Mirantis Container Cloud (MCC) becomes part of Mirantis OpenStack for Kubernetes (MOSK)!
Starting with MOSK 25.2, the MOSK documentation set will cover all product layers, including MOSK management (formerly MCC). This means everything you need will be in one place. The separate MCC documentation site will be retired, so please update your bookmarks for continued easy access to the latest content.
Wireguard known issues¶
This section lists the Wireguard known issues with workarounds for the Mirantis OpenStack for Kubernetes release 23.2.
[35147] The Wireguard interface does not have the IPv4 address assigned¶
Due to the upstream Calico issue, on clusters with Wireguard enabled, the Wireguard interface on a node may not have the IPv4 address assigned. This leads to broken inter-Pod communication between the affected node and other cluster nodes.
The node is affected if the IP address is missing on the Wireguard interface:
ip a show wireguard.cali
Example of system response:
40: wireguard.cali: <POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1440 qdisc noqueue state UNKNOWN group default qlen 1000 link/none
The workaround is to manually restart the calico-node Pod to allocate
the IPv4 address on the Wireguard interface:
docker restart $(docker ps -f "label=name=Calico node" -q)