List of the Top 3 Operating Systems for DigitalOcean in 2025

Fedora CoreOS is a streamlined operating system that automatically updates and is specifically built to securely host containerized applications at scale. It is available on multiple platforms, with expectations of additional options coming soon. Fedora CoreOS (FCOS) offers three separate update streams: stable, testing, and next; while it is generally recommended to stick with the stable stream, using the testing and next streams on some instances is encouraged to provide valuable feedback. When automating Fedora CoreOS installations, interacting with stream metadata becomes necessary. Even though Fedora CoreOS supports automatic in-place updates, it is advisable to set up new machines with the most recent images available. Importantly, rather than offering a distinct installation disk, Fedora CoreOS creates instances from a universal disk image that is configured during the initial boot using Ignition. The entire operating system is based on open-source and free software principles, allowing not only cost-free usage but also the ability to share, adapt, and remix it as per your requirements. This level of customization and openness presents Fedora CoreOS as an attractive choice for developers and organizations seeking a resilient and versatile platform. Additionally, the community behind Fedora CoreOS frequently collaborates to enhance its features, further ensuring it remains aligned with modern technological needs.

The emergence of container-based infrastructure has marked a pivotal shift in the realm of technology. A Linux distribution tailored specifically for containers provides an optimal foundation for a cloud-native environment. This minimalist operating system image is designed to include only the vital tools required for running containers. By eliminating a package manager, it effectively avoids any risks associated with configuration drift. The implementation of an immutable filesystem contributes significantly to reducing various security risks. Furthermore, automated atomic updates guarantee that you receive the latest security patches and advancements in open-source technology consistently. Flatcar Container Linux is meticulously designed from the ground up to efficiently handle container workloads. It fully adopts the container philosophy by integrating only the essential components necessary for container operation. In the context of immutable infrastructure, possessing a similarly immutable Linux operating system becomes essential. With Flatcar Container Linux, the emphasis transitions from managing configurations to efficiently overseeing your infrastructure, leading to a more streamlined and secure operational landscape. This transformative approach not only enhances efficiency but also fundamentally changes how organizations oversee their cloud-native applications and services, paving the way for a more agile future in technology management.

KubeSphere functions as a distributed operating system specifically crafted for overseeing cloud-native applications, relying on Kubernetes as its foundational technology. Its design is modular, facilitating seamless incorporation of third-party applications within its ecosystem. As a distinguished multi-tenant, enterprise-grade, open-source platform for Kubernetes, KubeSphere boasts extensive automated IT operations alongside streamlined DevOps practices. The platform is equipped with an intuitive, wizard-driven web interface that enables organizations to enrich their Kubernetes setups with vital tools and capabilities essential for successful enterprise strategies. Being recognized as a CNCF-certified Kubernetes platform, it remains entirely open-source and benefits from community contributions for continuous improvement. KubeSphere is versatile, allowing deployment on existing Kubernetes clusters or Linux servers, and providing options for both online and air-gapped installations. This all-encompassing platform effectively offers a variety of features, such as DevOps support, service mesh integration, observability, application management, multi-tenancy, along with storage and network management solutions, making it an ideal choice for organizations aiming to enhance their cloud-native operations. Moreover, KubeSphere's adaptability empowers teams to customize their workflows according to specific requirements, encouraging both innovation and collaboration throughout the development lifecycle. Ultimately, this capability positions KubeSphere as a robust solution for organizations seeking to maximize their efficiency in managing cloud-native environments.