My app is using fastify. I recently upgraded to fastify v4 and I’m getting the error “self signed certificate in certificate chain”.
It seems I need to configure the key and the cert for the server, as documented here https://www.fastify.io/docs/latest/Reference/HTTP2/#secure-https
As I understand App Platform obtains and renews the cert automatically, How can I access the key and certificate?
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According to the App Platform documentation, you can only enable HTTPS for custom domains, and not for the default app platform domain (your-app.ondigitalocean.app).
If you want to enable HTTPS for your app, you will need to add a custom domain, and then add an SSL certificate for that domain.
According to the Fastify documentation, in order to enable HTTPS/HTTP2, you will need to specify the key and cert files in the options object when initializing the Fastify server.