logrotate

NOTE: the command is pm2 install NOT npm install

Configure

  • max_size (Defaults to 10M): When a file size becomes higher than this value it will rotate it (its possible that the worker check the file after it actually pass the limit) . You can specify the unit at then end: 10G, 10M, 10K
  • retain (Defaults to 30 file logs): This number is the number of rotated logs that are keep at any one time, it means that if you have retain = 7 you will have at most 7 rotated logs and your current one.
  • compress (Defaults to false): Enable compression via gzip for all rotated logs
  • dateFormat (Defaults to YYYY-MM-DD_HH-mm-ss) : Format of the data used the name the file of log
  • rotateModule (Defaults to true) : Rotate the log of pm2's module like other apps
  • workerInterval (Defaults to 30 in secs) : You can control at which interval the worker is checking the log's size (minimum is 1)
  • rotateInterval (Defaults to 0 0 * * * everyday at midnight): This cron is used to a force rotate when executed. We are using node-schedule to schedule cron, so all valid cron for node-schedule is valid cron for this option. Cron style :
  • TZ (Defaults to system time): This is the standard tz database timezone used to offset the log file saved. For instance, a value of Etc/GMT+1, with an hourly log, will save a file at hour 14 GMT with hour 13 (GMT+1) in the log name.
*    *    *    *    *    *
┬    ┬    ┬    ┬    ┬    ┬
│    │    │    │    │    |
│    │    │    │    │    └ day of week (0 - 7) (0 or 7 is Sun)
│    │    │    │    └───── month (1 - 12)
│    │    │    └────────── day of month (1 - 31)
│    │    └─────────────── hour (0 - 23)
│    └──────────────────── minute (0 - 59)
└───────────────────────── second (0 - 59, OPTIONAL)

How to view current configuration of the above values ?

After having installed the module, you have to type : pm2 conf

How to set these values ?

After having installed the module you have to type : pm2 set pm2-logrotate:<param> <value>

e.g:

  • pm2 set pm2-logrotate:max_size 1K (1KB)
  • pm2 set pm2-logrotate:compress true (compress logs when rotated)
  • pm2 set pm2-logrotate:rotateInterval '*/1 * * * *' (force rotate every minute)