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k3s VS OpenShift

Compare k3s VS OpenShift and see what are their differences

k3s logo k3s

K3s is a lightweight Kubernetes distribution by Rancher Labs intended for IoT, Edge, and cloud deployments.

OpenShift logo OpenShift

OpenShift gives you all the tools you need to develop, host and scale your apps in the public or private cloud. Get started today.
  • k3s Landing page
    Landing page //
    2022-11-09
  • OpenShift Landing page
    Landing page //
    2023-10-15

k3s features and specs

  • Lightweight
    K3s is designed to be lightweight and less resource-intensive compared to full Kubernetes distributions, making it ideal for edge and IoT devices, as well as development environments.
  • Easy Installation
    K3s provides a simple installation process, requiring only a single binary for installation, which simplifies the setup procedure for users.
  • Low Resource Usage
    By stripping away non-essential features, K3s consumes significantly fewer resources, lowering the barrier to entry for running Kubernetes on resource-constrained environments.
  • Fully CNCF Conformant
    K3s is certified by the Cloud Native Computing Foundation (CNCF) as conformant with standard Kubernetes, meaning it follows the same API and operational model.
  • Built-In Database
    K3s includes an embedded SQLite database by default, which simplifies deployment and reduces the complexity associated with managing an external etcd cluster.
  • Automated TLS Management
    K3s has integrated support for TLS certificates management, which helps in ensuring secure communications between components without additional configuration.
  • Ecosystem Compatibility
    K3s supports popular Kubernetes add-ons and CI/CD tools, so it can be seamlessly integrated into existing Kubernetes-based workflows.

Possible disadvantages of k3s

  • Reduced Feature Set
    To keep K3s lightweight, some non-essential Kubernetes features and components are omitted or replaced, which might limit functionality for more advanced use cases.
  • Lack of Scalability
    K3s is optimized for smaller clusters and edge environments, so it may not scale as efficiently as standard Kubernetes distributions in large, enterprise-level deployments.
  • Embedded SQLite Limitations
    While the built-in SQLite database simplifies initial setup, it may not handle high write loads or offer the same reliability and performance as an external etcd cluster for production environments.
  • Community and Enterprise Support
    Although supported by the Kubernetes community, K3s may have less enterprise-grade support and fewer educational resources compared to other full-featured Kubernetes distributions.
  • Ecosystem Integration
    Certain Kubernetes tools or cloud services optimized for full Kubernetes distributions may not work seamlessly with K3s, requiring custom configurations or workarounds.
  • Limited Networking Options
    K3s might have fewer networking configuration options compared to full-featured Kubernetes implementations, potentially restricting advanced network setup.
  • Simplified Security Model
    K3s implements a simplified security model which might lack some advanced security features and policies found in the standard Kubernetes distribution.

OpenShift features and specs

  • Comprehensive Platform
    OpenShift provides a complete Kubernetes-based container platform, including a strong set of integrated tools such as CI/CD pipelines, monitoring, and logging, which simplifies the development and deployment of applications.
  • Hybrid and Multi-Cloud Support
    OpenShift supports hybrid and multi-cloud deployments, enabling organizations to build, deploy, and manage applications across on-premises infrastructure and multiple cloud providers.
  • Enterprise-grade Security
    It offers robust security features, including role-based access control (RBAC), built-in authentication and authorization, and integrated vulnerability scanning, ensuring secure application development and deployment.
  • Developer Productivity
    OpenShift boosts developer productivity with features like source-to-image (S2I) builds, self-service environments, and a rich catalog of pre-configured application templates and runtimes.
  • Scalability and High Availability
    It is designed to scale applications seamlessly and ensure high availability with automated horizontal pod scaling, load balancing, and failover capabilities.

Possible disadvantages of OpenShift

  • Complexity
    The comprehensive nature of OpenShift can lead to increased complexity, particularly for small teams or organizations without prior Kubernetes or container orchestration experience.
  • Cost
    Enterprise-grade features come with significant licensing costs, which might be a barrier for startups and small to medium-sized enterprises.
  • Learning Curve
    Due to its extensive range of features and integrations, there can be a steep learning curve for administrators and developers new to the platform.
  • Vendor Lock-in
    While OpenShift supports hybrid and multi-cloud environments, there can be concerns about vendor lock-in due to the level of customization and proprietary features specific to Red Hat's implementation.
  • Resource Intensive
    Running OpenShift efficiently requires substantial computational resources and infrastructure, which might be challenging for organizations with limited IT resources.

Analysis of OpenShift

Overall verdict

  • OpenShift is considered a good choice, especially for enterprises looking for a robust, scalable, and secure platform for deploying applications at scale. Its integration of Kubernetes with additional developer tools makes it an excellent option for facilitating DevOps practices.

Why this product is good

  • OpenShift is a solid platform as it combines containers and Kubernetes with developer-centric tools to accelerate application development and deployment. It offers built-in CI/CD, security features, and extensive scalability options. The platform ensures consistency across hybrid environments, which simplifies the management of containerized applications.

Recommended for

  • Organizations seeking a comprehensive platform for container orchestration.
  • Development teams focused on improving their CI/CD pipelines.
  • Enterprises adopting hybrid or multi-cloud strategies.
  • Teams that require robust security and compliance features.
  • Businesses aiming for rapid application development and deployment.

k3s videos

Siroko K3s Sun Glasses Unboxing and Review | Big Muscle Gains

More videos:

  • Review - Elecraft K3S Transceiver Review

OpenShift videos

OpenShift Container Platform by RedHat | Kubernetes Made Easy | Tech Primers

More videos:

  • Review - Open Source PaaS - OpenShift Review Part 1
  • Review - Red Hat OpenShift overview

Category Popularity

0-100% (relative to k3s and OpenShift)
Developer Tools
65 65%
35% 35
Cloud Computing
43 43%
57% 57
Cloud Hosting
0 0%
100% 100
DevOps Tools
100 100%
0% 0

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare k3s and OpenShift

k3s Reviews

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OpenShift Reviews

Kubernetes Alternatives 2023: Top 8 Container Orchestration Tools
OpenShift is another container orchestration alternative for Kubernetes. It is a PaaS developed by Red Hat as a hybrid, enterprise-scale platform with extended Kubernetes capabilities for container orchestration. With a Linux OS, OpenShift helps you securely automate and scale the entire lifecycle of containerized applications. That means you can virtualize every host and...
OpenShift alternatives
The OpenShift platform was released by Red Hat โ€“ the maker of the professional Linux distribution โ€œRed Hat Enterprise Linuxโ€ (RHEL). The OpenShift alternative โ€œRancherโ€ has now been taken over by the traditional Linux provider SUSE. โ€œCanonical Kubernetesโ€, is another OpenShift alternative from an established Linux provider. Read on to find out more about these and other...
Source: www.ionos.com

Social recommendations and mentions

Based on our record, k3s seems to be more popular. It has been mentiond 189 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

k3s mentions (189)

  • Rebuilding My Homelab with Compose, Ruby, IPv6, and No Kubernetes
    Agreed, personally I'd only do it through a hosted provider or maybe consider https://k3s.io for a bit simpler setup. I'd also only do it if Kubernetes is something I'm already familiar with. - Source: Hacker News / 6 days ago
  • Postgres rewritten in Rust, now passing 100% of the Postgres regression tests
    > but it's still a singleton instance, so where do you run it? Most hardware doesn't give you enough uptime for what you need here, because what you actually needed was a re-architecture for distribution / failover / whatever, and while you could ask your LLM to do that you aren't going to run your bank on the result. If only we had a way to solve these issues with tools capable of running Rust programs in that... - Source: Hacker News / 8 days ago
  • TimescaleDB compresses time-series data
    At StackGres [1] we find Timescale to be one of the most used extensions. Timescale is quite a successful project! StackGres is actually the first solution recommended by Timescale for self-hosting with Kubernetes operators [2]. So if you are into Kubernetes (or if not, consider it, using something like K3s [3] is quite straightforward and lightweight on resources), this is probably a great option to self-host... - Source: Hacker News / about 1 month ago
  • Kubernetes testing w/ Dagger.io
    What we need is a way to bootstrap a Kubernetes Cluster itself. Being in a docker-like environment the best option is a Kubernetes in Docker solution, Such as KinD or K3s. Both are available in Daggerverse and can be installed as external module to be reused. - Source: dev.to / 2 months ago
  • How I Cut Our GitHub Actions Pipeline Time by More Than 50%
    Before landing on the base image approach, my first assumption was that the Kubernetes cluster setup was the bottleneck - we use kind to run dependencies like PostgreSQL and NATS. I replaced kind with k3s. It saved 1โ€“2 minutes, but nothing significant on its own. - Source: dev.to / 4 months ago
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OpenShift mentions (0)

We have not tracked any mentions of OpenShift yet. Tracking of OpenShift recommendations started around Mar 2021.

What are some alternatives?

When comparing k3s and OpenShift, you can also consider the following products

Kubernetes - Kubernetes is an open source orchestration system for Docker containers

Google App Engine - A powerful platform to build web and mobile apps that scale automatically.

Kind - Kind is a web-based tool that provides you the features to operate the local kubernetes clusters with the help of a docker container named nodes.

Salesforce Platform - Salesforce Platform is a comprehensive PaaS solution that paves the way for the developers to test, build, and mitigate the issues in the cloud application before the final deployment.

k3sup - from Zero to KUBECONFIG in < 1 min ๐Ÿš€. Contribute to alexellis/k3sup development by creating an account on GitHub.

Dokku - Docker powered mini-Heroku in around 100 lines of Bash