Slicer is a tool from OpenFaaS Ltd that partitions bare-metal hosts into Firecracker microVMs in roughly 1-2 seconds. Originally an internal tool used since 2022, it is now being released as a public preview (Home Edition). Key capabilities include fast VM creation/deletion (~1s boot), persistent disk support, Serial Over SSH console, GPU mounting via VFIO, multi-host support, and integration with Kubernetes Cluster Autoscaler. It pairs with K3sup Pro to spin up HA K3s clusters in minutes. Slicer is positioned as the easiest way to work with Firecracker, compared to alternatives like LXD, QEMU/libvirt, Proxmox, and kubevirt. The Home Edition is available to GitHub sponsors at $25/month and is licensed for personal/non-commercial use only.
Table of contents
What is a preview?Enough talking, I just want to see it runningStacking value - autoscaling Kubernetes - on your own hardwareEverything you get for the price of a coffeeQuick and dirty installation of SlicerAny colour you want, so long as it's blackA quick template for a VMRunning Slicer as a daemonHow do I customise the image or setup userdata?How does Slicer compare to other tools I already know?Wrapping upSort: