Was this page helpful?
Configure IPv6-only networking¶
What you’ll achieve: Deploy a ScyllaDB cluster that uses only IPv6 for all communication.
Before you begin:
You have a Kubernetes cluster with IPv6 support
You have ScyllaDB Operator installed
You have
kubectlconfiguredYour cluster and applications support IPv6-only operation
After completion: Your ScyllaDB cluster will use only IPv6 for all communication.
Warning
Experimental Feature: IPv6-only configurations are experimental. See Production readiness for details. For production deployments, use dual-stack with IPv4 or dual-stack with IPv6 instead.
Step 1: Apply the configuration¶
Apply the IPv6-only configuration:
kubectl create namespace scylla
kubectl apply -f=https://raw.githubusercontent.com/scylladb/scylla-operator/v1.21/examples/ipv6/scylla-cluster-ipv6.yaml
Step 2: Wait for the cluster to be ready¶
Monitor pod creation:
kubectl get pods -n scylla -l scylla-operator.scylladb.com/pod-type=scylladb-node -w
Wait until all pods show Running status.
Step 3: Verify IPv6-only configuration¶
Check that pods have IPv6 addresses:
kubectl get pods -n scylla -l scylla-operator.scylladb.com/pod-type=scylladb-node -o wide
Expected output shows IPv6 addresses in the IP column:
NAME READY STATUS RESTARTS AGE IP NODE
scylla-ipv6-datacenter-... 2/2 Running 0 5m fd00:10:244:1::7f scylla-worker-1
scylla-ipv6-datacenter-... 2/2 Running 0 4m fd00:10:244:2::6d scylla-worker-2
scylla-ipv6-datacenter-... 2/2 Running 0 3m fd00:10:244:3::6c scylla-worker-3
Step 4: Verify cluster health¶
Check that all nodes are up:
NAMESPACE=scylla
CLUSTER_NAME=scylla-ipv6
pods=$(kubectl -n "${NAMESPACE}" get pods -l scylla/cluster="${CLUSTER_NAME}" -l scylla-operator.scylladb.com/pod-type=scylladb-node -o name)
for pod in ${pods}; do
kubectl -n "${NAMESPACE}" exec "${pod}" -c scylla -- nodetool status
done
Expected output shows IPv6 addresses:
Datacenter: datacenter
======================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
-- Address Load Tokens Owns Host ID Rack
UN fd00:10:244:1::7f 501.79 KB 256 ? 4583fff5-2aa6-4041-9be8-c74bcabaff8c rack
UN fd00:10:244:2::6d 494.49 KB 256 ? b1f889b4-80e7-4685-a3c5-1b81797c2ce4 rack
UN fd00:10:244:3::6c 494.96 KB 256 ? 7a4bb6da-415e-4fc3-a6ca-0369c0e76bf0 rack