How Do You Protect Kubernetes Applications Running on VMware Tanzu?

VMware Tanzu Kubernetes Grid (TKG) enables organizations to run Kubernetes clusters across private cloud, hybrid cloud, and public cloud environments. As containerized workloads increase, protecting Kubernetes applications requires a different approach than traditional infrastructure backup.

A Kubernetes application typically consists of multiple interconnected components:

Kubernetes objects such as Deployments, StatefulSets, and Services

Persistent volumes containing application data

Configuration resources including secrets and config maps

Application packaging frameworks such as Helm charts

Operator-managed services and automation workflows

Backing up only storage volumes is not enough. Without capturing the Kubernetes objects and deployment metadata, the restored environment cannot recreate the full application state.

Application-aware Kubernetes backup captures the entire application definition and state, enabling restoration to any point in time and across different clusters.

This capability supports critical operational goals including:

Disaster recovery

Workload migration across clusters or clouds

Infrastructure modernization

Platform portability

Modern Kubernetes backup platforms must integrate directly with the Kubernetes API to capture application metadata and relationships during backup operations.

Step 1 – Identify Application Boundaries

Map Kubernetes applications by namespace, including persistent volumes and dependent services.

Step 2 – Capture Kubernetes Objects

Ensure backup workflows include metadata such as labels, configuration files, and deployment manifests.

Step 3 – Protect Persistent Volumes

Back up all attached storage volumes used by containerized workloads.

Step 4 – Enable Application-Level Backup Policies

Define policies that protect entire applications rather than individual resources.

Step 5 – Validate Cross-Cluster Restore

Test restoration of applications to alternate Kubernetes clusters to confirm portability.

Step 6 – Automate Backup Scheduling

Implement automated policies that continuously protect workloads across all clusters.

Back up both data and Kubernetes configuration objects.

Store backups outside the production cluster failure domain.

Maintain compatibility across Kubernetes distributions.

Test restore workflows regularly.

Ensure backup policies align with RPO and RTO requirements.

These practices enable reliable recovery and migration of containerized workloads in modern cloud-native infrastructure.

Why can’t traditional VM backups protect Kubernetes applications?

Because Kubernetes workloads depend on configuration objects and orchestration metadata beyond disk data .

What must be included in a Kubernetes application backup?

Persistent volumes, Kubernetes objects, deployment configurations, and associated metadata.

Can Kubernetes applications be restored to another cluster?

Yes. Kubernetes-native backup solutions allow cross-cluster restoration and migration.

What is application-aware backup in Kubernetes?

A method that captures both data and the Kubernetes resources required to rebuild the application environment.

Why is cross-cloud portability important?

It allows organizations to move workloads between infrastructure providers without rebuilding applications manually .