Logging

Prevent disc space flooding with container logs:

• Strategies for Rotating Docker Logs
• How To Manage Docker Logfiles with Logrotate
• Rotating nginx logs using Docker Compose and logrotate

/etc/logrotate.d/docker-container

/var/lib/docker/containers/*/*.log {
    rotate 4
    weekly
    compress
    size=100M
    missingok
    delaycompress
    copytruncate
}

/etc/logrotate.d/docker-nginx

/srv/nginx/logs/*.log {
  weekly
  missingok
  rotate 4
  dateext
  compress
  delaycompress
  notifempty
  sharedscripts
  postrotate
    cd /root/dockers/nginx \
      && /usr/local/bin/docker-compose kill -s USR1 nginx
  endscript
}