view mod_reload_components/README.markdown @ 4542:fb4a50bf60f1

mod_prometheus: Invoke stats collection if in 'manual' mode Since 10d13e0554f9 a special value for statistics_interval "manual" exists, where a module is expected to invoke processing in connection to collection of stats. This makes internal collection and exporting to Prometheus happens at the same time with no chance of timers getting out of sync.
author Kim Alvefur <zash@zash.se>
date Tue, 13 Apr 2021 23:53:53 +0200
parents 85d04dd87f14
children
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Introduction
============

This module allows to load/unload external components after they have
been added/removed to a configuration file. It is necessary to explicitly
initiate a reload on Prosody either via prosodyctl reload or config:reload().

Example 1:
--------
If Prosody has started with this configuration file:

``` {.lua}
VirtualHost "example.com"
    authentication = "internal_plain"

Component "a.example.com"
    component_secret = "a"

Component "b.example.com"
    component_secret = "b"
```

And the file has changed manually or dynamically to:

``` {.lua}
VirtualHost "example.com"
    authentication = "internal_plain"

Component "a.example.com"
    component_secret = "a"

Component "c.example.com"
    component_secret = "c"
```

Then, the following actions will occur if this module is loaded:

1. The component c.example.com will be loaded and start bouncing for
authentication.
2. The component b.example.com will be unloaded and deactivated. The
connection with it will not be closed, but no further actions will be
executed on Prosody.

Example 2:
--------

If Prosody has started with this configuration file:

``` {.lua}
VirtualHost "example.com"
    authentication = "internal_plain"

Component "a.example.com"
    component_secret = "a"
```

And the file has changed manually or dynamically to:

``` {.lua}
VirtualHost "example.com"
    authentication = "internal_plain"

Component "a.example.com"
    component_secret = "a"

VirtualHost "newexample.com"
        authentication = "internal_plain"

Component "a.newexample.com"
    component_secret = "a"
```

Then, the following actions will occur if this module is loaded:

1. The component a.newexample.com will be loaded and start bouncing for
authentication. Note that its respective VirtualHost is not loaded. Bad
things may happen.

Usage
=====

Copy the module folder into your Prosody modules directory. Place the
module between your enabled modules either into the global or a vhost
section.

No configuration directives are needed

Info
====

-   0.9, works