Connection management

Connection parameters

Parameter	Default	Env variable
Server host	`localhost`	`CLOUD_RPC_HOST`
Server port	`7070`	`CLOUD_RPC_PORT`
Reconnect interval	`3000` ms	`CLOUD_RECONNECT_TIMEOUT`
Keepalive ping interval	`10` s	`CLOUD_RPC_KEEP_ALIVE_TIME_SEC`
Keepalive response timeout	`5` s	`CLOUD_RPC_KEEP_ALIVE_TIMEOUT_SEC`
SSL/TLS	disabled	`CLOUD_RPC_SSL_ENABLED`
Max inbound message size	`4194304` (4 MB)	`CLOUD_RPC_MAX_INBOUND_MESSAGE_SIZE`

If the connection drops, the Cloud Manager waits CLOUD_RECONNECT_TIMEOUT milliseconds before attempting to reconnect. Events continue to accumulate in the cloud_events queue during the outage and are delivered in order once the connection is restored.

For keepalive tuning on unstable networks, see gRPC keep-alive. For TLS configuration, see gRPC over SSL.

Proxy support

When Edge runs behind an HTTP CONNECT proxy, set the following variables:

Variable	Default	Description
`CLOUD_RPC_PROXY_ENABLED`	`false`	Enables proxy routing for the gRPC connection.
`CLOUD_RPC_PROXY_HOST`	(empty)	Proxy hostname or IP address.
`CLOUD_RPC_PROXY_PORT`	`0`	Proxy port.
`CLOUD_RPC_PROXY_USERNAME`	(empty)	Proxy username, if authentication is required.
`CLOUD_RPC_PROXY_PASSWORD`	(empty)	Proxy password, if authentication is required.

For a step-by-step proxy setup guide, see Connect Edge behind a proxy.