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Simone Morellato
Simone Morellato

Posted on • Originally published at Medium on

How to Manage Multiple Kubernetes Clusters: A DevOps Guide to Sveltos

Hey there, I’m Simone Morellato , and at VMware Tanzu , I’ve seen firsthand the challenges of managing multiple Kubernetes clusters  — from maintaining consistency across different environments to handling multi-tenancy and compliance.

While VMware Tanzu offers a unified platform for Kubernetes operations, there’s a new game-changer : Sveltos.

Sveltos simplifies multi-cluster management with:

Role-Based Access Control (RBAC) for security

Event-driven automation for dynamic deployments

Automated compliance enforcement

Let’s break down how Sveltos can improve your Kubernetes operations and solve real DevOps pain points.

Centralized Management: One Control Plane for Everything

Managing multiple clusters often means jumping between contexts, manually deploying add-ons, and ensuring consistency. Sveltos eliminates this complexity by providing a single control plane for multi-cluster management.

🔹 Single Pane of Glass  — Deploy and manage add-ons, applications, and policies across clusters from one place.

🔹 Dynamic Configuration  — Define and apply configurations declaratively , reducing manual effort.

Think of Sveltos as your Terraform for Kubernetes clusters , giving you infrastructure-as-code capabilities across multiple clusters.

Dynamic Add-on Deployment: Automating Cluster Configurations

In a traditional setup, applying add-ons like Prometheus, Fluent Bit, or Istio across multiple clusters requires:

🚧 Manually applying Helm charts or manifests

🚧 Ensuring compatibility across Kubernetes versions

🚧 Monitoring drift and making adjustments

With Sveltos , you can:

✅ Use ClusterProfiles to define add-ons declaratively

✅ Deploy add-ons dynamically based on Kubernetes label selectors

✅ Ensure GitOps-friendly workflows

It’s like using ArgoCD or Flux , but at the multi-cluster level  — no more manual synchronization across environments.

Event-Driven Automation: Adapting in Real Time

Imagine needing to scale monitoring or security tools automatically when a cluster reaches a certain workload threshold. Traditional methods require:

🚧 Writing custom scripts

🚧 Manually applying changes across multiple clusters

🚧 Waiting for periodic reconciliation loops

With Sveltos , clusters can react to events dynamically.

🔹 Example: If a new node pool is added, Sveltos automatically deploys monitoring agents without intervention.

🔹 Example: If a security vulnerability is detected, Sveltos can apply new policies on affected clusters.

Think of it as Kubernetes operators on steroids , automatically reacting to changes without needing to write custom controllers.

Simplified Multi-Tenancy: Role-Based Access Control (RBAC) Made Easy

Managing multiple teams with different access levels across Kubernetes clusters is challenging. Kubernetes RBAC is powerful but complex to manage across multiple clusters.

Sveltos introduces RoleRequests , allowing tenant admins to:

Delegate access at the namespace or cluster level

Automatically assign permissions based on roles

Ensure compliance with minimal effort

It’s like having AWS IAM roles but for Kubernetes clusters , making multi-tenancy simpler and more secure.

Consistency and Compliance: Keeping Clusters Aligned

One of the biggest challenges in multi-cluster environments is ensuring consistent configurations across different:

🔹 Kubernetes versions

🔹 Security policies

🔹 Add-on versions (e.g., monitoring, logging)

With Sveltos , you can:

Classify clusters dynamically based on configurations

Apply cluster-specific policies automatically

Enforce consistency without manual intervention

Similar to Ansible for servers , Sveltos ensures your clusters stay in sync and don’t drift from their intended state.

Observability and Control: Testing Before You Deploy

Ever made a configuration change only to break production?

With Sveltos , you get DryRun Mode , allowing you to:

✅ Simulate changes before applying them

✅ Analyze the impact of a new policy or deployment

✅ Prevent misconfigurations before they cause downtime

It’s like Terraform Plan for Kubernetes — you see the impact first before committing changes.

Scalability and Efficiency: Scaling Without the Headache

Deploying add-ons across clusters manually is inefficient.

🔹 Traditional methods: Helm, Kustomize, or manual scripts

🔹 Issues: Version mismatches, inconsistent deployments, high manual effort

Sveltos simplifies this with:

Template-Based Deployment  — Define once, deploy everywhere

Automated Drift Detection  — Prevent unwanted configuration drift

It’s like using Kubernetes Helm values files at scale , ensuring all clusters have consistent configurations.

Interoperability and Integration: Works with Your Existing Tools

Sveltos isn’t trying to replace your existing stack — it enhances it.

🔹 Integrates with ClusterAPI for lifecycle management

🔹 Works alongside Helm, ArgoCD, and Flux

🔹 Plays well with GitOps workflows

It’s like adding KEDA-style event-driven scaling to Kubernetes cluster management  — you get automation without losing control.

Conclusion: The Next Step in Kubernetes Management

Managing multiple Kubernetes clusters shouldn’t feel like a never-ending battle. With Sveltos , you get:

Centralized multi-cluster management

Event-driven automation

Simplified RBAC for multi-tenancy

Automated compliance enforcement

Whether you’re scaling Kubernetes at a startup or an enterprise , Sveltos helps you turn operational complexity into automation and efficiency.

🚀 Ready to simplify multi-cluster Kubernetes management?

Check out Sveltos at Sveltos.projectsveltos.io and see how it can transform your DevOps workflows.

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