OpcacheMonitor

A simple dashboard for monitoring a number of PHP instances or FPM pools that use OPcache. If you only need to keep an eye on one instance, you can also have a look at some of the other projects (my favorite being PeeHaa's OpCacheGUI). This one trades off more specific and advanced functions like single-file invalidation for an overview of the most important metrics of your PHP pools.

Requirements

• PHP >= 5.4.0 (Server side)

Installation - Server side

For every PHP pool or OPcache instance you want to monitor, clone the repository into a directory visible by that instance's PHP interpreter. You only need the api/ subdirectory on Server side.

$ cd mydomain.com/wwwroot/
$ git clone https://github.com/peter-slovak/OpcacheMonitor.git opcache

Make sure the monitor API scripts are accessible on the same URL that is defined in main.js on Client side. This defaults to /opcache/api, so in the example above, these scripts should be located at http://mydomain.com/opcache/api.

Since the same scripts are used for all the instances, it makes sense to create symlinks from all the docroots to a single repository.

Installation - Client side

Clone the repository into a directory accessible by your web server:

$ cd /var/www/html
$ git clone https://github.com/peter-slovak/OpcacheMonitor.git opcache-monitor
$ cd opcache-monitor
# Don't forget to check out necessary Chart.js libraries
$ git submodule init
$ git submodule update
# OR fetch them manually
$ rmdir chartjs; git clone https://github.com/nnnick/Chart.js.git chartjs

Create a map of servers you wish to monitor, either manually (see examples/example.servers.json) or with a script (examples/generate_servers.py). Save the configuration into servers.json and open the URL (in this case http://localhost/opcache-monitor). If you run the Client side locally, make sure you have a webserver running.

Configuration

Everything should work out-of-the-box, but you can fiddle with the details in main.js. For example, you can change the refresh interval, the color scheme of charts or warning thresholds.

Future

• Add a Settings page to manage servers and tweak settings
• Add optional authentication

Screenshots