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Antrea

Palette supports Antrea controller network interface (CNI) for VMware Kubernetes clusters. Antrea CNI enables each pod to have exclusive IP addresses from the subnet with direct accessibility.

Antrea leverages Open vSwitch to implement pod networking and security features. Open vSwitch enables Antrea to implement Kubernetes network policies efficiently.

Supported Versions​

Troubleshooting​

If routing problems occur or some hosts cannot communicate outside their subnet, this indicates overlapping IP addresses or conflicting CIDR IPs.

Ensure you have provided a non-overlapping IP address for your pod network in Palette's Kubernetes manifest using the podCIDR parameter. The CIDR IP specified with the podCIDR parameter in the Kubernetes manifest always takes precedence.

If you wish to use Antrea CIDRs and have deployed a cluster using Palette, ensure that you have done the following:

  • Removed any value for podCIDR and serviceCIDR in the Kubernetes manifest.
  • Provided a non-overlapping IP address for your pod network.

Terraform​

You can reference the Antrea CNI pack in Terraform with a data resource.

data "spectrocloud_registry" "public_registry" {
 name = "Public Repo"
}

data "spectrocloud_pack_simple" "antrea" {
 name    = "antrea"
 version = "1.9.0"
 type = "helm"
 registry_uid = data.spectrocloud_registry.public_registry.id
}

References​