Unify equal acl between backends

[Ricardo Fraile]

Hello,


I have multiple backends and some of them share the same acl for the
static content, as example:


backend back-1
    acl no-cookie path_end .gif .jpg .png (+15 more)
    ignore-persist if no-cookie
    ...

backend back-2
    acl no-cookie path_end .gif .jpg .png (+15 more)
    ignore-persist if no-cookie
    ...


I try to look for a solution to define once the "acl no-cookie" but I
can't find a workaround because it only works if I define it under the
same backend.

As middle step, I tried with env vars but it didn't work:

global
    setenv px-static .gif .jpg .png

backend back-1
    acl no-cookie path_end ${px-static}
    ignore-persist if no-cookie
    ...


Does anyone know an alternative method to avoid define the same acl in
each backend, or at least, define once the list of file extensions?



Thanks,