How to manage application config?

[Yan Gabriel Minário]

Right now I’m importing a config module at the top of my content_by_lua that looks somewhat like this:

local json = require 'cjson'

return {

bot_api_key = os.getenv("TG_TOKEN"),

superadmins = json.decode(os.getenv(“SUPERADMINS")),

…

}

I wonder if this module is being cached or is it running countless ‘os.getenv’ calls on every request and/or if there’s any better way to manage application config on openresty.

[Robert Paprocki]

If the data is read-only, you can share it simply as a public Lua module member: https://github.com/openresty/lua-nginx-module#data-sharing-within-an-nginx-worker

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