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Created July 19, 2018 06:01
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Drone agent loses connection when deployed with Docker Swarm
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solution.md

Solution:

In your Drone server set the environment variable:

DRONE_KEEPALIVE_MIN_TIME: 5s

In your Drone agent set the environment variables:

DRONE_KEEPALIVE_TIME: 20s
DRONE_KEEPALIVE_TIMEOUT: 20s

This is an issue for Drone 0.8.5, as I write this in 2018-07-19.

With Kubernetes it seems to be a problem too.

Your Drone agent could show logs like:

grpc error: done(): code: Unavailable: rpc error: code = Unavailable desc = grpc: the connection is unavailable

grpc: addrConn.resetTransport failed to create client transport: connection error: desc = "transport: Error while dialing dial tcp: lookup drone-server on 127.0.0.11:53: no such host"; Reconnecting to {drone-server:9000 <nil>}

This thread mentions possible fixes in progress and some alternative fixes:

https://discourse.drone.io/t/0-8-1-agent-loses-connection-overnight/864/23

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