Install a highly available Valkey deployment New#

To provide high availability and data persistence, Mirantis Secure Registry (MSR) 4 supports external Valkey configurations. During deployment, select the Valkey-only (replication) architecture for the Valkey backend. For more information, see Valkey-only (replication) deployment.

Valkey-only (Standard Replication)#

In this mode, MSR connects to a Valkey cluster configured with a master-replica relationship. Data is written to the master node and asynchronously replicated to one or more replicas.

Use this setup for development or staging environments that require data redundancy but can tolerate a short manual-intervention window for failover.

This setup does not include automatic failover. If the master node goes down, MSR loses write capability until a replica is manually promoted to master or the master node is restored.