title: Kubernetes metrics-server unable to add metric-resolution flag
body: <p>I am using kubernetes v1.9.7-gke.6. I am trying to edit the metrics-server deployment yaml and add --metric-resolution flag, when I add the flag and save the change I see on the terminal that the edit was successful. When I edit again the metrics-server deployment file the flag that I added it doesn't exist. Is there any way to edit the metrics server deployment yaml?</p>
  
  <p>Here is the deployment , its the default that created when I create a new kuberentes cluster at google cloud.</p>
  
  <pre><code>{
  "apiVersion": "extensions/v1beta1",
  "kind": "Deployment",
  "metadata": {
      "annotations": {
          "deployment.kubernetes.io/revision": "12",
          "kubectl.kubernetes.io/last-applied-configuration": "{\"apiVersion\":\"extensions/v1beta1\",\"kind\":\"Deployment\",\"metadata\":{\"annotations\":{},\"labels\":{\"addonmanager.kubernetes.io/mode\":\"Reconcile\",\"k8s-app\":\"metrics-server\",\"kubernetes.io/cluster-service\":\"true\",\"version\":\"v0.2.1\"},\"name\":\"metrics-server-v0.2.1\",\"namespace\":\"kube-system\"},\"spec\":{\"selector\":{\"matchLabels\":{\"k8s-app\":\"metrics-server\",\"version\":\"v0.2.1\"}},\"template\":{\"metadata\":{\"annotations\":{\"scheduler.alpha.kubernetes.io/critical-pod\":\"\"},\"labels\":{\"k8s-app\":\"metrics-server\",\"version\":\"v0.2.1\"},\"name\":\"metrics-server\"},\"spec\":{\"containers\":[{\"command\":[\"/metrics-server\",\"--source=kubernetes.summary_api:''\"],\"image\":\"gcr.io/google_containers/metrics-server-amd64:v0.2.1\",\"name\":\"metrics-server\",\"ports\":[{\"containerPort\":443,\"name\":\"https\",\"protocol\":\"TCP\"}]},{\"command\":[\"/pod_nanny\",\"--config-dir=/etc/config\",\"--cpu=40m\",\"--extra-cpu=0.5m\",\"--memory=40Mi\",\"--extra-memory=4Mi\",\"--threshold=5\",\"--deployment=metrics-server-v0.2.1\",\"--container=metrics-server\",\"--poll-period=300000\",\"--estimator=exponential\"],\"env\":[{\"name\":\"MY_POD_NAME\",\"valueFrom\":{\"fieldRef\":{\"fieldPath\":\"metadata.name\"}}},{\"name\":\"MY_POD_NAMESPACE\",\"valueFrom\":{\"fieldRef\":{\"fieldPath\":\"metadata.namespace\"}}}],\"image\":\"gcr.io/google_containers/addon-resizer:1.8.1\",\"name\":\"metrics-server-nanny\",\"resources\":{\"limits\":{\"cpu\":\"100m\",\"memory\":\"300Mi\"},\"requests\":{\"cpu\":\"5m\",\"memory\":\"50Mi\"}},\"volumeMounts\":[{\"mountPath\":\"/etc/config\",\"name\":\"metrics-server-config-volume\"}]}],\"serviceAccountName\":\"metrics-server\",\"tolerations\":[{\"key\":\"CriticalAddonsOnly\",\"operator\":\"Exists\"}],\"volumes\":[{\"configMap\":{\"name\":\"metrics-server-config\"},\"name\":\"metrics-server-config-volume\"}]}}}}\n"
      },
      "creationTimestamp": "2018-09-20T13:04:03Z",
      "generation": 14,
      "labels": {
          "addonmanager.kubernetes.io/mode": "Reconcile",
          "k8s-app": "metrics-server",
          "kubernetes.io/cluster-service": "true",
          "version": "v0.2.1"
      },
      "name": "metrics-server-v0.2.1",
      "namespace": "kube-system",
      "resourceVersion": "822513",
      "selfLink": "/apis/extensions/v1beta1/namespaces/kube-system/deployments/metrics-server-v0.2.1",
      "uid": "a5cd1f4c-bcd5-11e8-9313-42010a80005f"
  },
  "spec": {
      "replicas": 1,
      "selector": {
          "matchLabels": {
              "k8s-app": "metrics-server",
              "version": "v0.2.1"
          }
      },
      "strategy": {
          "rollingUpdate": {
              "maxSurge": 1,
              "maxUnavailable": 1
          },
          "type": "RollingUpdate"
      },
      "template": {
          "metadata": {
              "annotations": {
                  "scheduler.alpha.kubernetes.io/critical-pod": ""
              },
              "creationTimestamp": null,
              "labels": {
                  "k8s-app": "metrics-server",
                  "version": "v0.2.1"
              },
              "name": "metrics-server"
          },
          "spec": {
              "containers": [
                  {
                      "command": [
                          "/metrics-server",
                          "--source=kubernetes.summary_api:''"
                      ],
                      "image": "gcr.io/google_containers/metrics-server-amd64:v0.2.1",
                      "imagePullPolicy": "IfNotPresent",
                      "name": "metrics-server",
                      "ports": [
                          {
                              "containerPort": 443,
                              "name": "https",
                              "protocol": "TCP"
                          }
                      ],
                      "resources": {
                          "limits": {
                              "cpu": "48m",
                              "memory": "104Mi"
                          },
                          "requests": {
                              "cpu": "48m",
                              "memory": "104Mi"
                          }
                      },
                      "terminationMessagePath": "/dev/termination-log",
                      "terminationMessagePolicy": "File"
                  },
                  {
                      "command": [
                          "/pod_nanny",
                          "--config-dir=/etc/config",
                          "--cpu=40m",
                          "--extra-cpu=0.5m",
                          "--memory=40Mi",
                          "--extra-memory=4Mi",
                          "--threshold=5",
                          "--deployment=metrics-server-v0.2.1",
                          "--container=metrics-server",
                          "--poll-period=300000",
                          "--estimator=exponential"
                      ],
                      "env": [
                          {
                              "name": "MY_POD_NAME",
                              "valueFrom": {
                                  "fieldRef": {
                                      "apiVersion": "v1",
                                      "fieldPath": "metadata.name"
                                  }
                              }
                          },
                          {
                              "name": "MY_POD_NAMESPACE",
                              "valueFrom": {
                                 {
                                      "apiVersion": "v1",
                                      "fieldPath": "metadata.namespace"
                                  }
                              }
                          }
                      ],
                      "image": "gcr.io/google_containers/addon-resizer:1.8.1",
                      "imagePullPolicy": "IfNotPresent",
                      "name": "metrics-server-nanny",
                      "resources": {
                          "limits": {
                              "cpu": "100m",
                              "memory": "300Mi"
                          },
                          "requests": {
                              "cpu": "5m",
                              "memory": "50Mi"
                          }
                      },
                      "terminationMessagePath": "/dev/termination-log",
                      "terminationMessagePolicy": "File",
                      "volumeMounts": [
                          {
                              "mountPath": "/etc/config",
                              "name": "metrics-server-config-volume"
                          }
                      ]
                  }
              ],
              "dnsPolicy": "ClusterFirst",
              "restartPolicy": "Always",
              "schedulerName": "default-scheduler",
              "securityContext": {},
              "serviceAccount": "metrics-server",
              "serviceAccountName": "metrics-server",
              "terminationGracePeriodSeconds": 30,
              "tolerations": [
                  {
                      "key": "CriticalAddonsOnly",
                      "operator": "Exists"
                  }
              ],
              "volumes": [
                  {
                      "configMap": {
                          "defaultMode": 420,
                          "name": "metrics-server-config"
                      },
                      "name": "metrics-server-config-volume"
                  }
              ]
          }
      }
  },
  "status": {
      "availableReplicas": 1,    
       "conditions": [
          {
              "lastTransitionTime": "2018-09-20T13:04:03Z",
              "lastUpdateTime": "2018-09-20T13:04:03Z",
              "message": "Deployment has minimum availability.",
              "reason": "MinimumReplicasAvailable",
              "status": "True",
              "type": "Available"
          }
      ],
      "observedGeneration": 14,
      "readyReplicas": 1,
      "replicas": 1,
      "updatedReplicas": 1
  }
  }
  </code></pre>