This question is probably so mind-numbingly simple that no one has had to ask it… but… how exactly do I get the public key?
Most of the instructions I find online assume you’ve been sent the keys in an email. I’ve managed to follow half a dozen different step-by-step instructions to eventually, painstakingly, generate a private key, and can copy/paste it from the virtual console into the appropriate field (on Google App Engine), but it also needs a “PEM encoded X.509 public key certificate”.
Where the heck do I get this? Like, quite literally, what do I type into the virtual console? It says that it saved it at “/etc/letsencrypt/live/[REDACTED].com/fullchain.pem” but if I paste that (the real version) into the console it just says “access denied”.
I’ve searched here and Google but I may as well be searching for “how to drink water from a cup”, or something equally obvious which no one is talking about. :_(