On Fri, Oct 07, 2016 at 12:51:59AM +0300, Catalin wrote:
maybe I'm come with not right answer , I think that depend by network configuration over internet and routing process over applications. so will not be any conflict. I'm right?
Both docker and libvirt use iptables to direct traffic in various ways. They may well be in conflict
I think you're comment doesn't justify your conclusion. You are correct in your indication that iptables rules may be different based on network and routing configuration, but just because they may be different based on configuration in no way precludes the two systems (docker and libvirt) from being in conflict.
Neil
2016-10-06 22:18 GMT+03:00 Neil Horman nhorman@redhat.com:
On Thu, Oct 06, 2016 at 02:02:09PM -0500, Dan Williams wrote:
On Thu, 2016-10-06 at 12:39 -0600, Nathanael D. Noblet wrote:
On Thu, 2016-10-06 at 14:28 -0400, Neil Horman wrote:
I rarely mess with docker, but I expect that the docker0 bridge has an ip address on it which may conflict with the one on libvirt bridge. That is to say, if they are on the same subnet, and the route for the docker0 bridge takes precidence, you will loose dhcp. Check the docker bridge ip and remove it if you see one, I expect that will restore your functionality
Unfortunately that isn't the issue as the docker bridge is 172... and bridge0 is 192.168... so they don't conflict. Also docker0 doesn't seem to have any devices (meaning it brctl show has no interfaces attached to it). Finally shutting down docker and removing docker0 doesn't restore connectivity, only a reboot does. Not even restarting NM fixes the issue.
Try running 'iptables-save' before you start docker, and then running 'iptables-save' after. Diff the results. Did docker remove anything?
+1, thats the next thing to look at. Both docker and libvirt use iptables to direct traffic in various ways. They may well be in conflict Neil
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