nmstate operator was deployed to configure IPSec transport tunnel

Following are rpm versions

sh-5.1# rpm -qa | grep -i "nmst\|libre"
libref_array-0.1.5-53.el9.x86_64
libreport-filesystem-2.15.2-6.el9.noarch
librepo-1.14.5-1.el9.x86_64
nmstate-2.2.23-1.el9_2.x86_64
libreswan-4.9-4.el9_2.x86_64
NetworkManager-libreswan-1.2.14-3.el9_2.x86_64

4.15.0-0.nightly-2024-01-24-103216    

    Always

    1.Enable IPSec mode Full on OCP
    2.Deploy nmstate operator
    2.Create nncp object for ipsec policy

[anusaxen@anusaxen ~]$ cat try.yaml 
kind: NodeNetworkConfigurationPolicy
apiVersion: nmstate.io/v1
metadata:
  name: "ipsec-policy1"
spec:
  nodeSelector:
    kubernetes.io/hostname: "ipsec-testpr65-8b2sk-worker-b-wlrwt"
  desiredState:
    interfaces:
    - name: pluto-VM 
      type: ipsec
      libreswan:
        left: 10.0.128.2
        leftid: '%fromcert'
        leftmodecfgclient: no
        leftrsasigkey: '%cert'
        leftcert: "10_0_128_2"
        right: 10.0.0.2
        rightid: '%fromcert'
        rightrsasigkey: '%cert'
        rightsubnet: 10.0.0.2/32
        ikev2: insist
        type: transport


    3. $ oc get nncp
NAME            STATUS      REASON
ipsec-policy1   Available   SuccessfullyConfigured


    4. oc debug on node and check ipsec status (tunnel up)
       
    000 #30: "2db7541a-0a33-4373-8a85-f64b796ff02a":500 STATE_V2_ESTABLISHED_IKE_SA (established IKE SA); REKEY in 27197s; REPLACE in 28217s; newest; idle;
000 #31: "2db7541a-0a33-4373-8a85-f64b796ff02a":500 STATE_V2_ESTABLISHED_CHILD_SA (established Child SA); REKEY in 27208s; REPLACE in 28217s; newest; eroute owner; IKE SA #30; idle;
000 #31: "2db7541a-0a33-4373-8a85-f64b796ff02a" esp.d7d3cac0@10.0.0.2 esp.3edc1329@10.0.128.2 Traffic: ESPin=64B ESPout=64B ESPmax=2^63B 

   5. oc delete nncp ipsec-policy1
   6. above tunnel IPSec SA remains up and traffic continues to be encrypted      

    Tunnel is not terminated post nncp object deletion

     Tunnel should be  terminated post nncp object deletion

    restarting ipsec.service terminates the tunnel