Add missing ip6tables package to docker container (#631)

mk01 · murali-reddy · commit d7a7a6d79743 · 2019-01-11T09:33:54.000+05:30
diff --git a/Dockerfile b/Dockerfile
@@ -2,6 +2,7 @@ FROM alpine:3.7
 
 RUN apk add --no-cache \
       iptables \
+      ip6tables \
       ipset \
       iproute2 \
       ipvsadm \
