Software /
code /
prosody-modules
File
mod_reload_components/README.markdown @ 4776:13e913471b75
mod_http_admin_api: Ensure freshness of metrics when in manual mode
When in manual collection mode, as recommended for Prometheus,
collection needs to be triggered manually, or they would be stale,
possibly dating from the start of the server. This might vary per metric
depending on how and when the metrics are gathered.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Thu, 18 Nov 2021 19:26:07 +0100 |
parent | 2391:85d04dd87f14 |
line wrap: on
line source
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