[skip ci]Update chaos yaml and testcase description (#10386)

Signed-off-by: zhuwenxing <wenxing.zhu@zilliz.com>

tests/python_client/chaos/chaos_objects/pod_failure/chaos_datanode_pod_failure.yaml

@@ -4,16 +4,13 @@ metadata:
   name: test-datanode-pod-failure
   namespace: chaos-testing
 spec:
-  action: pod-failure
-  mode: one
-  value: ''
-  duration: '20s'
   selector:
     namespaces:
-      - chaos-testing         # target namespace of milvus deployment
+      - chaos-testing
     labelSelectors:
       app.kubernetes.io/instance: milvus-chaos
-      app.kubernetes.io/name: milvus
       component: datanode
-  scheduler:
-    cron: '@every 30s'
+  mode: one
+  action: pod-failure
+  duration: 2m
+  gracePeriod: 0

tests/python_client/chaos/chaos_objects/pod_failure/testcases.yaml

@@ -1,13 +1,11 @@
-# Testcases All-in-one
-#   pod kill
+# Pod Failure Testcases All-in-one
+#   pod failure
 #     standalone
-#       3 pods(standalone-ha-blabla, etcd, minio)
+#       todo
 #     cluster-1-node
-#       11 pods(proxy, rootcoord, querynode, querycoord, datanode, datacoord,
-#               indexnode, indexcoord, pulsar, etcd, minio)
+#       todo
 #     cluster-n-nodes
-#       11 pods* n: kill one and kill all
-
+#       4 pods(querynode, datanode, indexnode, proxy)
 Collections:
   -
     testcase:
@@ -18,6 +16,6 @@ Collections:
             search: fail
             query: fail
           cluster_n_nodes:
-            search: degrade
-            query: degrade
+            search: succ
+            query: succ
 

tests/python_client/chaos/chaos_objects/pod_kill/testcases.yaml

@@ -1,12 +1,12 @@
-# Testcases All-in-one
+# Pod Kill Testcases All-in-one
 #   pod kill
 #     standalone
-#       3 pods(standalone-ha-blabla, etcd, minio)
+#       todo
 #     cluster-1-node
 #       11 pods(proxy, rootcoord, querynode, querycoord, datanode, datacoord,
 #               indexnode, indexcoord, pulsar, etcd, minio)
 #     cluster-n-nodes
-#       11 pods* n: kill one and kill all
+#       todo
 
 Collections:
   -