feat(self-managed): Tier-2 HA defaults (NATS 3, OpenBao 3, Cassandra 3 + LOCAL_QUORUM)
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@shobham-nv is already working on this.
Since Aug 19, 2026.
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Description
Description
Enable Tier-2 quorum HA under highAvailability.profile: production:
- NATS: 3 replicas, JetStream RF=2, one pod per node
- OpenBao: HA Raft 3 servers; injector stays at 2
- Cassandra: 3 nodes, one per node; multi-AZ uses NetworkTopologyStrategy + LOCAL_QUORUM; single-DC keeps RF=3 + QUORUM
Dedicated node pools (cassandra,vault,control-plane) must remain usable with capacity in both AZs whenglobal.nodeSelectors.enabled: true.
Definition of Done
- Production HA profile configures NATS 3 + JetStream RF=2
- OpenBao server HA replicas = 3; injector remains 2
- Cassandra replicaCount = 3 with PDBs appropriate for production
- Multi-AZ Cassandra path documents/configures LOCAL_QUORUM + NetworkTopologyStrategy; single-DC keeps QUORUM
- Tier-2 peers are not scheduled on the same node (anti-affinity)
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single-nodeprofile does not require 3-node quorum placement
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