Overview

The log rotation setting of CentOS7 is required "occasionally", but (that's why) I forget it every time and go to the set server, so I will write it here. For those who want to know only the main points quickly!

Setup steps

Create configuration file

<filename> is optional.

vim /etc/logrotate.d/<filename>

Setting input

Describe the following in /etc/logrotate.d/<filename> created above

<target file> --Full path of files to be rotated

`/etc/logrotate.d/filename`


<target file> {
    weekly
    rotate 7
    missingok
    notifempty
    copytruncate
    compress
    dateext
    dateformat _%Y%m%d
    minsize 1M
}

The setting itself is complete.

bonus

I will add a description of the above settings ...

weekly --Weekly Rotate
rotate 7 --Hold for 7 generations
missingok --No error even if the file to be rotated does not exist
notifempty --Do not rotate if the file to be rotated is empty
copytruncate --After creating the rotate file, empty the contents of the file to be rotated. --If you do not specify this, the original file will grow larger and larger.
compress --Compress the rotate file with gzip
dateext --Add a date suffix to the rotate file (better to use with dateformat) --Example: xxx_20200101.gz
dateformat --Define the format of date yourself --In the above example, xxx_20200101.gz
minsize --Rotate only if the size is larger than the specified size --In the above example, rotate only when it is 1M or more.

CentOS7 log rotation configuration template