k0s vs Seabird

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.

Seabird is a desktop Kubernetes IDE for exploring and managing clusters on Linux, macOS, and Windows. It brings logs and metrics into a graphical interface, including memory and CPU utilization for nodes, pods, and containers through Metrics Server integration. A native terminal runs commands in containers, and the manifest editor keeps the API reference available while authoring. Users can forward a container port to localhost with a button. Credential plugins can add authentication protocols the Kubernetes client does not support natively; those plugins must be installed on the system PATH. The project describes Seabird as designed for the GNOME desktop, recommends Flatpak on Linux, and makes downloads available through its releases. The Flatpak can access files only in the home directory unless system-directory access is granted with Flatseal. Seabird is released under the Mozilla Public License v2, and its source code is available for audit. It is paid, has no free plan, and offers an unlimited free trial.