Creating Flannel Overlay Network Resources

On Compute Cloud@Customer, the Flannel Overlay network type encapsulates communication between pods in the Flannel Overlay network. The Flannel Overlay network is a simple private overlay virtual network that satisfies the requirements of the OKE networking model by attaching IP addresses to containers. The pods in the private overlay network are only accessible from other pods in the same cluster.

The resource definitions in the following sections create a working example set of network resources for workload clusters when you are using Flannel Overlay networking. Use this configuration as a guide when you create these resources. You can change the values of properties such as CIDR blocks and IP addresses. Don't change the values of properties such as the network protocol, the stateful setting, or the private/public setting.

Create all the network resources in the same compartment.

Use the following sections to manually configure flannel overlay network resources:

• Workload Cluster Network CIDR Ranges (Flannel Overlay)
• Workload Cluster Network Ports (Flannel Overlay)
• Creating a VCN (Flannel Overlay)
• Creating a Worker Subnet (Flannel Overlay)
• Creating a Worker Load Balancer Subnet (Flannel Overlay)
• Creating an OKE Control Plane Subnet (Flannel Overlay)
• Creating an OKE Control Plane Load Balancer Subnet (Flannel Overlay)

To use Terraform scripts to automate the flannel overlay network configuration, see Example Terraform Scripts for Network Resources (Flannel Overlay).