CoreOS vs Photon: What are the differences?

Introduction

CoreOS and Photon are both lightweight operating systems designed for containerized environments. While they have certain similarities, there are key differences that set them apart. This Markdown code will provide a specific comparison of the two operating systems, highlighting their unique features.

1. Container Runtime: CoreOS utilizes "rkt," a container runtime designed to compete with Docker. Photon, on the other hand, focuses on compatibility with Docker, making it a suitable choice for users already invested in the Docker ecosystem. This difference in container runtime can influence the way containers are deployed and managed.

2. Enterprise Support: CoreOS is known for its strong focus on enterprise support and stability. It provides additional features like rolling updates, atomic upgrades, and a managed platform for distributing updates. Although Photon also offers enterprise support, CoreOS has a more extensive set of features targeted at large-scale deployments.

3. Backed by Different Companies: CoreOS is developed and supported by Red Hat Inc., a well-established player in the Linux and open-source community. Photon, on the other hand, is backed by VMware, a prominent virtualization software provider. The choice between the two may depend on your preferred vendor or existing infrastructure.

4. Host System Requirements: CoreOS performs best on bare-metal servers, providing strong security and isolation between hosts. Photon, being part of the VMware ecosystem, excels in virtualized environments and integrates well with other VMware products. Depending on your infrastructure setup, the choice between CoreOS and Photon could impact performance and compatibility.

5. Community and Ecosystem: CoreOS has a vibrant and active community, along with a large ecosystem of tools and projects. This active community ensures regular updates, bug fixes, and a wider range of supported applications. Photon, while steadily growing its community, doesn't have the same level of maturity or the same extensive ecosystem as CoreOS.

6. Container Security Features: CoreOS emphasizes built-in security features, such as automated updates and an integrated security scanning service called "Quay." Photon also provides security features but focuses more on leveraging existing VMware security mechanisms. Depending on your security requirements, this difference could be a deciding factor.

In Summary, CoreOS and Photon differ in their container runtime, enterprise support, backing companies, host system requirements, community and ecosystem, and container security features. The choice between the two will depend on factors such as your existing infrastructure, preferred vendor, and specific needs within your containerized environment.