https://github.com/DataDog/dd-agent/issues/3588#issuecomment-345725248

dd-daemonset.json

{
  "kind": "DaemonSet",
  "apiVersion": "extensions/v1beta1",
  "metadata": {
   "name": "dd-agent",
   "namespace": "kube-system",
   "selfLink": "/apis/extensions/v1beta1/namespaces/kube-system/daemonsets/dd-agent",
   "uid": "32c0241e-5edf-11e6-9c81-028433db5193",
   "resourceVersion": "52398371",
   "generation": 2,
   "creationTimestamp": "2016-08-10T09:45:40Z",
   "labels": {
    "app": "dd-agent"
   }
  },
  "spec": {
   "selector": {
    "matchLabels": {
     "app": "dd-agent"
    }
   },
   "template": {
    "metadata": {
     "name": "dd-agent",
     "creationTimestamp": null,
     "labels": {
      "app": "dd-agent"
     }
    },
    "spec": {
     "volumes": [
      {
       "name": "dockersocket",
       "hostPath": {
        "path": "/var/run/docker.sock"
       }
      },
      {
       "name": "procdir",
       "hostPath": {
        "path": "/proc"
       }
      },
      {
       "name": "cgroups",
       "hostPath": {
        "path": "/sys/fs/cgroup"
       }
      },
      {
       "name": "bin",
       "hostPath": {
        "path": "/bin"
       }
      },
      {
       "name": "checks",
       "configMap": {
        "name": "dd-agent-checks",
        "defaultMode": 420
       }
      },
      {
       "name": "conf",
       "configMap": {
        "name": "dd-agent-conf",
        "defaultMode": 420
       }
      },
      {
       "name": "etc",
       "hostPath": {
        "path": "/etc"
       }
      },
      {
       "name": "lib",
       "hostPath": {
        "path": "/lib"
       }
      },
      {
       "name": "lib64",
       "hostPath": {
        "path": "/lib64"
       }
      },
      {
       "name": "run",
       "hostPath": {
        "path": "/run"
       }
      },
      {
       "name": "usr",
       "hostPath": {
        "path": "/usr"
       }
      },
      {
       "name": "var",
       "hostPath": {
        "path": "/var"
       }
      }
     ],
     "containers": [
      {
       "name": "dd-agent",
       "image": "datadog/docker-dd-agent:12.4.5181",
       "ports": [
        {
         "name": "dogstatsdport",
         "hostPort": 8125,
         "containerPort": 8125,
         "protocol": "UDP"
        }
       ],
       "env": [
        {
         "name": "API_KEY",
         "valueFrom": {
          "configMapKeyRef": {
           "name": "dd-agent",
           "key": "api.key"
          }
         }
        },
        {
         "name": "DD_HOSTNAME",
         "valueFrom": {
          "fieldRef": {
           "apiVersion": "v1",
           "fieldPath": "metadata.name"
          }
         }
        },
        {
         "name": "DD_LOGS_STDOUT",
         "value": "yes"
        },
        {
         "name": "KUBERNETES",
         "value": "yes"
        },
        {
         "name": "KUBERNETES_COLLECT_EVENTS",
         "value": "true"
        },
        {
         "name": "KUBERNETES_LEADER_CANDIDATE",
         "value": "true"
        },
        {
         "name": "KUBERNETES_LEADER_LEASE_DURATION",
         "value": "60"
        },
        {
         "name": "KUBERNETES_NAMESPACE_NAME_REGEX",
         "value": ".+"
        },
        {
         "name": "LOG_LEVEL",
         "value": "INFO"
        },
        {
         "name": "SD_BACKEND",
         "value": "docker"
        }
       ],
       "resources": {
        "limits": {
         "cpu": "250m",
         "memory": "512Mi"
        },
        "requests": {
         "cpu": "100m",
         "memory": "128Mi"
        }
       },
       "volumeMounts": [
        {
         "name": "dockersocket",
         "mountPath": "/var/run/docker.sock"
        },
        {
         "name": "procdir",
         "readOnly": true,
         "mountPath": "/host/proc"
        },
        {
         "name": "cgroups",
         "readOnly": true,
         "mountPath": "/host/sys/fs/cgroup"
        },
        {
         "name": "checks",
         "mountPath": "/checks.d"
        },
        {
         "name": "conf",
         "mountPath": "/conf.d"
        }
       ],
       "terminationMessagePath": "/dev/termination-log",
       "imagePullPolicy": "Always"
      }
     ],
     "restartPolicy": "Always",
     "terminationGracePeriodSeconds": 30,
     "dnsPolicy": "ClusterFirst",
     "serviceAccountName": "dd-agent",
     "serviceAccount": "dd-agent",
     "hostNetwork": true,
     "securityContext": {}
    }
   }
  },
  "status": {
   "currentNumberScheduled": 4,
   "numberMisscheduled": 0,
   "desiredNumberScheduled": 4,
   "numberReady": 4
  }
 }