Fix Fedora CI following ipset version in kube-proxy for k8s 1.23 (#8397)

tests/files/packet_fedora34-calico-selinux.yml

@@ -5,6 +5,10 @@ mode: default
 
 # Kubespray settings
 auto_renew_certificates: true
+# Switching to iptable due to https://github.com/projectcalico/calico/issues/5011
+# Kubernetes v1.23.0 kube-proxy does use v.7.x now. Calico v3.20.x/v3.21.x Pods show the following error
+# Bad return code from 'ipset list'. error=exit status 1 family="inet" stderr="ipset v7.1: Kernel and userspace incompatible: settype hash:ip,port with revision 6 not supported by userspace.
+kube_proxy_mode: iptables
 
 # Test with SELinux in enforcing mode
 preinstall_selinux_state: enforcing

tests/files/packet_fedora35-docker-calico.yml

@@ -5,6 +5,10 @@ mode: default
 
 # Kubespray settings
 auto_renew_certificates: true
+# Switching to iptable due to https://github.com/projectcalico/calico/issues/5011
+# Kubernetes v1.23.0 kube-proxy does use v.7.x now. Calico v3.20.x/v3.21.x Pods show the following error
+# Bad return code from 'ipset list'. error=exit status 1 family="inet" stderr="ipset v7.1: Kernel and userspace incompatible: settype hash:ip,port with revision 6 not supported by userspace.
+kube_proxy_mode: iptables
 
 # Docker specific settings:
 container_manager: docker