Difference between revisions of "CentOS 7.x lxc container creation fails due to host resolution"
From Notes_Wiki
(Created page with "<yambe:breadcrumb>CentOS_7.x_lxc_troubleshooting|CentOS 7.x lxc troubleshooting</yambe:breadcrumb> =CentOS 7.x container creation fails due to host resolution= It is possible...") |
m |
||
| Line 1: | Line 1: | ||
<yambe:breadcrumb>CentOS_7.x_lxc_troubleshooting|CentOS 7.x lxc troubleshooting</yambe:breadcrumb> | <yambe:breadcrumb>CentOS_7.x_lxc_troubleshooting|CentOS 7.x lxc troubleshooting</yambe:breadcrumb> | ||
=CentOS 7.x container creation fails due to host resolution= | =CentOS 7.x lxc container creation fails due to host resolution= | ||
It is possible that CentOS 7.x container creation fails with errors similar to | It is possible that CentOS 7.x container creation fails with errors similar to | ||
Revision as of 16:00, 23 January 2017
<yambe:breadcrumb>CentOS_7.x_lxc_troubleshooting|CentOS 7.x lxc troubleshooting</yambe:breadcrumb>
CentOS 7.x lxc container creation fails due to host resolution
It is possible that CentOS 7.x container creation fails with errors similar to
[Errno 14] curl#6 - "Could not resolve host: centos.mirror.snu.edu.in; Unknown error" Trying other mirror.
even though DNS is working fine. This is possible because lxc (unfortunately) uses DNS configuration from cache and not from host. That is lxc-create uses DNS configuration from
/var/cache/lxc/centos/x86_64/7/rootfs/etc/resolv.conf
for centos-7 containers. To solve the issue edit above file and add appropriate nameserver. If 4.2.2.2 and 8.8.8.8 are used then the settings should work at multiple locations without any problem.
