You can optionally configure the Relay Proxy to store flag data in redis. See configuration for details on setting this up.
The Relay Proxy does not currently support clustered Redis or Redis Sentinel.
Yes. Relay Proxy can connect to Elasticache redis instances as long as cluster mode is disabled.
Yes. To connect to a redis instance which has TLS enabled you just need to prepend the REDIS_ADDRESS location with rediss:// e.g. rediss://localhost:6379.
If connection is lost to Harness servers the Relay Proxy will continue to serve the cached values to connected sdks.
It will continue to attempt to reconnect and once connection is established will sync down the latest data then continue as normal.
Once connection is reestablished with SaaS all flag data is pulled down again. This means even if changes were made on SaaS e.g. flag toggles during the outage they will be picked up once connection is reestablished.
If the Relay Proxy has previously store flag data in redis then even with no connection to Harness servers it will startup successfully using the cached data and serve connected sdks.
This will essentially launch the Relay Proxy in offline mode, as it will not regain connection once internet connection is restored.