tree 6614a65669fe25abf38249e21458339f3441a45f
parent 3e8bfd991cb36b494ba8b2b79cde17fc66b1492d
author Orhan Kupusoglu <orhan.kupusoglu@netsia.com> 1616512405 -0700
committer Orhan Kupusoglu <orhan.kupusoglu@netsia.com> 1620676050 +0300

[VOL-3386] Add support for secure gRPC in openolt-agent

The init script of the openolt service may start with '--enable-tls <TLS_OPTION>' argument for the gRPC server.
Default is insecure with no '--enable-tls' argument.
The TLS capability depends upon the certificates stored at the keystore/ directory: 1. root.crt (CA public key), 2. server.crt (public key), 3.server.key (private key).
Four unit tests are added for the secure gRPC server which work with the keystore-test/ directory.
The certificates stored at the keystore-test/ directory are self-signed certificates, valid until Apr 11 23:16:58 2031 GMT.

Change-Id: I4d18a98a0193f501f922360c79f54b0fcedf14a5