MongoDB (v4.4) log rotation

mongo-logrotate

# nano /etc/logrotate.d/mongodb
/var/log/mongodb/mongod.log {
    rotate 7
    daily
    size 100M
    missingok
    create 0600 mongodb mongodb
    delaycompress
    compress
    sharedscripts
    postrotate
            /bin/kill -SIGUSR1 $(cat /var/run/mongodb/mongod.pid)
    endscript
}

mongod.conf

# nano /etc/mongod.conf
systemLog:
  destination: file
  logAppend: true
  path: /var/log/mongodb/mongod.log
  logRotate: reopen
processManagement:
  pidFilePath: /var/run/mongodb/mongod.pid

mongod.service

# nano /lib/systemd/system/mongod.service
[Service]
RuntimeDirectory=mongodb

setup.sh

sudo systemctl daemon-reload
sudo systemctl restart mongod
sudo systemctl status mongod

ls -lah /var/log/mongodb/
logrotate -f /etc/logrotate.d/mongodb
ls -lah /var/log/mongodb/