How make a website monitorable?

How to make a website build in PHP monitorable using monitoring agents like Zabbix?

I have built a website using a Website and now the client tells me that he wants it to be monitorable. He even told me about the software he is going to use to minitor it, I just dont know how to make it possible. I would'nt like to focus on the solution he is going to use, I wanted to keep the solution abstract. Have been reserarching and found something about CIM (Common Information Model), but nothing clear yet. Any ideas?

Solution

You can potentially do many things with zabbix, currently one of my client uses Zabbix to monitor over 500 virtual machines.

Step 1: Install zabbix server

Step 2: Install zabbix client on your php machine zabbix server/client installation link

Step 3: Configure host in zabbix sever (you can use zabbix-UI)

That's it, you can see that Zabbix will start monitor your server(s)

Now, What zabbix can monitor:

CPU utilization
Memory usage
Network In/Out
Disk usage and many other

You can easily get the Templates for PHP to start basic monitoring

Other than that they have

Graphs: You can use built-in or custom or own
Screen: You can segregate all your relative server to see at one place
Triggers: You can create a alarms on uncertain usage (e.g. you disk is 90% full or CPU utilization reached 70%, you can configure alerts based on criticality like disaster, high, medium, information..etc)
It can even add host automatically by Auto-discovery