1. Is very cool! I tried it and it works. I am more interested in 2. as it seems more future proof when we move away from simple hosts file. Any suggestions on how to configure an internal dns. Do I need to start another instance for dnsmasq? Can I reuse the default? How would the container relay DNS requests to the host?
On Wed, May 31, 2017 at 7:02 PM, Simos Xenitellis < [email protected]> wrote: > On Wed, May 31, 2017 at 1:46 PM, Adil Baig <[email protected]> wrote: > > I have several containers running on host machines. The host machine is > part > > of a LAN network. Each host has an update /etc/hosts file with domain > names > > to other LAN entities. > > > > My problem is I cannot use the hostnames defined on the host inside the > > container (without actually copying the /etc/hosts file in). I'd rather > not > > copy the file as I sync /etc/hosts file using Ansible, and the Ansible > > inventory cannot manage LXD containers dynamically. > > > > How is it possible to set up the containers so they look up entries in > the > > host machines' /etc/hosts file? > > > > As far as I understand, you want to get a container to have access to > the /etc/hosts of its host. > For this to work, the host needs to make a special arrangement in > order to make /etc/hosts > available to the containers. > > 1. You might be able to do something like > > lxc config device add mycontainer etchosts disk path=/etc/hosts > source=/etc/hosts > > which means that the container's /etc/hosts is actually the host's > /etc/hosts. > The LXD containers have a stock /etc/hosts, therefore on their part > they do not need an individual special entry. > > 2. Instead of having these static entries (/etc/hosts), you can > consider using a local DNS server. > LXD uses already a separate DNS server (dnsmasq) for the containers, > which by default resolves all those *.lxd hostnames. > > Simos > _______________________________________________ > lxc-users mailing list > [email protected] > http://lists.linuxcontainers.org/listinfo/lxc-users
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