kube-vip: make BGP source configurable #12840
Description
What would you like to be added
kube-vip allows specifying bgp_sourceip or (mutually exclusive) bgp_sourceif to control which iface/addr to use to establish BGP sessions. Those settings are not exposed as kubespray variables and there is no generic kubespray variable allowing the extension of environment variables.
Why is this needed
This is needed in complex setups with multiple interfaces and/or addresses where source IP selection MUST be configurable. For example, when using different IPs to avoid BGP Connection Collision on nodes running multiple BGP speakers.