Add an yaml example in Writing a DaemonSet Spec (#4553)

* Add yaml example in DeamonSet doc

* Update daemonset.md

* use code include instead of duplicate in md

* remove redundant download link

docs/concepts/workloads/controllers/daemonset.md

@@ -26,6 +26,17 @@ different flags and/or different memory and cpu requests for different hardware
 
 ## Writing a DaemonSet Spec
 
+### Create a DeamonSet
+
+You can describe a DeamonSet in a YAML file. For example, the deamonset.yaml file below describes a DeamonSet that runs the fluentd-elasticsearch Docker image:
+
+{% include code.html language="yaml" file="deamonset.yaml" ghlink="/docs/concepts/workloads/controllers/deamonset.yaml" %}
+
+* Create a DeamonSet based on the YAML file:
+```
+kubectl create -f deamonset.yaml
+```
+
 ### Required Fields
 
 As with all other Kubernetes config, a DaemonSet needs `apiVersion`, `kind`, and `metadata` fields.  For

docs/concepts/workloads/controllers/deamonset.yaml

@@ -0,0 +1,36 @@
+apiVersion: extensions/v1beta1
+kind: DaemonSet
+metadata:
+  name: fluentd-elasticsearch
+  namespace: kube-system
+  labels:
+    k8s-app: fluentd-logging
+spec:
+  template:
+    metadata:
+      labels:
+        name: fluentd-elasticsearch
+    spec:
+      containers:
+      - name: fluentd-elasticsearch
+        image: gcr.io/google-containers/fluentd-elasticsearch:1.20
+        resources:
+          limits:
+            memory: 200Mi
+          requests:
+            cpu: 100m
+            memory: 200Mi
+        volumeMounts:
+        - name: varlog
+          mountPath: /var/log
+        - name: varlibdockercontainers
+          mountPath: /var/lib/docker/containers
+          readOnly: true
+      terminationGracePeriodSeconds: 30
+      volumes:
+      - name: varlog
+        hostPath:
+          path: /var/log
+      - name: varlibdockercontainers
+        hostPath:
+          path: /var/lib/docker/containers