nginx-luaGet hostname with Lua

server {
  location / {
    content_by_lua_block {
      ngx.say( ngx.var.host );
    }
  }
}ctrl + cyoutubegithub

`content_by_lua_block` nginx-lua module directive to specify block of Lua code	`ngx.say` output given text to client
`ngx.var` access Nginx variables	`host` variable with hostname value

ngx.say( ngx.var.host );

lua.onelinerhub.com