[lxc-users] LXC containers w/ static IPs work on some hosts, not on others

[Ron Kelley]

"lxc profile show”.  Usually, you have a default profile that gets applied to your container unless you have created a new/custom profile.





On Oct 20, 2016, at 1:41 PM, Michael Peek <peek at nimbios.org> wrote:

How do I tell?

Michael



On 10/20/2016 01:35 PM, Ron Kelley wrote:
> What profile(s) are you using for your LXC containers?
> 
> 
> 
> On Oct 20, 2016, at 1:33 PM, Michael Peek <peek at nimbios.org <mailto:peek at nimbios.org>> wrote:
> 
> Hi gurus,
> 
> I'm scratching my head again.  I'm using the following commands to create an LXC container with a static IP address:
> 
> # lxc-create -n my-container-1 -t download -- -d ubuntu -r xenial -a amd64
> 
> # vi /var/lib/lxc/my-container-1/config
> 
> Change:
> # Network configuration
> # lxc.network.type = veth
> # lxc.network.link = lxcbr0
> # lxc.network.flags = up
> # lxc.network.hwaddr = 00:16:3e:0d:ec:13
> lxc.network.type = macvlan
> lxc.network.link = eno1
> 
> # vi /var/lib/lxc/my-container-1/rootfs/etc/network/interfaces
> 
> Change:
> #iface eth0 inet dhcp
> iface eth0 inet static
>   address xxx.xxx.xxx.4
>   netmask 255.255.255.0
>   network xxx.xxx.xxx.0
>   broadcast xxx.xxx.xxx.255
>   gateway xxx.xxx.xxx.1
>   dns-nameservers xxx.xxx.0.66 xxx.xxx.128.66 8.8.8.8
>   dns-search my.domain
> 
> # lxc-start -n my-container-1 -d
> 
> It failed to work.  I reviewed my notes from past posts to the list but found no discrepancies.  So I deleted the container and tried it on another host -- and it worked.  Next I deleted that container and went back to the first host, and it failed.  Lastly, I tried the above steps on multiple hosts and found that it works fine on some hosts, but not on others, and I have no idea why.  On hosts where this fails there are no error messages, but the container can't access the network, and nothing on the network can access the container.
> 
> Is there some step that I'm missing?
> 
> Thanks for any help,
> 
> Michael Peek
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