agentzh tweeted that future openresty will have `parse_pem_cert` and `set_cert`, which is faster than current methods.
the docs mention using lua-resty-lrucache for the result
i have some questions:
1. does anyone know what the performance difference is?
2. the "old" method of `cert_pem_to_der` was compatible with lua_shared_dict. does anyone know if this method is still compatible?
i'm trying to figure out if i should bother upgrading, and if so how much time I should allocate. i've never used lua-resty-lrucache, so I'd be swapping in two new features, not just one.
