These docs are for Cribl Stream 4.6 and are no longer actively maintained.

See the latest version (4.20).

Boot fully provisioned Workers

Cribl Stream Workers can completely provision themselves, directly from the Leader, upon initial boot. This means that a group of any number of Workers can launch and be fully functional within the cluster, in seconds.

How Does It Work? ​

A Cribl Stream Leader Node provides a bootstrap API endpoint, at /init/install-worker.sh, which returns a shell script. You can run this shell script on any supported machine (see Restrictions below), without Cribl Stream installed. This fully provisions the machine as a Worker Node.

Although you can specify the download URL when you execute the initial curl command, the Cribl Stream package is not downloaded until you generate the script via the API, and then execute it.

For additional information on using environment variables to set the hostname, see Setting the Hostname.

Requirements ​

All Worker Nodes’ hosts must enable ongoing outbound communication to the Leader’s port 4200, to enable the Leader to manage the Workers. While the bootstrap script runs, firewalls on each Worker’s host must also allow outbound communication on the following ports:

• Port 443 to