Path to a file containing a PEM formatted CA certificate. Requires
--allow-read.
optional
deprecated
keyFile: string
Server private key file. Requires --allow-read.
optional
transport: "tcp"
optional
alpnProtocols: string[]
Application-Layer Protocol Negotiation (ALPN) protocols to announce to
the client. If not specified, no ALPN extension will be included in the
TLS handshake.