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

[Ron Kelley]

What profile(s) are you using for your LXC containers?



On Oct 20, 2016, at 1:33 PM, Michael Peek <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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