openstack/kayobe
Code Issues Proposed changes

Allow resolv.conf configuration to be prevented

Browse Source 
In some cases we may wish to use an existing DNS resolver configuration, or to
acquire the configuration via a protocol such as DHCP. In these cases the
variable resolv_is_managed should be set to false.

Change-Id: I1e4661f3eedd87da15142d2d6815aaeb0493be6c
Story: 2001967
Task: 15718
This commit is contained in:
stack 2018-05-04 18:47:29 +01:00 committed by Mark Goddard
parent 1c376f071e
commit 53c5ee1366
5 changed files with 30 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
ansible/group_vars/all/dns
View File

@ -2,6 +2,9 @@
###############################################################################
# DNS.
# Whether kayobe should configure resolv.conf.
resolv_is_managed: true
# List of DNS nameservers.
resolv_nameservers:
- 8.8.8.8

1
ansible/network.yml
View File

@ -50,6 +50,7 @@
roles:
- role: ahuffman.resolv
when: resolv_is_managed | bool
become: True
- role: MichaelRigart.interfaces

19
doc/source/configuration/network.rst
View File

@ -368,6 +368,25 @@ VLAN to be forwarded by the bridge, whereas adding a VLAN interface to an
Ethernet or bond interface that is a bridge member port will prevent tagged
traffic for that VLAN being forwarded by the bridge.
Domain Name Service (DNS) Resolver Configuration
================================================
Kayobe supports configuration of hosts' DNS resolver via ``resolv.conf``. DNS
configuration should be added to ``dns.yml``. For example:
.. code-block:: yaml
:caption: ``dns.yml``
resolv_nameservers:
- 8.8.8.8
- 8.8.4.4
resolv_domain: example.com
resolv_search:
- kayobe.example.com
It is also possible to prevent kayobe from modifying ``resolv.conf`` by setting
``resolv_is_managed`` to ``false``.
Network Role Configuration
==========================

3
etc/kayobe/dns.yml
View File

@ -2,6 +2,9 @@
###############################################################################
# DNS.
# Whether kayobe should configure resolv.conf.
#resolv_is_managed:
# List of DNS nameservers.
#resolv_nameservers:

4
releasenotes/notes/prevent-resolv.conf-4a09d50f60f3fe28.yaml Normal file
View File

@ -0,0 +1,4 @@
---
features:
- Adds the ability to prevent configuration of the DNS resolver. This can be
done by setting ``resolv_is_managed`` to ``false``.