[libvirt-users] Networking issues with lxc containers in AWS EC2

[Laine Stump]

On 03/31/2016 06:43 PM, Peter Steele wrote:
> I've created an EC2 AMI for AWS that essentially represents a CentOS 7 
> "hypervisor" image. I deploy instances of these in AWS and create an 
> number of libvirt based lxc containers on each of these instances. The 
> containers run fine within a single host and have no problem 
> communicating with themselves as well as with their host, and vice 
> versa. However, containers hosted in one EC2 instance cannot 
> communicate with containers hosted in another EC2 instance.
>
> We've tried various tweaks with our Amazon VPC but have been unable to 
> find a way to solve this networking issue. If I use something like 
> VMware or KVM and create VMs using this same hypervisor image, the 
> containers running under these VMs can communicate with with each 
> other, even across different hosts.

What is the <interface> config of your nested containers? Do they each 
get a public IP address?

>
> My real question is has anyone tried deploying EC2 images that host 
> containers and have figured out how to successfully communicate 
> between containers on different hosts?
>

No experience with EC2, sorry.