iteye_18468的博客

  subroutine & action - varnish   subroutine, code section, called in the flow, manipulate http header and other things, action, indicate the next step, used inside subroutine, in format "retu...

variable   some global variable are avaliable in subroutings, in different stage there are different variable avaliable,   ref: https://www.varnish-cache.org/docs/3.0/reference/vcl.html#subrout...