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MinIO Bucket Replication#

This section describes how to configure MinIO bucket replication as part of a Disaster Recovery (DR) solution across multiple Kubernetes clusters. Bucket replication automatically copies objects between MinIO deployments running in different clusters, which helps ensure data availability if one cluster becomes unavailable.

Tip

MinIO replication requires mutual TLS authentication between MinIO instances. During replication, each MinIO instance acts as both a TLS client and a TLS server, so TLS must be configured on both clusters.

When replicating across separate Kubernetes clusters or networks, you must configure custom TLS certificates that include Subject Alternative Names (SANs) for each MinIO endpoint. This guide uses a simplified shared TLS certificate that supports bidirectional replication between clusters.

For production environments, implement a proper certificate management strategy that aligns with your organization's security and infrastructure requirements.