Add lifecycle istio-proxy when install istio via helm in microk8s

I’m using microk8s v1.21.7 for testing with istio. I installed istio with helm chart and edited file values.yaml as below

  proxy:
    image: proxyv2
    lifecycle:
      preStop:
        exec:
          command: ["/bin/sh", "-c", "while [ $(netstat -plunt | grep tcp | grep -v envoy | wc -l | xargs) -ne 0 ]; do sleep 1; done"]

All release is deployed success, but when i tested bookinfo example, in istio-proxy container i can’t find lifecycle section. What is my wrong, please help me. Tks!

helm ls -A
NAME            NAMESPACE       REVISION        UPDATED                                 STATUS          CHART           APP VERSION
istio-base      istio-system    1               2021-12-24 10:37:43.921927421 +0000 UTC deployed        base-1.12.1     1.12.1     
istiod          istio-system    1               2021-12-24 10:38:01.208956645 +0000 UTC deployed        istiod-1.12.1   1.12.1   
  istio-proxy:                                                                     
    Container ID:  containerd://7e0806a33680845dd868e8186e4e1d2590b9e34dfb02ac1abad7f118927ed9aa
    Image:         docker.io/istio/proxyv2:1.12.1
    Image ID:      docker.io/istio/proxyv2@sha256:4704f04f399ae24d99e65170d1846dc83d7973f186656a03ba70d47bd1aba88f
    Port:          15090/TCP
    Host Port:     0/TCP
    Args:               
      proxy             
      sidecar
      --domain
      $(POD_NAMESPACE).svc.cluster.local                                     
      --proxyLogLevel=warning
      --proxyComponentLogLevel=misc:error
      --log_output_level=default:info
      --concurrency                                                          
      2    
    State:          Running
      Started:      Fri, 24 Dec 2021 10:40:16 +0000
    Ready:          True                                                
    Restart Count:  0
    Limits:                    
      cpu:     2                         
      memory:  1Gi
    Requests:                                                                                      
      cpu:      100m              
      memory:   128Mi
    Readiness:  http-get http://:15021/healthz/ready delay=1s timeout=3s period=2s #success=1 #failure=30
    Environment: 
       ....