CoreOS rkt / Container Linux (project ended) vs. Kubernetes

Overview
ProductRatingMost Used ByProduct SummaryStarting Price
CoreOS rkt / Container Linux (project ended)
Score 7.0 out of 10
N/A
CoreOS rkt or Container Linux was a rival to Docker that was acquired by Red Hat, then given to the Cloud Native Computing Foundation (CNCF). The project has since been discontinued.N/A
Kubernetes
Score 8.9 out of 10
N/A
Kubernetes is an open-source container cluster manager.N/A
Pricing
CoreOS rkt / Container Linux (project ended)Kubernetes
Editions & Modules
No answers on this topic
No answers on this topic
Offerings
Pricing Offerings
CoreOS rkt / Container Linux (project ended)Kubernetes
Free Trial
NoNo
Free/Freemium Version
NoNo
Premium Consulting/Integration Services
NoNo
Entry-level Setup FeeNo setup feeNo setup fee
Additional Details
More Pricing Information
Community Pulse
CoreOS rkt / Container Linux (project ended)Kubernetes
Features
CoreOS rkt / Container Linux (project ended)Kubernetes
Container Management
Comparison of Container Management features of Product A and Product B
CoreOS rkt / Container Linux (project ended)
-
Ratings
Kubernetes
8.9
4 Ratings
11% above category average
Security and Isolation00 Ratings9.04 Ratings
Container Orchestration00 Ratings9.64 Ratings
Cluster Management00 Ratings9.74 Ratings
Storage Management00 Ratings8.04 Ratings
Resource Allocation and Optimization00 Ratings8.34 Ratings
Discovery Tools00 Ratings8.94 Ratings
Update Rollouts and Rollbacks00 Ratings8.94 Ratings
Self-Healing and Recovery00 Ratings9.03 Ratings
Analytics, Monitoring, and Logging00 Ratings8.74 Ratings
Best Alternatives
CoreOS rkt / Container Linux (project ended)Kubernetes
Small Businesses
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Score 9.4 out of 10
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Score 9.4 out of 10
Medium-sized Companies
Red Hat OpenShift
Red Hat OpenShift
Score 9.2 out of 10
Red Hat OpenShift
Red Hat OpenShift
Score 9.2 out of 10
Enterprises
Red Hat OpenShift
Red Hat OpenShift
Score 9.2 out of 10
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Score 9.2 out of 10
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User Ratings
CoreOS rkt / Container Linux (project ended)Kubernetes
Likelihood to Recommend
7.0
(2 ratings)
8.7
(19 ratings)
Likelihood to Renew
-
(0 ratings)
10.0
(1 ratings)
Usability
-
(0 ratings)
8.7
(3 ratings)
User Testimonials
CoreOS rkt / Container Linux (project ended)Kubernetes
Likelihood to Recommend
Open Source
CoreOS rkt is well suited for any development environment where operating systems and hardware are not homogeneous. CoreOS rkt allows us to write code on one machine with the confidence that it will work on any other. This has been immensely helpful as our developers are often switching to the latest and greatest machines and operating systems. CoreOS rkt is less suited for environments that are not Software as a Service. There is often no need to bring the entire developer environment and associated dependencies when delivering a one time product. In these environments CoreOS rkt just adds unneeded overhead.
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Kubernetes
K8s should be avoided - If your application works well without being converted into microservices-based architecture & fits correctly in a VM, needs less scaling, have a fixed traffic pattern then it is better to keep away from Kubernetes. Otherwise, the operational challenges & technical expertise will add a lot to the OPEX. Also, if you're the one who thinks that containers consume fewer resources as compared to VMs then this is not true. As soon as you convert your application to a microservice-based architecture, a lot of components will add up, shooting your resource consumption even higher than VMs so, please beware. Kubernetes is a good choice - When the application needs quick scaling, is already in microservice-based architecture, has no fixed traffic pattern, most of the employees already have desired skills.
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Pros
Open Source
  • Running a secure container without messing up with low-level details
  • Very clear and straightforward approach to building a container
  • A way to go for new projects thinking of containers
  • Comprehensive and well-written documentation compatible with UNIX keep it simple way of thinking
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Kubernetes
  • Complex cluster management can be done with simple commands with strong authentication and authorization schemes
  • Exhaustive documentation and open community smoothens the learning process
  • As a user a few concepts like pod, deployment and service are sufficient to go a long way
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Cons
Open Source
  • Market share, it's often very difficult to find new talent who use CoreOS rkt.
  • Lack of wow features, CoreOS rkt doesn't necessarily offer any immediate advantages over other container solutions.
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Kubernetes
  • Local development, Kubernetes does tend to be a bit complicated and unnecessary in environments where all development is done locally.
  • The need for add-ons, Helm is almost required when running Kubernetes. This brings a whole new tool to manage and learn before a developer can really start to use Kubernetes effectively.
  • Finicy configmap schemes. Kubernetes configmaps often have environment breaking hangups. The fail safes surrounding configmaps are sadly lacking.
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Likelihood to Renew
Open Source
No answers on this topic
Kubernetes
The Kubernetes is going to be highly likely renewed as the technologies that will be placed on top of it are long term as of planning. There shouldn't be any last minute changes in the adoption and I do not anticipate sudden change of the core underlying technology. It is just that the slow process of technology adoption that makes it hard to switch to something else.
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Usability
Open Source
No answers on this topic
Kubernetes
It is an eminently usable platform. However, its popularity is overshadowed by its complexity. To properly leverage the capabilities and possibilities of Kubernetes as a platform, you need to have excellent understanding of your use case, even better understanding of whether you even need Kubernetes, and if yes - be ready to invest in good engineering support for the platform itself
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Alternatives Considered
Open Source
Docker, lxc, Ubuntu Snappy, partisan chroot+unshare Reformulating the problem and realizing a container is not necessary when a testing environment with clearly defined behavior.
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Kubernetes
Most of the required features for any orchestration tool or framework, which is provided by Kubernetes. After understanding all modules and features of the K8S, it is the best fit for us as compared with others out there.
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Return on Investment
Open Source
  • Developers spend less time configuring and more time coding.
  • Less time training developers as CoreOS rkt lets them use whatever hardware and operating system they want.
  • Reduced our IT costs, solutions are containerized using CoreOS rkt meaning they can write one solution with many developers in mind.
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Kubernetes
  • Because of microservices, Kubernetes makes it easy to find the cost of each application easily.
  • Like every new technology, initially, it took more resources to educate ourselves but over a period of time, I believe it's going to be worth it.
Read full review
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