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nginxlualets-encryptopenresty

OpenResty auto_ssl too long lua code block error

I'm using OpenResty with nginx to auto-obtain SSL certs from Let's Encrypt. There's a lua function where you can allow certain domains. In this function, I have a regex to whitelist my domains. After I add a certain amount (not sure the exact amount), I start getting this error:

nginx: [emerg] too long lua code block, probably missing terminating characters in /usr/local/openresty/nginx/conf/nginx.conf:60.

Shrinking down that string makes the error go away.

I'm not familiar with lua, but here's the example code. I have a few hundred domains to add in here.

auto_ssl:set("allow_domain", function(domain)
  return ngx.re.match(domain, "^(domain1.com|domain2.com|domain3.com....)$", "ijo")
end)

Do I need to define this string ahead of time, or maybe specify it's length somewhere?

EDIT ok, so I was thinking about this another way. Does anyone see an issue if I were to try this? Any sort of performance issues, or lua related things? Maybe there's a more efficient way of doing this?

auto_ssl:set("allow_domain", function(domain)
  domains = [[
    domain1.com
    domain2.com
    domain3.com
    -- continues up to domain300.com
  ]]
  i, j = string.find(domains, domain)
  return i ~= nil
end)
Solution

  • OpenResty allows for loading more complex lua code through files. https://github.com/openresty/lua-nginx-module#init_by_lua_file That is just one directive. There are multiple ways you can load lua code. This way worked for me.