Add --rpc-host option for Roadrunner
#619
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What
This PR adds the
--rpc-hostoption to be used for the Roadrunner server. Its value defaults to the--hostoption to preserve backward compatibility.Why
When deploying to AWS ECS as a Docker container and Nginx sidecar, the
--hostoption must be set to0.0.0.0to listen to any host.However, the RPC host needs to be set to the loopback interface
127.0.0.1. The current logic sets both hosts to the same, making this impossible to configure.We've already implemented this as a custom command on our own codebase, which has been deployed to a production environment and is successfully working as we expect.
Without this, we get a bunch of
network errorlogs and the task is never able to start due to the server being unable to respond to any requests: