k0s vs Kubus

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.

Kubus is a free, open-source Kubernetes GUI that runs locally and brings cluster resources, logs, shells, port forwards, metrics, and Helm into one desktop app. It can combine selected kubeconfig contexts in merged lists, with a cluster column identifying each resource's context. Alongside built-in Kubernetes resource types, it discovers custom resource definitions live. For troubleshooting, Kubus streams logs from multiple pods and provides container terminals, ephemeral debug containers, and node shells. Users can browse, install, upgrade, roll back, and uninstall Helm releases without the Helm binary. Kubus uses existing kubeconfig credentials and supports GKE, EKS, and AKS through their credential plugins; connections can also use SSH jump hosts or SOCKS and HTTP proxies. The local server binds to 127.0.0.1, and the maker says there is no cloud, account, or telemetry; Secret values are redacted by default. It is available on Windows, macOS, and Linux, though new releases no longer support Intel Macs. Metrics and health charts require metrics-server in the cluster.