Ask HN: Monitoring tools for LAMP server?

I'm a Fullstack dev at an SMB, we have currently one rackspace server to service our sites (a lot of it is static content).

I'm currently the only one who can manage with a terminal, so the server management stuff falls on me at the moment. Rackspace has plenty of health monitoring tools, but I would like something that allows me to go through PHP/MySQL/Apache logs. Preferably something a la jenkins, where after some config work it's as simple as logging in and users can peruse logs. For the moment it's one server, but I do need support for multiple Virtual Hosts.