Lightweight Kubernetes

What it does

Rancher Labs introduced k3s, a new open source project which is a lightweight implementation of Kubernetes that is easy to install and can run on x86 and ARM infrastructure with only 512 MB of RAM required to run it.

K3s is a highly available, certified Kubernetes distribution designed for production workloads in unattended, resource-constrained, remote locations or inside IoT appliances. K3s is packaged as a single <70MB binary that reduces the dependencies and steps needed to install, run and auto-update a production Kubernetes cluster. Both ARM64 and ARMv7 are supported with binaries and multiarch images available for both. K3s works great on something as small as a Raspberry Pi to an AWS a1.4xlarge 32GiB server. The above figure shows the difference between K3s server and K3s agent nodes. For more information, see the architecturefrom k3s.io

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