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Flatcar Container Linux is a lightweight operating system optimized for running containers. Designed for use in modern distributed infrastructure, Flatcar is automatically updated with the latest system software to reduce operational complexity associated with traditional OS management.
4.4
Overview
Flatcar Container Linux is a self-updating operating system designed for containers, making it ideal for running Kubernetes and other container platforms. It is suitable for anyone deploying containerized applications, particularly those seeking to do so securely or at scale.
Flatcar Container Linux offers several benefits over traditional Linux operating systems: Security, Reduced complexity, Automated updates.
Deploying a container-optimized OS like Flatcar is recommended by NIST in its application container security guide: "Whenever possible, organizations should use these minimalistic OSs to reduce their attack surfaces and mitigate the typical risks and hardening activities associated with general-purpose OSs."
Flatcar is free and open source, with a discussion forum for community users.
Highlights
- Deploying a container-optimized OS like Flatcar is recommended by NIST in its application container security guide
- Automatic updates deliver security and bug-fix patches without the need for patch management
- Reduce security exposure by using a minimal, immutable container OS
Details
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Delivery method
Delivery option
64-bit (Arm) Amazon Machine Image (AMI)
Latest version
Operating system
OtherLinux 4230.2.1
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Pricing
This product is available free of charge. Free subscriptions have no end date and may be canceled any time.
Additional AWS infrastructure costs may apply. Use the AWS Pricing Calculator to estimate your infrastructure costs.
Dimensions summary
The software itself is free, so you pay nothing for the operating system license. Pricing is organized entirely by the AWS EC2 instance you run it on, billed hourly. Each dimension maps to a specific ARM-based instance type and size, such as t4g, m6g, c6g, r6g, x2gd, im4gn, is4gen, g5g, and a1 families. Costs scale with instance size, from nano and medium up through metal and 16xlarge configurations. You pick the instance that fits your compute, memory, storage, or graphics needs, and your hourly charge follows that hardware choice.
Top-of-mind questions for buyers
Each dimension maps to one running EC2 instance of the named ARM type and size. You are billed per hour that instance runs. The operating system license itself costs nothing, so your hourly charge reflects the AWS compute hardware you selected, not the software.
The software license is free, so no license charge accrues whether the instance runs or is stopped. Hourly dimensions meter running time only. Stopped instances may still incur underlying AWS storage or other AWS fees, but those are separate from this listing.
Each dimension matches a specific ARM-based EC2 instance type and size. Compute-focused families like c6g suit processing work. Memory-focused r6g and x2gd suit large in-memory tasks. Storage families like im4gn and is4gen add local disk. Graphics-capable g5g adds GPU. Pick the instance that fits your workload.
www.flatcar.org
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Delivery details
64-bit (Arm) Amazon Machine Image (AMI)
Amazon Machine Image (AMI)
An AMI is a virtual image that provides the information required to launch an instance. Amazon EC2 (Elastic Compute Cloud) instances are virtual servers on which you can run your applications and workloads, offering varying combinations of CPU, memory, storage, and networking resources. You can launch as many instances from as many different AMIs as you need.
Version release notes
Additional details
Usage instructions
You can spin up single instances of Flatcar Container Linux using the instructions here: https://www.flatcar.org/docs/latest/installing/cloud/aws-ec2/
Flatcar Container Linux supports a declarative provisioning using the Config format. Learn more from https://www.flatcar.org/docs/latest/provisioning/
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Flatcar Container Linux is a lightweight operating system optimized for running containers. Designed for use in modern distributed infrastructure, Flatcar is automatically updated with the latest system software to reduce operational complexity associated with traditional OS management.
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Flatcar Container Linux is a lightweight operating system optimized for running containers. Designed for use in modern distributed infrastructure, Flatcar is automatically updated with the latest system software to reduce operational complexity associated with traditional OS management.
Flatcar Container Linux LTS is a Long Term Support edition of Flatcar Container Linux, a minimal, secure Linux distribution for Docker and Kubernetes apps. It is ideal for production container environments requiring the highest stability and security.
Customer reviews
Jatin K.
The most stable Linux Distro that can be found
Reviewed on Jun 19, 2024
Review provided by G2
What do you like best about the product?
I really love how it is optimized for stability and has improved security features. These enhancements make it more reliable and safe to use. These qualities are what I like the most because they give a smooth and secure experience. This is also super easy to use as well as implementation is super easy too. It has such a great customer support.
Overall, these improvements contribute greatly to its overall performance and user satisfaction.
Overall, these improvements contribute greatly to its overall performance and user satisfaction.
What do you dislike about the product?
I've noticed that it doesn't support many plugins and packages, which I find disappointing. The selection of software available is a bit limited, limiting what I can do with it. This lack of support and limited options are major drawbacks for me. It makes it challenging to fully utilize the system to meet all my needs.
What problems is the product solving and how is that benefiting you?
This system solved my network and connectivity issues, making it extremely helpful for debugging and logging. It meets our needs by simplifying the patching of container images. Additionally, it resolves my security and network-related concerns, enhancing overall functionality.
Outsourcing/Offshoring
Stable Linux Distro
Reviewed on Sep 08, 2023
Review provided by G2
What do you like best about the product?
This Flatcar Linux Distro is very stable and consume resources very little
What do you dislike about the product?
For now i cannot see any disadvantages of this linux distro
What problems is the product solving and how is that benefiting you?
This solves our requirements in terms of container images to easily patch
swapnil g.
Flatcar Container Linux
Reviewed on Jun 21, 2023
Review provided by G2
What do you like best about the product?
The process is running smoothly on the flatcar container Linux.
What do you dislike about the product?
Some plugins and packages are not supported.
What problems is the product solving and how is that benefiting you?
It is solving my security and network-related issues.
Swapnil G.
Flatcar Container Linux
Reviewed on Jun 20, 2023
Review provided by G2
What do you like best about the product?
It is good optimize and stable and it has enhance security, These are the best thing I like more.
What do you dislike about the product?
I found It has very limited software packages and this point I dislike.
What problems is the product solving and how is that benefiting you?
This is solving my network and connectivity problems and it is very useful for the debugging and logging and its very benefiting.
Computer Software
Good software
Reviewed on Nov 30, 2021
Review provided by G2
What do you like best about the product?
Support Azure and works with Intel E800 series
What do you dislike about the product?
Nothing, because they fix the mistakes and de beta works well
What problems is the product solving and how is that benefiting you?
The Mellanox NIC Linux driver issue introduced in the previous release was fixed