Dockerfile

FROM openresty/openresty:alpine

COPY nginx.conf /usr/local/openresty/nginx/conf

COPY test.lua /usr/local/openresty/nginx/test.lua

COPY required.lua /usr/local/openresty/lualib/required.lua

nginx.conf

worker_processes 1;

error_log logs/error.log info;

events {
    worker_connections 512;
}

http {

    server {
        listen 80;

        location / {
            content_by_lua_file test.lua;
        }
    }
}

required.lua

return function()
	ngx.say("test")
end

test.lua

require"required"()