
What are the best open-source tools for your Kubernetes setup?
Kubernetes, also known as K8s, is an open-source system for automating deployments, scaling, and management of containerized applications. It groups containers that make up an application into logical units for easy management and discovery. Kubernetes builds upon 15 years of experience of running production workloads at Google, combined with best-of-breed ideas and practices from the community.
As Kubernetes continues to gain popularity, the demand for robust and reliable open-source tools has also increased. Developers and operators are constantly on the lookout for tools that can help them manage their Kubernetes environments more effectively.
In this post, we will explore nine must-know open-source tools that can help you optimize your Kubernetes environment.
1. Helm
Helm is often referred to as the package manager for Kubernetes. It simplifies the process of deploying, managing, and versioning Kubernetes applications. With Helm, you can define, install, and upgrade even the most complex Kubernetes applications. By using Helm Charts, you can easily share your application configurations and manage dependencies between them.
2. Prometheus
Prometheus is a leading monitoring and alerting toolkit that’s widely adopted within the Kubernetes community. It collects metrics from your Kubernetes clusters, stores them, and allows you to query and visualize the data. Prometheus is essential for keeping an eye on your infrastructure’s performance and spotting issues before they become critical.
Metrics don’t tell the whole story — until you track I/O too. Simplyblock helps surface storage bottlenecks that impact real app performance.
3. Kubectl
Kubectl is the command-line tool that allows you to interact with your Kubernetes clusters. It is indispensable for managing cluster resources, deploying applications, and troubleshooting issues. Whether you’re scaling your applications or inspecting logs, Kubectl provides the commands you need to get the job done.
4. Kustomize
Kustomize is a configuration management tool that helps you customize Kubernetes objects through a file-based approach. It allows you to manage multiple configurations without duplicating YAML manifests. Kustomize’s native support in Kubectl makes it easy to integrate into your existing workflows.
5. Argo CD
Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. It enables you to manage your application deployments through Git repositories, ensuring that your applications are always in sync with your Git-based source of truth. Argo CD offers features like automated sync, rollback, and health status monitoring, making it a powerful tool for CI/CD pipelines.
GitOps works great — until your stateful app hits storage limits. Simplyblock ensures volumes and replicas stay responsive during deployments, syncs, and rollbacks.
6. Istio
Istio is an open-source service mesh that provides traffic management, security, and observability for microservices. It simplifies the complexity of managing network traffic between services in a Kubernetes cluster. Istio helps ensure that your applications are secure, reliable, and easy to monitor.
7. Fluentd
Fluentd is a versatile log management tool that helps you collect, process, and analyze logs from various sources within your Kubernetes cluster. With Fluentd, you can unify your log data into a single source and easily route it to multiple destinations, making it easier to monitor and troubleshoot your applications.
Logs grow fast. Simplyblock keeps hot logs on NVMe and tiers cold ones to S3, so storage never becomes the bottleneck.
8. Velero
Velero is a backup and recovery solution for Kubernetes clusters. It allows you to back up your cluster resources and persistent volumes, restore them when needed, and even migrate resources between clusters. Velero is an essential tool for disaster recovery planning in Kubernetes environments.
Backup is only useful if recovery is fast. Simplyblock adds consistent snapshots and S3 log streaming to speed up disaster recovery.
9. Kubeapps
Kubeapps is a web-based UI for deploying and managing applications on Kubernetes. It provides a simple and intuitive interface for browsing Helm charts, managing your applications, and even configuring role-based access control (RBAC). Kubeapps makes it easier for developers and operators to work with Kubernetes applications.

Why Choose simplyblock for Kubernetes?
While Kubernetes excels at container orchestration, managing persistent storage for stateful workloads remains challenging. This is where simplyblock’s intelligent storage optimization creates unique value:
- Kubernetes-Native Storage Orchestration: Simplyblock seamlessly integrates with Kubernetes through its CSI driver, providing intelligent storage management for stateful workloads. Unlike traditional storage solutions, simplyblock’s thin provisioning and storage pooling enable dynamic resource allocation without over-provisioning. The platform automatically manages underlying EBS volumes, scaling storage resources based on actual usage while maintaining high performance through NVMe over TCP. This is particularly valuable for organizations running multiple databases or data-intensive applications on Kubernetes.
- Multi-Tenant Storage Management: Simplyblock enhances Kubernetes’ multi-tenant capabilities through isolated storage pools. Each namespace or tenant can receive dedicated storage resources while sharing the underlying infrastructure efficiently. The platform’s ability to provide per-volume encryption and performance characteristics ensures secure and predictable storage performance across different workloads. This architecture is especially beneficial for organizations running Database-as-a-Service or other multi-tenant applications on Kubernetes.
- Enterprise-Grade Data Protection: Simplyblock strengthens Kubernetes’ persistent storage reliability through sophisticated backup and disaster recovery features. The platform’s consistent snapshot capability ensures that backups maintain referential integrity across multiple persistent volumes, especially crucial for distributed databases and stateful applications. By leveraging S3 for disaster recovery with near-zero RPO through write-ahead logging, simplyblock provides robust data protection without compromising performance. This approach particularly benefits organizations requiring rapid recovery capabilities while maintaining strict data consistency across their Kubernetes clusters.
How to Optimize Kubernetes Storage with Open-source Tools
This guide explored nine essential open-source tools for Kubernetes, from Helm’s package management to Velero’s backup capabilities. While these tools excel at different aspects – Prometheus for monitoring, Istio for service mesh, and Argo CD for GitOps – proper implementation is crucial. Tools like Fluentd enable log management, while Kubeapps provides UI-based deployments. Each tool offers unique approaches to managing and optimizing Kubernetes deployments.
Simplyblock complements these tools by making storage smarter, more scalable, and less of a headache for every cluster you run.
If you’re looking to further streamline your Kubernetes operations, simplyblock offers comprehensive solutions that integrate seamlessly with these tools, helping you get the most out of your Kubernetes environment.
Ready to take your Kubernetes management to the next level? Contact simplyblock today to learn how we can help you simplify and enhance your Kubernetes journey.
Questions and Answers
Popular tools include Helm for deployments, ArgoCD for GitOps, Prometheus & Grafana for observability, and Crossplane for infrastructure automation. When combined with Kubernetes-native storage, these tools create a production-ready ecosystem.
Prometheus and Grafana remain the go-to tools for monitoring metrics, alerts, and visualizations. For advanced storage visibility, you can also use Simplyblock’s EBS volume usage exporter in AWS-based clusters.
Use a CSI-compatible storage platform that supports NVMe-over-TCP, snapshots, and encryption. Simplyblock provides dynamic provisioning and high performance tailored for Kubernetes-native workloads.
Yes, tools like Operators and StatefulSets enable reliable PostgreSQL, MySQL, and MariaDB deployments. Pair them with high-performance storage like Simplyblock for databases for persistent and resilient infrastructure.
Open-source tools provide flexibility, cost savings, and community-driven innovation. They integrate well with cloud-native platforms like Simplyblock, which adds enterprise-grade data-at-rest encryption and storage performance.