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mod_http_muc_log: Fix exception on lack of trailing slash in room path A request to /room leads to the match call returning nil which in turn calls nodeprep(nil). In Prosody 0.11.x this does nothing and simply returns the nil, while in 0.12 it is an error. Now it redirects to the calendar view at /room/ - even for non-existant rooms. Discovered at a deployment with http_paths = { muc_log = "/" } and requests to /robots.txt and similar, which now result in a uses redirect before returning 404.
author Kim Alvefur <zash@zash.se>
date Fri, 22 Apr 2022 14:29:32 +0200
parents f1a63271dcfc
children
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---
labels:
- 'Stage-Beta'
- 'Statistics'
summary: Implementation of the Munin node protocol
...

Summary
=======

This module implements the Munin reporting protocol, allowing you to
collect statistics directly from Prosody into Munin.

Configuration
=============

There is only one recommended option, `munin_node_name`, which specifies
the name that Prosody will identify itself by to the Munin server. You
may want to set this to the same hostname as in the [SRV record][doc:dns]
for the machine.

```lua
modules_enabled = {
    -- your other modules
    "munin",
}

munin_node_name = "xmpp.example.com"
```

You will also want to enable statistics collection by setting:

```lua
statistics_interval = 300 -- every 5 minutes, same as munin
```

## Summary

All these must be in [the global section][doc:configure#overview].

  Option                  Type     Default
  ----------------------- -------- ---------------------------
  munin\_node\_name       string   `"localhost"`
  munin\_ignored\_stats   set      `{ }`
  munin\_ports            set      `{ 4949 }`
  munin\_interfaces       set      `{ "0.0.0.0", "::" }`[^1]

[^1]: Varies depending on availability of IPv4 and IPv6

## Ports and interfaces


`mod_munin` listens on port `4949` on all local interfaces by default.
This can be changed with the standard [port and network configuration][doc:ports]:


``` lua
-- defaults:
munin_ports = { 4949 }
munin_interfaces = { "::", "0.0.0.0" }
```

If you already have a `munin-node` instance running, you can set a
different port to avoid the conflict.

## Configuring Munin

Simply add `munin_node_name` surrounded by brackets to `/etc/munin/munin.conf`:

``` ini
[xmpp.example.com]
address xmpp.example.com
port 4949
```

You can leave out `address` if it equal to the name in brackets, and
leave out the `port` if it is the default (`4949`).

Setting `address` to an IP address may sometimes be useful as the Munin
collection server is not delayed by DNS lookups in case of network
issues.

If you set a different port, or if the hostname to connect to is
different from this hostname, make sure to add `port` and/or `address`
options.

See [Munin documentation][muninconf] for more information.

Compatibility
=============

**Requires** Prosody 0.10 or above

[muninconf]: http://guide.munin-monitoring.org/en/stable-2.0/reference/munin.conf.html