Munin contributed plugins

Munin Plugin for Varnish 4

==========================

Modified version of the plugin for Varnish 2/3 from the munin distribution

to adapt to the XML output of Varnish 4 varnishstat.

Installation

------------

- Copy `varnish4_` to the Munin plugins directory (`/usr/share/munin/plugins/`)

- Make `varnish4_` runnable (`chmod +x /usr/share/munin/plugins/varnish4_`)

Configuration

-------------

Run `munin-node-configure --shell` and link the aspects to monitor to

your actual plugins directory.

In your plugins.conf add

```

[varnish4_*]

     group varnish

     env.varnishstat varnishstat

     env.name

```

`group varnish` Since Varnish version 4.1, Varnish shared log utilities must be run in a context with *varnish* group membership.

`env.varnishstat` can be a full path to varnishstat if it's

not in the path already.

`env.name` is blank (undefined) by default and can be used to specify a -n

name argument to varnish if multiple instances are running on the same

server.