[lxc-users] docker 1.11 - swarm - overlay

[Benoit GEORGELIN - Association Web4all]

Hi dear members of the list 
Are you able to use docker inside an LXD container , using a docker swarm cluster and an overlay network ? 

Here is what I have when I run a docker inside the cluster : 

docker: Error response from daemon: Error response from daemon: error creating external connectivity network: cannot restrict inter-container communication: please ensure that br_netfilter kernel module is loaded. 

This module exist on the host : 

lxd-virt-01b(06:35:32)/proc/sys/net/bridge] lsmod|grep br_net 
br_netfilter 24576 0 

The file exist 
/lib/modules/4.4.0-28-generic/kernel/net/bridge/br_netfilter.ko 

This module is loaded on the lxd container 

root at dock-m1:~# lsmod|grep br_net 
br_netfilter 24576 0 

But the file does not exist 
root at dock-m1:~# ls -al /lib/modules/4.4.0-28-generic/kernel/net/bridge/br_netfilter.ko 
ls: cannot access '/lib/modules/4.4.0-28-generic/kernel/net/bridge/br_netfilter.ko': No such file or directory ======> I don't know how to fix it :/ 


root at dock-m1:~# docker -v 
Docker version 1.11.2, build b9f10c9 

name: dock-m1 
profiles: 
- docker 
- default 

and I tried : 
config: 
security.privileged: "true" 


On the docker swarm , I have my overlay network : 

ab0e87a92785 swarm-network overlay 

I'm trying to execute this command : 
root at dock-m1:~# docker -H tcp://swarm_manager:port run -itd --net swarm-network -e constraint:node==dock-m1 --name u1 ubuntu 

Thanks for you help. 

PS: any idea if docker 1.12 is ready to be used inside an LXD container ? 
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