Create hourly log rotation

[j-carpentier]

I'm looking for creating hourly log rotation for fast growing logs, in my case haproxy
Here is my current configuration : /etc/logrotate.d/haproxy

/var/log/haproxy.log
{
    su syslog syslog
    rotate 24
    size 500M
    maxsize 500M
    hourly
    missingok
    notifempty
    compress
    delaycompress
    postrotate
        invoke-rc.d rsyslog rotate >/dev/null 2>&1 || true
    endscript
}

I'm able to create an hourly job for haproxy using :

options:
- hourly

But unfortunately, there is no hourly crontab by default on Ubuntu 16.04 (xenial)
but only a daily one : /etc/cron.daily/logrotate