Where to put a gpg key on pulp3 server

[xm1234567]

Hello,
On a pulp3 server controlled by docker composer , to save some gpg key on it, where should I put it?
On pulp2, we put it under:
/var/lib/pulp/static/$keyname. gpg

Thanks in advance,

[xm1234567]

gpg key is static files, I will check with this issue:

Single-process image: pulp-api container does not serve static files / assets