1.1 Introduction to Oracle Container Engine for Kubernetes (OKE)

Oracle Container Engine for Kubernetes is a managed Kubernetes service provided by OCI. We call it OKE for short and we are using a CNCF certified version of Kubernetes.

When you create a cluster with the Quick Start version, a Kubernetes cluster with the following structure is created using OCI resources.

• Control Plane Nodes:

  • In Kubernetes, the Control Plane is an area managed by OCI and is not directly exposed to users.
  • Only information for API Server access is exposed through VNIC to API Subnet on the user’s VCN.
  • Supports both public and private depending on the creation option

• Data Plane Nodes

  • VM or bare metal server is used for Worker Nodes where real user’s containers are running.
  • Developers can directly access Node.
  • Supports both public and private depending on the creation option

• OCI service linkage

  • Provides functions related to other OCI services such as Container Image Registry, Persistent Volume, Load Balancer, IAM, Audit, etc. required for container deployment and service.

• The cost of the OKE cluster itself is free, and you only charge for OCI resources (eg VM Nodes, network usage, storage usage) used by the cluster.