api refactoring + pod network filter scenario

Signed-off-by: Tullio Sebastiani <tsebasti@redhat.com>

scenarios/kube/node-network-filter.yml

@@ -8,7 +8,7 @@
   execution: parallel
   ingress: false
   egress: true
-  target: node
+  target: ''
   interfaces: []
   ports:
-    - 2049
+    - 53

scenarios/kube/pod-network-filter.yml

@@ -0,0 +1,14 @@
+- id: pod_network_filter
+  image: "quay.io/krkn-chaos/krkn-network-chaos:latest"
+  wait_duration: 1
+  test_duration: 60ipt
+  label_selector: ""
+  namespace: 'default'
+  instance_count: 1
+  execution: parallel
+  ingress: false
+  egress: true
+  target: "network-victim"
+  interfaces: []
+  ports:
+    - 80