Firecracker

KVM-based microVM monitor with a minimal virtio device model and one jailed process per microVM.

Provider: default
Kind: Virtual machine
Category: Compute
Official docs: https://github.com/firecracker-microvm/firecracker/blob/main/docs/design.md

Properties · 2 set by this component

property	type	values	required	kind default	this component
deviceModel · component property	enum	minimal-virtio	no	minimal-virtio	inherited
diskEncryption	boolean	—	no	—	inherited
instances	integer	—	no	—	inherited
jailer · component property	boolean	—	no	true	inherited
managed	boolean	—	no	false	▸ false
memoryGib	integer	—	no	—	inherited
os	enum	linux \| windows \| aix \| ibm-i	no	linux	▸ linux
processPerMicrovm · component property	boolean	—	no	true	inherited
publicIp	boolean	—	no	—	inherited
sizeVcpu	integer	—	no	—	inherited
snapshotting · component property	boolean	—	no	false	inherited
zoneRedundant	boolean	—	no	—	inherited

Rules that apply · 1

Every rule whose selector covers this component's kind or its category. Whether a rule fires depends on the design: its properties, its edges and its groups.

Stateful node without zone redundancyerror

stateful-node-without-zone-redundancy

A stateful compute node pinned to exactly one availability zone disappears with that zone, and its state goes with it. Nodes inside a cell are exempt, because there the cell is deliberately single-zone and redundancy comes from the other cells.

— all of these hold:
— the node's `stateless` is false
— the node sits inside exactly 1 availability-zone group
— this does not hold:
— the node sits inside at least one cell group

Use it in a design

nodes:
  - { id: "firecracker", component: "firecracker" }

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and 20 more → Virtual machine page

Source

1# yaml-language-server: $schema=../../schema/component.schema.json
2# Firecracker, an open source microVM monitor built on KVM. Per "Firecracker Design" one process holds
3# exactly one microVM with API, VMM and vCPU threads, the device model is limited to virtio-net,
4# virtio-block, a serial console and a partial i8042, and production use requires the jailer, which drops
5# privileges behind seccomp filters, cgroups and namespaces.
6schemaVersion: "1"
7type: "component"
8id: "firecracker"
9kind: "virtual-machine"
10provider: "default"
11docs: "https://github.com/firecracker-microvm/firecracker/blob/main/docs/design.md"
12defaults:
13  managed: false
14  os: "linux"
15properties:
16  jailer:
17    type: "boolean"
18    default: true
19  processPerMicrovm:
20    type: "boolean"
21    default: true
22  deviceModel:
23    type: "enum"
24    values: ["minimal-virtio"]
25    default: "minimal-virtio"
26  snapshotting:
27    type: "boolean"
28    default: false

The same page as markdown, for an agent: /catalogue/components/firecracker.md