Keystore reload file periodically

I asked the same on StackOverflow but had little response. Hope someone has insight here.

I have setup SSL on my server with “production.conf” pointing to a keystore file on disk. Because the keystore file contains keys that expire every 3 months, whenever it expires, I have to (1) overwrite the keystore file with a new one and (2) restart the server.

I would like to have the server reload from the keystore without requiring a restart, so that there’d be no server downtime. Is this possible? Thank you.