mod_compat_roles: Fix attempt to index a nil value #1847
permissions[] is not a map with role names as keys since 817bc9873fc2
but instead a level with host names were added. This was likely an
oversight.
Refactored towards railroad.
module:set_global()
local custom_metric = require "core.statsmanager".metric
local gc_bytes = custom_metric(
"gauge", "lua_heap", "bytes",
"Memory used by objects under control of the Lua garbage collector"
):with_labels()
module:hook("stats-update", function ()
local kbytes = collectgarbage("count");
gc_bytes:set(kbytes * 1024);
end);
custom_metric("gauge", "lua_info", "", "Lua runtime version", { "version" }):with_labels(_VERSION):set(1);