Headlamp vs k0s

Headlamp is a free graphical interface for managing Kubernetes clusters, available as a browser-based application and a desktop app. It adjusts its controls to Kubernetes role-based permissions, so users see only actions their role allows. Users can monitor multiple clusters and switch between them in the interface. A plugin system extends core functionality for specific workflows, with integrations including Backstage, Flux, Inspektor Gadget, Kompose, Kubescape, KubeVirt, OpenCost, Prometheus, and Trivy. Headlamp can be deployed in a Kubernetes cluster using Helm or YAML configuration. Documented sign-in methods include client certificates, bearer tokens, and OIDC. The project says a user token may be stored in browser local storage, but not in its backend or server. Its plugin guidance warns that plugins share the main application’s JavaScript context and recommends installing only trusted plugins. Headlamp is available at no charge under Apache 2.0. The project says it tests its desktop app on Windows, macOS, and Linux. Support options include documentation, community Slack, GitHub issues, and monthly community meetings.

k0s is a free, self-hosted Kubernetes distribution for deploying workloads across public and private clouds, on-premises systems, bare metal, edge locations, and IoT environments. It comes as a single binary and needs no host operating-system components beyond the kernel. The project describes it as CNCF-certified Kubernetes and lists support for x86-64, ARM64, ARMv7, and RISC-V. Installation options include single-node, multi-node, air-gapped, and Docker methods. The k0sctl tool supports cluster lifecycle tasks such as upgrades and backup and restore. Kube-Router is the default networking option; custom CNI plugins are supported, with Calico listed as a preconfigured alternative. Datastore choices include etcd, SQLite, MySQL, and PostgreSQL. Listed security features include kube-bench, RBAC, network policies, control plane isolation, and OpenID provider support. Minimum requirements are 1 vCPU and 1 GB RAM. The project aims to keep the base versatile by limiting bundled add-ons such as ingress, service meshes, and storage. Mirantis offers support services and subscriptions.