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mod_pubsub_alertmanager/mod_pubsub_alertmanager.lua @ 5645:3a5cf8d80089
mod_http_oauth2: Tweak method of centering the UI
The percentage here was relative to the viewport width, which on some
very wide screens may put the UI slightly outside of the view, requiring
scrolling to see.
By using a unit relative to the height of the viewport, this is avoided
and should work better. But no guarantees, it's still possible to resize
the browser or adjust font sizes so that the UI goes out of view.
author | Kim Alvefur <zash@zash.se> |
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date | Mon, 31 Jul 2023 07:28:09 +0200 |
parent | 5485:67190744b1eb |
rev | line source |
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1 local st = require "util.stanza"; |
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2 local json = require "util.json"; |
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3 local filters = { --[[ TODO what's useful? ]] }; |
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4 local render = require "util.interpolation".new("%b{}", tostring, filters); |
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5 local uuid_generate = require "util.uuid".generate; |
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6 |
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7 -- TODO alertmanager supports inclusion of HTTP auth and OAuth, worth looking |
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8 -- into for using instead of request IP |
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9 |
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10 module:depends("http"); |
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11 |
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12 local pubsub_service = module:depends("pubsub").service; |
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13 |
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14 local error_mapping = { |
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15 ["forbidden"] = 403; |
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16 ["item-not-found"] = 404; |
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17 ["internal-server-error"] = 500; |
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18 ["conflict"] = 409; |
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19 }; |
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20 |
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21 local function publish_payload(node, actor, item_id, payload) |
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22 local post_item = st.stanza("item", { xmlns = "http://jabber.org/protocol/pubsub", id = item_id, }) |
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23 :add_child(payload); |
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24 local ok, err = pubsub_service:publish(node, actor, item_id, post_item); |
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25 module:log("debug", ":publish(%q, true, %q, %s) -> %q", node, item_id, payload:top_tag(), err or ""); |
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26 if not ok then |
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27 return error_mapping[err] or 500; |
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28 end |
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29 return 202; |
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30 end |
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31 |
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32 local global_node_template = module:get_option_string("alertmanager_node_template", "{path?alerts}"); |
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33 local path_configs = module:get_option("alertmanager_path_configs", {}); |
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34 |
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35 function handle_POST(event, path) |
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36 local request = event.request; |
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37 |
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38 local config = path_configs[path] or {}; |
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39 local node_template = config.node_template or global_node_template; |
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40 local publisher = config.publisher or request.ip; |
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41 |
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42 local payload = json.decode(event.request.body); |
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43 if type(payload) ~= "table" then return 400; end |
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44 if payload.version ~= "4" then return 501; end |
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45 |
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46 for _, alert in ipairs(payload.alerts) do |
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47 local item = st.stanza("alerts", {xmlns = "urn:uuid:e3bec775-c607-4e9b-9a3f-94de1316d861:v4", status=alert.status}); |
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48 for k, v in pairs(alert.annotations) do |
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49 item:text_tag("annotation", v, { name=k }); |
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50 end |
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51 for k, v in pairs(alert.labels) do |
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52 item:text_tag("label", v, { name=k }); |
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53 end |
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54 item:tag("starts", { at = alert.startsAt}):up(); |
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55 if alert.endsAt and alert.status == "resolved" then |
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56 item:tag("ends", { at = alert.endsAt }):up(); |
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57 end |
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58 if alert.generatorURL then |
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59 item:tag("link", { href=alert.generatorURL }):up(); |
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60 end |
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61 |
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62 local node = render(node_template, {alert = alert, path = path, payload = payload, request = request}); |
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63 local ret = publish_payload(node, publisher, uuid_generate(), item); |
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64 if ret ~= 202 then |
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65 return ret |
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66 end |
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67 end |
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68 return 202; |
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69 end |
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70 |
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71 local template = module:get_option_string("alertmanager_body_template", [[ |
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72 *ALARM!* |
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73 Status: {status} |
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74 Starts at: {startsAt}{endsAt& |
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75 Ends at: {endsAt}} |
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76 Labels: {labels% |
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77 {idx}: {item}} |
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78 Annotations: {annotations% |
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79 {idx}: {item}} |
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80 ]]); |
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81 |
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82 module:hook("pubsub-summary/urn:uuid:e3bec775-c607-4e9b-9a3f-94de1316d861:v4", function(event) |
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83 local payload = event.payload; |
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84 |
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85 local data = { |
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86 status = payload.attr.status, |
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87 firing = "firing" == payload.attr.status, |
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88 resolved = "resolved" == payload.attr.status, |
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89 annotations = {}, |
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90 labels = {}, |
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91 endsAt = payload:find("ends/@at"), |
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92 startsAt = payload:find("starts/@at"), |
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93 }; |
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94 for label in payload:childtags("label") do |
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95 data.labels[tostring(label.attr.name)] = label:get_text(); |
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96 end |
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97 for annotation in payload:childtags("annotation") do |
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98 data.annotations[tostring(annotation.attr.name)] = annotation:get_text(); |
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99 end |
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100 |
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101 return render(template, data); |
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102 end); |
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103 |
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104 module:provides("http", { |
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105 route = { |
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106 ["POST /*"] = handle_POST; |
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107 ["POST"] = handle_POST; |
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108 }; |
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109 }); |