Mercurial > prosody-modules

annotate mod_munin/mod_munin.lua @ 5265:f845c218e52c

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mod_http_oauth2: Allow revoking a token without OAuth client credentials If you have a valid token, and you're not supposed to have it, revoking it seems the most responsible thing to do with it, so it should be allowed, while if you are supposed to have it, you should also be allowed to revoke it.
author Kim Alvefur <zash@zash.se>
date Tue, 21 Mar 2023 22:02:38 +0100
parents 7e5c8186f121
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 module:set_global();
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2
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3 local s_format = string.format;
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4 local t_insert = table.insert;
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5 local t_concat = table.concat;
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6 local array = require"util.array";
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7 local it = require"util.iterators";
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8 local mt = require"util.multitable";
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9
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10 local meta = mt.new(); meta.data = module:shared"meta";
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11 local data = mt.new(); data.data = module:shared"data";
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12
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13 local munin_listener = {};
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14 local munin_commands = {};
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15
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16 local node_name = module:get_option_string("munin_node_name", "localhost");
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17 local ignore_stats = module:get_option_set("munin_ignored_stats", { });
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18
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19 local function clean_fieldname(name)
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20 return (name:gsub("[^A-Za-z0-9_]", "_"):gsub("^[^A-Za-z_]", "_%1"));
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21 end
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22
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23 function munin_listener.onconnect(conn)
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24 -- require"core.statsmanager".collect();
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25 conn:write("# munin node at "..node_name.."\n");
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26 end
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27
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28 function munin_listener.onincoming(conn, line)
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29 line = line and line:match("^[^\r\n]+");
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30 if type(line) ~= "string" then return end
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31 -- module:log("debug", "incoming: %q", line);
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32 local command = line:match"^%w+";
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33 command = munin_commands[command];
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34 if not command then
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35 conn:write("# Unknown command.\n");
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36 return;
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37 end
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38 local ok, err = pcall(command, conn, line);
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39 if not ok then
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40 module:log("error", "Error running %q: %s", line, err);
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41 conn:close();
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42 end
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43 end
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44
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45 function munin_listener.ondisconnect() end
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46
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47 function munin_commands.cap(conn)
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48 conn:write("cap\n");
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49 end
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50
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51 function munin_commands.list(conn)
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52 conn:write(array(it.keys(data.data)):concat(" ") .. "\n");
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53 end
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54
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55 function munin_commands.config(conn, line)
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56 -- TODO what exactly?
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57 local stat = line:match("%s(%S+)");
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58 if not stat then conn:write("# Unknown service\n.\n"); return end
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59 for _, _, k, value in meta:iter(stat, "", nil) do
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60 conn:write(s_format("%s %s\n", k, value));
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61 end
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62 for _, name, k, value in meta:iter(stat, nil, nil) do
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63 if name ~= "" and not ignore_stats:contains(name) then
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64 conn:write(s_format("%s.%s %s\n", name, k, value));
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65 end
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66 end
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67 conn:write(".\n");
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68 end
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69
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70 function munin_commands.fetch(conn, line)
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71 local stat = line:match("%s(%S+)");
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72 if not stat then conn:write("# Unknown service\n.\n"); return end
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73 for _, name, value in data:iter(stat, nil) do
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74 if not ignore_stats:contains(name) then
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75 conn:write(s_format("%s.value %.12f\n", name, value));
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76 end
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77 end
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78 conn:write(".\n");
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79 end
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80
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81 function munin_commands.quit(conn)
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82 conn:close();
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83 end
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84
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85 module:hook("stats-updated", function (event)
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86 local all_stats, this = event.stats_extra;
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87 local host, sect, name, typ, key;
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88 for stat, value in pairs(event.changed_stats) do
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89 if not ignore_stats:contains(stat) then
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90 this = all_stats[stat];
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91 -- module:log("debug", "changed_stats[%q] = %s", stat, tostring(value));
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92 host, sect, name, typ = stat:match("^/([^/]+)/([^/]+)/(.+):(%a+)$");
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93 if host == nil then
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94 sect, name, typ = stat:match("^([^.]+)%.(.+):(%a+)$");
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95 elseif host == "*" then
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96 host = nil;
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97 end
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98 if sect:find("^mod_measure_.") then
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99 sect = sect:sub(13);
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100 elseif sect:find("^mod_statistics_.") then
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101 sect = sect:sub(16);
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102 end
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103 key = clean_fieldname(s_format("%s_%s_%s", host or "global", sect, typ));
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104
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105 if not meta:get(key) then
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106 if host then
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107 meta:set(key, "", "graph_title", s_format("%s %s on %s", sect, typ, host));
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108 else
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109 meta:set(key, "", "graph_title", s_format("Global %s %s", sect, typ));
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110 end
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111 meta:set(key, "", "graph_vlabel", this and this.units or typ);
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112 meta:set(key, "", "graph_category", sect);
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113
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114 meta:set(key, name, "label", name);
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115 elseif not meta:get(key, name, "label") then
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116 meta:set(key, name, "label", name);
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117 end
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118
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119 data:set(key, name, value);
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120 end
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121 end
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122 end);
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123
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124 local function openmetrics_handler(event)
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125 local registry = event.metric_registry
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126 local host, sect, name, typ, key;
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127 for family_name, metric_family in pairs(registry:get_metric_families()) do
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128 if not ignore_stats:contains(family_name) then
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129 -- module:log("debug", "changed_stats[%q] = %s", stat, tostring(value));
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130 local host_key
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131 if metric_family.label_keys[1] == "host" then
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132 host_key = 1
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133 end
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134 if family_name:sub(1, 12) == "prosody_mod_" then
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135 sect, name = family_name:match("^prosody_mod_([^/]+)/(.+)$")
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136 else
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137 sect, name = family_name:match("^([^_]+)_(.+)$")
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138 end
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139 name = clean_fieldname(name)
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140
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141 local metric_type = metric_family.type_
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142 if metric_type == "gauge" or metric_type == "unknown" then
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143 typ = "GAUGE"
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144 else
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145 typ = "DCOUNTER"
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146 end
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147
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148 for labelset, metric in metric_family:iter_metrics() do
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149 host = host_key and labelset[host_key] or "global"
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150 local name_parts = {}
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151 for i, label in ipairs(labelset) do
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152 if i ~= host_key then
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153 t_insert(name_parts, label)
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154 end
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155 end
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156 local full_name = t_concat(name_parts, "_")
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157 local display_name = #name_parts > 0 and full_name or name
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158 key = clean_fieldname(s_format("%s_%s_%s", host or "global", sect, name));
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159
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160 local unit
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161 local factor = 1
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162 unit = metric_family.unit
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163 if unit == "seconds" and typ == "DCOUNTER" then
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164 factor = 100
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165 unit = "%time"
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166 elseif typ == "DCOUNTER" then
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167 unit = unit .. "/s"
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168 end
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169
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170 if not meta:get(key, "") then
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171 meta:set(key, "", "graph_title", s_format(metric_family.description));
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172 if unit ~= "" then
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parents: 3130
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173 meta:set(key, "", "graph_vlabel", unit);
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
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parents: 3130
diff changeset
174 end
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
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parents: 3130
diff changeset
175 meta:set(key, "", "graph_category", sect);
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
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176 end
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
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parents: 3130
diff changeset
177 if not meta:get(key, display_name) then
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
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178 meta:set(key, display_name, "label", display_name);
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
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parents: 3130
diff changeset
179 meta:set(key, display_name, "type", typ)
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
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180 end
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
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parents: 3130
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181
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
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diff changeset
182 for suffix, extra_labels, value in metric:iter_samples() do
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
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parents: 3130
diff changeset
183 if metric_type == "histogram" or metric_type == "summary" then
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
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parents: 3130
diff changeset
184 if suffix == "_sum" then
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
Jonas Schäfer <jonas@wielicki.name>
parents: 3130
diff changeset
185 data:set(key, display_name, value * factor)
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
Jonas Schäfer <jonas@wielicki.name>
parents: 3130
diff changeset
186 end
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
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parents: 3130
diff changeset
187 elseif suffix == "_total" or suffix == "" then
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
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parents: 3130
diff changeset
188 data:set(key, display_name, value * factor)
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parents: 3130
diff changeset
189 end
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
Jonas Schäfer <jonas@wielicki.name>
parents: 3130
diff changeset
190 end
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
Jonas Schäfer <jonas@wielicki.name>
parents: 3130
diff changeset
191 end
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
Jonas Schäfer <jonas@wielicki.name>
parents: 3130
diff changeset
192 end
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
Jonas Schäfer <jonas@wielicki.name>
parents: 3130
diff changeset
193 end
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
Jonas Schäfer <jonas@wielicki.name>
parents: 3130
diff changeset
194 end
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
Jonas Schäfer <jonas@wielicki.name>
parents: 3130
diff changeset
195
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diff changeset
196 module:hook("openmetrics-updated", openmetrics_handler);
7e5c8186f121 mod_munin: Port to new OpenMetrics based statistics module
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parents: 3130
diff changeset
197
1624
0f20390f6fa5 mod_munin: Implementation of the Munin collection protocol
Kim Alvefur <zash@zash.se>
parents:
diff changeset
198 module:provides("net", {
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parents:
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199 listener = munin_listener;
0f20390f6fa5 mod_munin: Implementation of the Munin collection protocol
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parents:
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200 default_mode = "*l";
0f20390f6fa5 mod_munin: Implementation of the Munin collection protocol
Kim Alvefur <zash@zash.se>
parents:
diff changeset
201 default_port = 4949;
0f20390f6fa5 mod_munin: Implementation of the Munin collection protocol
Kim Alvefur <zash@zash.se>
parents:
diff changeset
202 });
0f20390f6fa5 mod_munin: Implementation of the Munin collection protocol
Kim Alvefur <zash@zash.se>
parents:
diff changeset
203