logrotate

config log

Log rotation configuration

/etc/logrotate.d/{app_name}

Required Packages

sudo apt install -y logrotate

Rotation Settings

Application name

Used as config filename

Log file path pattern

Glob pattern for target log files

Rotation frequency

Keep N rotated files (rotate)

Compress rotated files Compress rotated files

Delay compression by one rotation Delay compression by one rotation

Useful when process still writes to recently rotated file

Don't error if log file is missing Don't error if log file is missing

Don't rotate empty files Don't rotate empty files

New file permissions (create)

New file owner

New file group

Size-based rotation (size)

Rotate when file reaches this size (e.g. 100M). Overrides frequency if set.

Copy and truncate (copytruncate) Copy and truncate (copytruncate)

Copy log then truncate original (for apps that can't reopen files)

Shared scripts (sharedscripts) Shared scripts (sharedscripts)

Run postrotate once for all matched files

Post-rotate command

Command to run after rotation (e.g. reload service)

/var/log/myapp/*.log { daily rotate 14 compress delaycompress missingok notifempty create 0640 root adm }