Note this method for xCAT usage is largely superseded by using a collective instead, and using nodeconsole rather than rcons. There remain scenarios however where remote access is expected.

Confluent CLI access is normally local, after using SSH to access a management node. However, it also supports remote access, and this is a key functionality when used in conjunction with xCAT in a service node setup.

First, on every confluent server you want to access, a user must be created, using the same procedure as creating a user for the Web API:

useradd demouser
passwd demouser
confetty create /users/demouser role=admin

Additionally, a TLS certificate must be provided, with the private key in /etc/confluent/privkey.pem and the certificate in /etc/confluent/srvcert.pem. You can generate such certificates using the collective command:

collective gencert

At this point, xCAT’s rcons will take care of connecting to the correct server. However, it will prompt for your confluent user and passphrase each time. The user and password may alternatively be provided via environment variables:


Additionally, while rcons automatically connects to the relevant confluent server, other confluent commands currently do not get automatically routed. If you want to run a confluent command such as nodepower explicitly against another host, this can be done by setting the CONFLUENT_HOST variable: