Setting imagePullPolicy to Always

Change-Id: Iada3d3656a672154da6641c3ee55b57ec4c28fcb
diff --git a/voltha/templates/60-cluster-ingress-nginx.yaml b/voltha/templates/60-cluster-ingress-nginx.yaml
index 5518253..7919eb7 100644
--- a/voltha/templates/60-cluster-ingress-nginx.yaml
+++ b/voltha/templates/60-cluster-ingress-nginx.yaml
@@ -37,7 +37,7 @@
         - -c
         - sysctl -w net.core.somaxconn=32768; sysctl -w net.ipv4.ip_local_port_range="1024 65535"
         image: alpine:3.6
-        imagePullPolicy: IfNotPresent
+        imagePullPolicy: Always
         name: sysctl
         securityContext:
           privileged: true