Johan Thomsen 58da2d412d Fix for network policy connection refused issue (#461) (#471)
* Instead of clearing the iptables firewall chains for each resync, new chains are now generated side-by-side with the existing ones.

* Chain naming now has an addition component, version, which ensures chain name uniqueness.

* Existing cleanup procedure for stale iptables rules will handle garbage collection of unused chains.
2018-06-21 16:39:24 +05:30
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