create_logrotate_files.sh

#!/bin/bash

# Logrotate Configuration
echo "Setting up Logrotate configuration for your application..."
cat <<EOF > /etc/logrotate.d/logrotate_size_check
/var/log/syslog {
    size 100M
    rotate 30
    compress
    missingok
    notifempty
    delaycompress
    postrotate
		/usr/lib/rsyslog/rsyslog-rotate
    endscript
}
EOF

cat <<EOF > /etc/logrotate.d/rsyslog
/var/log/syslog
{
	rotate 7
	daily
	missingok
	notifempty
	delaycompress
	compress
	postrotate
		/usr/lib/rsyslog/rsyslog-rotate
	endscript
}

/var/log/mail.info
/var/log/mail.warn
/var/log/mail.err
/var/log/mail.log
/var/log/daemon.log
/var/log/kern.log
/var/log/auth.log
/var/log/user.log
/var/log/lpr.log
/var/log/cron.log
/var/log/debug
/var/log/messages
{
	rotate 4
	weekly
	missingok
	notifempty
	compress
	delaycompress
	sharedscripts
	postrotate
		/usr/lib/rsyslog/rsyslog-rotate
	endscript
}
EOF

echo "Creating Systemd service file for Logrotate..."
cat <<EOF > /etc/systemd/system/logrotate_size_check.service
[Unit]
Description=Rotate log files if size exceeded

[Service]
ExecStart=/usr/sbin/logrotate /etc/logrotate.conf
EOF

# Systemd Timer File
echo "Creating Systemd timer file for Logrotate..."
cat <<EOF > /etc/systemd/system/logrotate_size_check.timer
[Unit]
Description=Run logrotate every 10 minutes

[Timer]
OnCalendar=*:0/10
Persistent=true

[Install]
WantedBy=timers.target
EOF

# Reloading systemd daemon and enabling the timer
echo "Reloading systemd daemon and enabling the timer..."
sudo systemctl daemon-reload
sudo systemctl enable logrotate.timer
sudo systemctl start logrotate.timer

# Check status of the timer
echo "Checking the status of the timer..."
sudo systemctl list-timers --all

echo "Logrotate configuration with systemd timer is set up."