Mercurial > prosody-modules
view mod_pubsub_alertmanager/mod_pubsub_alertmanager.lua @ 4764:a754f7e380b2
mod_dnsupdate: Rewrite port config vs DNS comparison code
I'm not sure if it was correct, which means it was hard to understand
and thus needed to be simplified. Hope this accomplishes that.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Mon, 08 Nov 2021 23:03:14 +0100 |
parents | adda872fa9e1 |
children | 67190744b1eb |
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local st = require "util.stanza"; local json = require "util.json"; local filters = { --[[ TODO what's useful? ]] }; local render = require "util.interpolation".new("%b{}", tostring, filters); local uuid_generate = require "util.uuid".generate; -- TODO alertmanager supports inclusion of HTTP auth and OAuth, worth looking -- into for using instead of request IP module:depends("http"); local pubsub_service = module:depends("pubsub").service; local error_mapping = { ["forbidden"] = 403; ["item-not-found"] = 404; ["internal-server-error"] = 500; ["conflict"] = 409; }; local function publish_payload(node, actor, item_id, payload) local post_item = st.stanza("item", { xmlns = "http://jabber.org/protocol/pubsub", id = item_id, }) :add_child(payload); local ok, err = pubsub_service:publish(node, actor, item_id, post_item); module:log("debug", ":publish(%q, true, %q, %s) -> %q", node, item_id, payload:top_tag(), err or ""); if not ok then return error_mapping[err] or 500; end return 202; end local node_template = module:get_option_string("alertmanager_node_template", "{path?alerts}"); function handle_POST(event, path) local request = event.request; local payload = json.decode(event.request.body); if type(payload) ~= "table" then return 400; end if payload.version ~= "4" then return 501; end for _, alert in ipairs(payload.alerts) do local item = st.stanza("alerts", {xmlns = "urn:uuid:e3bec775-c607-4e9b-9a3f-94de1316d861:v4", status=alert.status}); for k, v in pairs(alert.annotations) do item:text_tag("annotation", v, { name=k }); end for k, v in pairs(alert.labels) do item:text_tag("label", v, { name=k }); end item:tag("starts", { at = alert.startsAt}):up(); if alert.endsAt and alert.status == "resolved" then item:tag("ends", { at = alert.endsAt }):up(); end if alert.generatorURL then item:tag("link", { href=alert.generatorURL }):up(); end local node = render(node_template, {alert = alert, path = path, payload = payload, request = request}); local ret = publish_payload(node, request.ip, uuid_generate(), item); if ret ~= 202 then return ret end end return 202; end local template = module:get_option_string("alertmanager_body_template", [[ *ALARM!* Status: {status} Starts at: {startsAt}{endsAt& Ends at: {endsAt}} Labels: {labels% {idx}: {item}} Annotations: {annotations% {idx}: {item}} ]]); module:hook("pubsub-summary/urn:uuid:e3bec775-c607-4e9b-9a3f-94de1316d861:v4", function(event) local payload = event.payload; local data = { status = payload.attr.status, firing = "firing" == payload.attr.status, resolved = "resolved" == payload.attr.status, annotations = {}, labels = {}, endsAt = payload:find("ends/@at"), startsAt = payload:find("starts/@at"), }; for label in payload:childtags("label") do data.labels[tostring(label.attr.name)] = label:get_text(); end for annotation in payload:childtags("annotation") do data.annotations[tostring(annotation.attr.name)] = annotation:get_text(); end return render(template, data); end); module:provides("http", { route = { ["POST /*"] = handle_POST; ["POST"] = handle_POST; }; });