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interop-matrix.md

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Flatcar inter-operation matrix

This document tracks Flatcar inter-operability across environments.

Ownership of an item implies ensuring test coverage in release tests of official Flatcar releases (L2 and above) as well as handling bugs and feature requests that affect the respective environment specifically. Please propose ownership by filing a PR for this document.

Public cloud (machines)

Environment Full-Feature (release blocker) Works Tested (CI) Owner Reference (e.g. GH issue) Notes
EC2 Partial X X @flatcar/flatcar-maintainers IAM 2.0 support missing
Azure Partial X X @flatcar/flatcar-maintainers HyperV telemetry support missing; needs tracking issue
GCE X X X @flatcar/flatcar-maintainers
Digital Ocean (VMs) X X X @flatcar/flatcar-maintainers
Equinix Metal X X X @flatcar/flatcar-maintainers
ESXi / vSphere X X X @flatcar/flatcar-maintainers
Hetzner Cloud X [no owner]
Vultr VPS X [no owner]
Cloudscale X [no owner]
Oracle Cloud X [no owner] Bring-your-own-image on OCI VMs; install via Ubuntu on OCI bare metal
Tencent [no owner]
AliCloud [no owner]
Yandex [no owner]
Brightbox X X X @flatcar/flatcar-maintainers

Private Cloud (machines)

Environment Full-Feature (release blocker) Works Tested (CI) Owner Reference (e.g. GH issue) Notes
Azure Stack w/ caveat [no owner] controller node not supported on Flatcar (cloud-init feature missing)
Tinkerbell X [no owner]
Rancher (VMs) X [no owner]
QEmu / KVM backed X X X @flatcar/flatcar-maintainers
OpenStack X X X @flatcar/flatcar-maintainers
VirtualBox X [no owner]
Vagrant X [no owner] Isn't this plain qemu/kvm?

Managed Kubernetes

Environment Full-Feature (release blocker) Works Tested (CI) Owner Reference (e.g. GH issue) Notes
EKS X [no owner]
GiantSwarm X Provider

Cluster API

Environment Full-Feature (release blocker) Works Tested (CI) Owner Reference (e.g. GH issue) Notes
CAPB X X X (upstream) Upstream Covered by CAPB release tests
CAPA X X X (upstream) Upstream Covered by CAPA release tests
CAPA EKS [no owner]
CAPZ w/ caveat @flatcar/flatcar-maintainers WIP Prototype
CAPV [no owner]
CAPM3 [no owner]
CAPG [no owner]
CAPO X X (upstream) Upstream

Kubernetes Distros

Environment Full-Feature (release blocker) Works Tested (CI) Owner Reference (e.g. GH issue) Notes
AKS Engine X [no owner] https://kinvolk.io/blog/2020/12/supercharging-aks-engine-with-flatcar-container-linux/
Rancher (rke) X [no owner]
Rancher (rke2) [no owner]
Lokomotive X X X @kinvolk/lokomotive-developers
Tanzu KG X [no owner]
K3s X [no owner]
EKS-Distro X [no owner]
KOPS X upstream
Kubematic X [no owner]
Gardener X [no owner]

Other

Please add below what does not fit into any of the categories above.

Environment Full-Feature (release blocker) Works Tested (CI) Owner Reference (e.g. GH issue) Notes