**
This bug was originally open for the service-mesh team:
https://issues.redhat.com/browse/OSSM-4551
**

Unable to perform curl request from a VM to a service running in the same service-mesh-member namespace. The same request sent from the VM's virt-launcher pod is successful.

Version:
Seen on a BM cluster (bm02-ibm) with version v4.11.5, and OpenShiftSDN CNI:

oc get clusterversion
NAME      VERSION   AVAILABLE   PROGRESSING   SINCE   STATUS
version   4.11.45   True        False         38h     Cluster version is 4.11.45

oc get csv -A | grep Virtualization
openshift-cnv                                      kubevirt-hyperconverged-operator.v4.11.5          OpenShift Virtualization                         4.11.5                    kubevirt-hyperconverged-operator.v4.11.4   Succeeded

oc get csv -n istio-system       
NAME                                       DISPLAY                                          VERSION                   REPLACES                     PHASE
jaeger-operator.v1.42.0-5-0.1687199951.p   Red Hat OpenShift distributed tracing platform   1.42.0-5+0.1687199951.p   jaeger-operator.v1.34.1-5    Succeeded
kiali-operator.v1.65.7                     Kiali Operator                                   1.65.7                    kiali-operator.v1.65.6       Succeeded
servicemeshoperator.v2.4.1                 Red Hat OpenShift Service Mesh                   2.4.1-0                   servicemeshoperator.v2.4.0   Succeeded

Steps:
1. Create namespace service-mesh-test-service-mesh

2. Create a ServiceMeshMemberRoll default:
cat << EOF | oc create -f -
apiVersion: maistra.io/v1
kind: ServiceMeshMemberRoll
metadata:
  name: default
  namespace: istio-system
spec:
  members:
  - service-mesh-test-service-mesh
EOF

3. Create a VM service-mesh-vm:
cat << EOF | oc create -f -
apiVersion: kubevirt.io/v1
kind: VirtualMachine
metadata:
  name: service-mesh-vm
  namespace: service-mesh-test-service-mesh
spec:
  running: true
  template:
    metadata:
      annotations:
        sidecar.istio.io/inject: 'true'
      labels:
        debugLogs: 'true'
        kubevirt.io/domain: service-mesh-vm
        kubevirt.io/vm: service-mesh-vm
    spec:
      domain:
        devices:
          disks:
          - disk:
              bus: virtio
            name: containerdisk
          rng: {}
        resources:
          requests:
            memory: 128M
      volumes:
      - containerDisk:
          image: kubevirt/cirros-container-disk-demo:latest
        name: containerdisk
EOF

4. Create a Service service-mesh-vm-service-mesh-vm:
cat << EOF | oc create -f -
apiVersion: v1
kind: Service
metadata:
  name: service-mesh-vm-service-mesh-vm
  namespace: service-mesh-test-service-mesh
spec:
  ipFamilyPolicy: null
  ports:
  - port: 8000
    protocol: TCP
  selector:
    kubevirt.io/domain: service-mesh-vm
  sessionAffinity: None
  type: null
EOF

5. Create Deployment httpbin-v1-dp:
cat << EOF | oc create -f -
apiVersion: apps/v1
kind: Deployment
metadata:
  name: httpbin-v1-dp
  namespace: service-mesh-test-service-mesh
spec:
  replicas: 1
  selector:
    matchLabels:
      app: httpbin
      version: v1
  template:
    metadata:
      annotations:
        sidecar.istio.io/inject: 'true'
      labels:
        app: httpbin
        version: v1
    spec:
      containers:
      - command:
        - gunicorn
        - -b
        - 0.0.0.0:8000
        - httpbin:app
        - -k
        - gevent
        image: quay.io/verygoodsecurity/httpbin:0.1.80
        imagePullPolicy: Always
        name: httpbin-v1-dp
        ports:
        - containerPort: 8080
      restartPolicy: Always
      serviceAccountName: httpbin
EOF

6. Create ServiceAccount httpbin:
cat << EOF | oc create -f -
apiVersion: v1
kind: ServiceAccount
metadata:
  name: httpbin
  namespace: service-mesh-test-service-mesh

EOF

7. Create Service httpbin:
cat << EOF | oc create -f -
apiVersion: v1
kind: Service
metadata:
  name: httpbin
  namespace: service-mesh-test-service-mesh
spec:
  ports:
  - port: 8000
    protocol: TCP
  selector:
    app: httpbin
EOF

8. Create PeerAuthentication default-pa:
cat << EOF | oc create -f -
apiVersion: security.istio.io/v1beta1
kind: PeerAuthentication
metadata:
  name: default-pa
  namespace: service-mesh-test-service-mesh
spec:
  mtls:
    mode: STRICT
EOF

9. Connect to the VM:
virtctl console service-mesh-vm

10. Send a curl request to the httpbin service:
curl http://httpbin:8000/ip

Expected output:

Actual output:
curl: (6) Couldn't resolve host 'httpbin'

If in steps 9-10, I'll connect to the VM virt-launcher pod and run the same curl command:
oc exec -it virt-launcher-service-mesh-vm – bash

I'll get the expected output containing the 127.0.0.6 IP address.

I'm including the virt-launcher pod's logs.