[lxc-users] LXC containers w/ static IPs work on some hosts, not on others
Michael Peek
peek at nimbios.org
Thu Oct 20 18:07:09 UTC 2016
I started out with lxd but ran into problems when I tried googling for
instructions on how to assign a static IP address to a container. All
of the instructions I found said to edit
/var/lib/lxc/<container>/config, and there was no /var/lib/lxc/
directory. So I uninstalled lxd and installed lxc instead.
Michael
On 10/20/2016 01:59 PM, McDonagh, Ed wrote:
>
> I’m very much not a guru on this topic, but it strikes me to check if
> you are using lxc for a reason, rather than using lxd?
>
>
>
> If you don’t have a legacy reason, I don’t know why you wouldn’t want
> to use the new tools that are being developed.
>
>
>
> *From:*lxc-users [mailto:lxc-users-bounces at lists.linuxcontainers.org]
> *On Behalf Of *Michael Peek
> *Sent:* 20 October 2016 18:57
> *To:* LXC users mailing-list
> *Subject:* Re: [lxc-users] LXC containers w/ static IPs work on some
> hosts, not on others
>
>
>
> There is no lxc-profile command, and lxc-ls and lxc-info don't list
> anything about a profile. I have no idea if that means anything.
>
> Michael
>
>
>
> On 10/20/2016 01:53 PM, McDonagh, Ed wrote:
>
> It will be the new lxc software, but without the niceness of the
> lxd interface.
>
>
>
> Hence all his commands being lxc-command instead of lxc command
>
>
>
> *From:*lxc-users
> [mailto:lxc-users-bounces at lists.linuxcontainers.org] *On Behalf Of
> *Ron Kelley
> *Sent:* 20 October 2016 18:51
> *To:* LXC users mailing-list
> *Subject:* Re: [lxc-users] LXC containers w/ static IPs work on
> some hosts, not on others
>
>
>
> hmmm, seems you are running the “original” version of lxc and not
> the new lxc/lxd software. Please ignore my comments then…
>
>
>
>
>
> On Oct 20, 2016, at 1:47 PM, Michael Peek <peek at nimbios.org
> <mailto:peek at nimbios.org>> wrote:
>
>
>
> # lxc profile show
> The program 'lxc' is currently not installed. You can install it
> by typing:
> apt install lxd-client
>
> Maybe that's part of the problem? Am I missing a package? Here
> are the packages I have installed for lxc:
>
> # dpkg -l | grep lxc | cut -c1-20
> ii liblxc1
> ii lxc
> ii lxc-common
> ii lxc-templates
> ii lxc1
> ii lxcfs
> ii python3-lxc
>
> Michael
>
> On 10/20/2016 01:43 PM, Ron Kelley wrote:
>
> "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
> <mailto: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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