We want to use CNIs from OpenShift's container-network-plugins container image because the releases are synced compared to RHEL having different schedule.

Therefore we need to configure CRI-O to first select CNIs we'll provide over CNIs from containernetwork-plugins RPM (/usr/libexec/cni), but not remove that path entirely so CRI-O can still access its default network plugins.

Relevant CRI-O log:

level=warning msg="Error validating CNI config file /etc/cni/net.d/100-crio-bridge.conflist: [failed to find plugin \"bridge\" in path [/opt/cni/bin]]"

level=warning msg="Error validating CNI config file /etc/cni/net.d/200-loopback.conflist: [failed to find plugin \"loopback\" in path [/opt/cni/bin]]"