Hosting Variants Features Matrix

Linux Host

Experimental

Linux host support is experimental. Some features may be incomplete or change without notice.

On a Linux host the control plane runs natively (no VM). An optional Windows VM is provisioned via libvirt/KVM for mixed-OS workloads. Networking uses standard Linux routing and iptables — L2Bridge, DNSProxy, VFPRules are Windows-specific components and are not used.

L2Bridge

Creation of L2Bridge is essential for communication between Pods across Linux and Windows nodes. In principle, a network adapter named cbr0 is created to facilitate communication across nodes.

DNSProxy

Acts as internal DNS server on Windows node. Status can be checked with cmd nssm status dnsproxy.

HttpProxy

Internal proxy running on Windows node. Status can be checked with cmd nssm status httpproxy.

In order to access resources on the internet the following proxy settings need to be used:

Host: Proxy http://172.19.1.1:8181 needs to be used inside Linux Pods and Windows Pods. The Linux node needs the proxy as well.
Linux-only: No proxy needs to be used. Internet access is possible through NAT.

Example

Bash Session

curl www.example.com --proxy http://172.19.1.1:8181

VFPRules

Dynamic rules added in cbr0 switch for Windows containers networking.

Hosting Variant	Host OS	L2Bridge	DNSProxy	HttpProxy	VFPRules
Host	Windows	✔	✔	✔	✔
Development-Only	Windows	✘	✘	✔	✘
Linux-only	Windows	✘	✘	✘	✘
Host (WSL)	Windows	✔	✔	✔	✔
Development-Only (WSL)	Windows	✘	✘	✔	✘
Linux-only (WSL)	Windows	not supported	not supported	not supported	not supported
Linux Host (experimental)	Linux	✘	✘	✘	✘