VOL-569: Create kubernetes deployment configuration for each voltha service

This update adds kubernetes deployment files for kafka/zookeeper.

Change-Id: I00d4d453de64dc4976d32a76c11f4b3fcb978d2c
diff --git a/k8s/kafka.yml b/k8s/kafka.yml
new file mode 100644
index 0000000..84f48cb
--- /dev/null
+++ b/k8s/kafka.yml
@@ -0,0 +1,51 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: kafka
+spec:
+  clusterIP: None
+  selector:
+    app: kafka
+  ports:
+  - protocol: TCP
+    port: 9092
+    targetPort: 9092
+---
+apiVersion: apps/v1beta1
+kind: StatefulSet
+metadata:
+  name: kafka
+spec:
+  serviceName: kafka
+  replicas: 3
+  selector:
+    matchLabels:
+      app: kafka
+  template:
+    metadata:
+      labels:
+        app: kafka
+    spec:
+      terminationGracePeriodSeconds: 10
+      affinity:
+        podAntiAffinity:
+          requiredDuringSchedulingIgnoredDuringExecution:
+            - labelSelector:
+                matchExpressions:
+                  - key: app
+                    operator: In
+                    values:
+                      - kafka
+              topologyKey: kubernetes.io/hostname
+      containers:
+      - name: kafka
+        image: wurstmeister/kafka:1.0.0
+        ports:
+        - containerPort: 9092
+        env:
+        - name: KAFKA_ADVERTISED_PORT
+          value: "9092"
+        - name: KAFKA_ZOOKEEPER_CONNECT
+          value: zoo1:2181,zoo2:2181,zoo3:2181
+        - name: KAFKA_HEAP_OPTS
+          value: "-Xmx256M -Xms128M"