How to avoid the flakyness that comes with "gpg --recv-key"?
Download the key once:

gpg --keyserver pgpkeys.mit.edu --recv-key A0E98066
gpg --export A0E98066 &gt; openresty-agentzh-A0E98066.gpg


Then later you can import the key without having to access the keyserver:

gpg --import openresty-agentzh-A0E98066.gpg