We are bringing the best of Tectonic to Red Hat OpenShift to build the most secure, hybrid Kubernetes application platform.
This document describes how to add cluster nodes to Tectonic clusters on bare metal.
To scale worker nodes, adjust tectonic_worker_count
in terraform.vars
and run:
$ terraform apply $ terraform plan \
-var-file=build/${CLUSTER}/terraform.tfvars \
-target module.workers \
platforms/metal
After running terraform apply
, power on the machines to PXE boot the new nodes and access the cluster.
Adding controller nodes to an existing Tectonic cluster on bare metal is not officially supported. This feature is planned for a future release.
Each controller in a default bare metal Tectonic cluster runs the etcd service. Tectonic Installer will also accept the client endpoint of an existing external etcd v3 cluster to which it should connect instead.