#Test Scenario 1: change proxy concurrency value through the smcp 
1. set spec.proxy.concurrency value '3' explicitly in SMCP 
// smcp
spec:
  addons:
    grafana:
      enabled: true
    jaeger:
      install: {}
    kiali:
      enabled: true
    prometheus:
      enabled: true
  policy:
    type: Istiod
  profiles:
  - default
  proxy:
    concurrency: 3                   //set concurrecy value
    runtime:
      container:
        resources:                   //set istio-proxy container's resources
          limits:
            cpu: 3000m
            memory: 1024Mi
2. deploy service mesh member project (bookinfo sample application)   // container resource values are applied but concurrency value is not applied.
// application pod
$oc describe pod/productpage-v1-5ddcb4b84f-t2b66 
...
  istio-proxy:
    Container ID:  cri-o://6fc4c27918104cbcbc9d8123c7ea1f20d437e006efa8c2820fa44346b41aa889
    Image:         registry.redhat.io/openshift-service-mesh/proxyv2-rhel8@sha256:13f566dca713189e5bdb4c67c1754fafc1ebc3f8b9696ccb2093f927d186737f
    Image ID:      registry.redhat.io/openshift-service-mesh/proxyv2-rhel8@sha256:13f566dca713189e5bdb4c67c1754fafc1ebc3f8b9696ccb2093f927d186737f
    Port:          15090/TCP
    Host Port:     0/TCP
    Args:
      proxy
      sidecar
      --domain
      $(POD_NAMESPACE).svc.cluster.local
      --serviceCluster
      details.$(POD_NAMESPACE)
      --proxyLogLevel=warning
      --proxyComponentLogLevel=misc:error
      --log_output_level=default:warn
      --concurrency                      //The concurrency value is still 2(default) and not propagated by SMCP
      2
    State:          Running
      Started:      Tue, 22 Feb 2022 14:41:35 +0900
    Ready:          True
    Restart Count:  0
    Limits:
      cpu:     3                         //resource values are applied by SMCP
      memory:  1Gi
    Requests:
      cpu:      10m
      memory:   128Mi
    Environment:
      JWT_POLICY:                    first-party-jwt
      PILOT_CERT_PROVIDER:           istiod
      CA_ADDR:                       istiod-basic.istio-system.svc:15012
      POD_NAME:                      productpage-v1-5ddcb4b84f-t2b66 (v1:metadata.name)
      POD_NAMESPACE:                 bookinfo (v1:metadata.namespace)
      INSTANCE_IP:                    (v1:status.podIP)
      SERVICE_ACCOUNT:                (v1:spec.serviceAccountName)
      HOST_IP:                        (v1:status.hostIP)
      CANONICAL_SERVICE:              (v1:metadata.labels['service.istio.io/canonical-name'])
      CANONICAL_REVISION:             (v1:metadata.labels['service.istio.io/canonical-revision'])
      PROXY_CONFIG:                  {"discoveryAddress":"istiod-basic.istio-system.svc:15012","tracing":{"zipkin":{"address":"jaeger-collector.istio-system.svc:9411"}},"proxyMetadata":{"ISTIO_META_DNS_AUTO_ALLOCATE":"true","ISTIO_META_DNS_CAPTURE":"true","PROXY_XDS_VIA_AGENT":"true"}}

#test senario2: set annotaion in application deployment
$oc edit deployment/application
spec:
  progressDeadlineSeconds: 600
  replicas: 1
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      app: productpage
      version: v1
  strategy:
    rollingUpdate:
      maxSurge: 25%
      maxUnavailable: 25%
    type: RollingUpdate
  template:
    metadata:
      annotations:
        sidecar.istio.io/inject: "true"
        proxy.istio.io/config: 'concurrency: 3'          // set annotation
      creationTimestamp: null
      labels:
        app: productpage
        version: v1
4. check the pod : concurrency value has been changed
  istio-proxy:
    Container ID:  cri-o://7986ff697cb2243c62bfa0d26c29700b741f3c958f7824a8bb6f5cc441eb6fff
    Image:         registry.redhat.io/openshift-service-mesh/proxyv2-rhel8@sha256:13f566dca713189e5bdb4c67c1754fafc1ebc3f8b9696ccb2093f927d186737f
    Image ID:      registry.redhat.io/openshift-service-mesh/proxyv2-rhel8@sha256:13f566dca713189e5bdb4c67c1754fafc1ebc3f8b9696ccb2093f927d186737f
    Port:          15090/TCP
    Host Port:     0/TCP
    Args:
      proxy
      sidecar
      --domain
      $(POD_NAMESPACE).svc.cluster.local
      --serviceCluster
      productpage.$(POD_NAMESPACE)
      --proxyLogLevel=warning
      --proxyComponentLogLevel=misc:error
      --log_output_level=default:warn
      --concurrency                                  // concurrency is 3
      3
    State:          Running
      Started:      Tue, 22 Feb 2022 14:49:37 +0900
    Ready:          True
    Restart Count:  0
    Limits:
      cpu:     3
      memory:  1Gi
    Requests:
      cpu:      10m
      memory:   128Mi
    Readiness:  http-get http://:15021/healthz/ready delay=1s timeout=3s period=2s #success=1 #failure=30
    Environment:
      JWT_POLICY:                    first-party-jwt
      PILOT_CERT_PROVIDER:           istiod
      CA_ADDR:                       istiod-basic.istio-system.svc:15012
      POD_NAME:                      productpage-v1-684fbf4694-lrml8 (v1:metadata.name)
      POD_NAMESPACE:                 bookinfo (v1:metadata.namespace)
      INSTANCE_IP:                    (v1:status.podIP)
      SERVICE_ACCOUNT:                (v1:spec.serviceAccountName)
      HOST_IP:                        (v1:status.hostIP)
      CANONICAL_SERVICE:              (v1:metadata.labels['service.istio.io/canonical-name'])
      CANONICAL_REVISION:             (v1:metadata.labels['service.istio.io/canonical-revision'])
      PROXY_CONFIG:                  {"discoveryAddress":"istiod-basic.istio-system.svc:15012","concurrency":3,"tracing":{"zipkin":{"address":"jaeger-collector.istio-system.svc:9411"}},"proxyMetadata":{"ISTIO_META_DNS_AUTO_ALLOCATE":"true","ISTIO_META_DNS_CAPTURE":"true","PROXY_XDS_VIA_AGENT":"true"}}