CODEWITHSUNDEEP
architectureopenshiftcluster-computingredhatokd
Nick Foster
Nick Foster

Reputation: 23

OKD Production Cluster Architecture

I would like to create a production cluster with 6 nodes: 3 master-etcd nodes and 3 computing nodes. I'm using external balancing machine for masters. My questions are:

  1. Is it possible to install infra nodes on computing nodes?
  2. I know that EFK is installed by default in OKD cluster, so is it possible to disable the installation of EFK component?

Thank you for your answers in advance

Upvotes: 1

Views: 231

Answers (1)

Nick
Nick

Reputation: 2034

Is it possible to install infra nodes on computing nodes?

Infra nodes are nothing but worker nodes that you designate to run certain workloads (using some combination of labels, taints, tolerances, affinity, and anti-affinity rules), so you can not deploy special nodes at all and by default everything will run across the worker nodes.

The smallest recommended HA configuration for OpenShift / OKD is 3 Control Plane hosts and 2 Worker hosts, so your architecture is sufficient for an HA setup.

I know that EFK is installed by default in OKD cluster, so is it possible to disable the installation of EFK component?

The cluster-logging operator (what provides EFK) is not installed by default, though there are other cluster operators are installed by default that you can't disable (the cluster-monitoring operator for example).

Upvotes: 1

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