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Oracle Linux Training Station

Deploy an External Load Balancer

ocne lab tutorial ocne-install
Table of Contents

Links

🌙 Lab

🗒 Tutorial

Details

Oracle Cloud Native Environment is a fully integrated suite for developing and managing cloud native applications. The Kubernetes module is the core module. It deploys and manages containers and automatically installs and configures CRI-O and RunC. CRI-O manages the container runtime for a Kubernetes cluster, which defaults to RunC.

Objectives

At the end of this tutorial, you should be able to do the following:

  • Configure the Kubernetes cluster with the Oracle Cloud Infrastructure load balancer to enable high availability
  • Configure Oracle Cloud Native Environment on a 5-node cluster
  • Verify Load Balancer failover between the control plane nodes completes successfully

Support Note: We recommend using an external load balancer such as Oracle Cloud Infrastructure Load Balancer for production deployments.

Prerequisites

The tutorial uses the following host systems:

  • 6 Oracle Linux instances for Oracle Cloud Native Environment:

    • Operator node (ocne-operator)
    • 3 Kubernetes control plane nodes (ocne-control-01, ocne-control-02, ocne-control-03)
    • 2 Kubernetes worker nodes (ocne-worker-01, ocne-worker-02)

  • An Oracle Linux system for installing kubectl (devops-node)

    Note: We recommend that production environments have a cluster with at least five control plane nodes and three worker nodes.

  • Configure each system with the following:

    • The latest Oracle Linux with the Unbreakable Enterprise Kernel Release 7 (UEK R7)
    • An oracle user account with sudo access
    • Key-based SSH, also known as passwordless SSH, between the instances