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plugins/mod_http_openmetrics.lua @ 13114:025c38ee885d
util.dependencies: Print tables itself to reduce number of imports
Rationale: See diffstat
When this module is imported, it ends up calling stty via term_width()
in util.human.io.table(). When this happens outside of a terminal, the
following message is sent to stdout:
stty: 'standard input': Inappropriate ioctl for device
Not importing this module avoids that.
Furthermore three is value in this module having minimal dependencies as
they might not be available when it does the checks.
Ref a1fed82c44b9
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Fri, 26 May 2023 21:18:27 +0200 (19 months ago) |
parent | 12977:74b9e05af71e |
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-- Export statistics in OpenMetrics format -- -- Copyright (C) 2014 Daurnimator -- Copyright (C) 2018 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> -- Copyright (C) 2021 Jonas Schäfer <jonas@zombofant.net> -- -- This module is MIT/X11 licensed. module:set_global(); local statsman = require "prosody.core.statsmanager"; local ip = require "prosody.util.ip"; local get_metric_registry = statsman.get_metric_registry; local collect = statsman.collect; local get_metrics; local permitted_ips = module:get_option_set("openmetrics_allow_ips", { "::1", "127.0.0.1" }); local permitted_cidr = module:get_option_string("openmetrics_allow_cidr"); local function is_permitted(request) local ip_raw = request.ip; if permitted_ips:contains(ip_raw) or (permitted_cidr and ip.match(ip.new_ip(ip_raw), ip.parse_cidr(permitted_cidr))) then return true; end return false; end function get_metrics(event) if not is_permitted(event.request) then return 403; -- Forbidden end local response = event.response; response.headers.content_type = "application/openmetrics-text; version=0.0.4"; if collect then -- Ensure to get up-to-date samples when running in manual mode collect() end local registry = get_metric_registry() if registry == nil then response.headers.content_type = "text/plain; charset=utf-8" response.status_code = 404 return "No statistics provider configured\n" end return registry:render(); end module:depends "http"; module:provides("http", { default_path = "metrics"; route = { GET = get_metrics; }; });