Kubernetes Cluster Configuration

All-in-One Single-Node installation

• In this setup, all the control plane and worker components are installed and running on a single-node.

• While it is useful for learning, development, and testing, it is not recommended for production purposes.

Single Control Plane and Multi-Worker Installation

• A single-control plane node running a stacked etcd instance.

• Multiple worker nodes can be managed by the control plane node.

Single-Control Plane with Single-Node etcd, and Multi-Worker Installation

• A single-control plane node with an external etcd instance.

• Multiple worker nodes can be managed by the control plane node.

Multi-Control Plane and Multi-Worker Installation

• We have multiple control plane nodes configured for High-Availability (HA), with each control plane node running a stacked etcd instance.

• The etcd instances are also configured in an HA etcd cluster and multiple worker nodes can be managed by the HA control plane.

Multi-Control Plane with Multi-Node etcd, and Multi-Worker Installation

• Multiple control plane nodes configured in HA mode, with each control plane node paired with an external etcd instance.

• The external etcd instances are also configured in an HA etcd cluster, and multiple worker nodes can be managed by the HA control plane.

• This is the most advanced cluster configuration recommended for production environments.