MOSK

Communications between Mirantis OpenStack for Kubernetes (MOSK) components are provided by the Calico networking. All internal communications occur through the Calico tunnel through the VXLAN or WireGuard protocols.

Note

Since Container Cloud 2.29.0 (Cluster releases 17.4.0 and 16.4.0), WireGuard is deprecated. If you still require the feature, contact Mirantis support for further information.

Caution

These ports are only used for in-cluster communications. Open them only to a trusted network and never at a perimeter firewall.

Component

Protocol

Port

Description

Calico VXLAN

UDP

4792

Calico networking with VXLAN enabled

Calico WireGuard

UPD

51820

Calico networking with IPv4 Wireguard enabled

In-cluster communications between MetalLB speaker components are done using the LCM network. MetalLB components also provide metrics to be collected by StackLight.

Caution

These ports are only used for in-cluster communications. Open them only to a trusted network and never at a perimeter firewall.

Component

Protocol

Port

Description

MetalLB MemberList

TCP/UDP

7947

MetalLB speaker communications using MemberList

MetalLB metrics

TCP

7472

MetalLB controller & speaker metrics