Stop using OpenDNS

Ianw noticed problems on fedora29 with unbound. That resulted in a bug
filed upstream,
https://www.nlnetlabs.nl/bugs-script/show_bug.cgi?id=4226. In this bug
the helpful unbound maintainers point out that OpenDNS servers are
having trouble with RRSIG records which leads to not validating dnssec
which we require in our unbound config.

Address this by switching to CloudFlare DNS which is suppsoed to be
super localized (aka responsive), and not record queries against it.
Also if we want to we can update our config to do dns over tls against
these servers.

Change-Id: I08ef6a6fba2706803d2e9de6197e0ef8d695e313
This commit is contained in:
Clark Boylan 2019-02-08 09:32:38 -08:00
parent e3e36f3093
commit 82e14dee9c
3 changed files with 6 additions and 6 deletions

View File

@ -18,13 +18,13 @@ The image should have the unbound DNS resolver package installed, the
``nodepool-base`` element then configures it to forward DNS queries
to:
``NODEPOOL_STATIC_NAMESERVER_V4``, default: ``208.67.222.222``
``NODEPOOL_STATIC_NAMESERVER_V4``, default: ``1.1.1.1``
``NODEPOOL_STATIC_NAMESERVER_V4_FALLBACK``, default: ``8.8.8.8``.
If ``NODEPOOL_STATIC_NAMESERVER_POPULATE_IPV6`` is set to ``1`` then
the following two servers will be configured as forwarders too
``NODEPOOL_STATIC_NAMESERVER_V6``, default: ``2620:0:ccc::2``
``NODEPOOL_STATIC_NAMESERVER_V6``, default: ``2606:4700:4700::1111``
``NODEPOOL_STATIC_NAMESERVER_V6_FALLBACK``, default: ``2001:4860:4860::8888``
Note externally setting either of these values implies

View File

@ -1,4 +1,4 @@
export NODEPOOL_STATIC_NAMESERVER_V6=${NODEPOOL_STATIC_NAMESERVER_V6:-2620:0:ccc::2}
export NODEPOOL_STATIC_NAMESERVER_V4=${NODEPOOL_STATIC_NAMESERVER_V4:-208.67.222.222}
export NODEPOOL_STATIC_NAMESERVER_V6=${NODEPOOL_STATIC_NAMESERVER_V6:-2606:4700:4700::1111}
export NODEPOOL_STATIC_NAMESERVER_V4=${NODEPOOL_STATIC_NAMESERVER_V4:-1.1.1.1}
export NODEPOOL_STATIC_NAMESERVER_V6_FALLBACK=${NODEPOOL_STATIC_NAMESERVER_V6_FALLBACK:-2001:4860:4860::8888}
export NODEPOOL_STATIC_NAMESERVER_V4_FALLBACK=${NODEPOOL_STATIC_NAMESERVER_V4_FALLBACK:-8.8.8.8}

View File

@ -31,7 +31,7 @@ set -e
# [1] http://git.openstack.org/cgit/openstack-infra/openstack-zuul-jobs/tree/roles/configure-unbound
#
NODEPOOL_STATIC_NAMESERVER_V4=${NODEPOOL_STATIC_NAMESERVER_V4:-208.67.222.222}
NODEPOOL_STATIC_NAMESERVER_V4=${NODEPOOL_STATIC_NAMESERVER_V4:-1.1.1.1}
NODEPOOL_STATIC_NAMESERVER_V4_FALLBACK=${NODEPOOL_STATIC_NAMESERVER_V4_FALLBACK:-8.8.8.8}
# Explicitly setting a v6 nameserver implies you want ipv6
@ -40,7 +40,7 @@ if [[ -n ${NODEPOOL_STATIC_NAMESERVER_V6:-} || -n ${NODEPOOL_STATIC_NAMESERVER_V
fi
if [[ ${NODEPOOL_STATIC_NAMESERVER_POPULATE_IPV6:-0} == 1 ]]; then
NODEPOOL_STATIC_NAMESERVER_V6=${NODEPOOL_STATIC_NAMESERVER_V6:-2620:0:ccc::2}
NODEPOOL_STATIC_NAMESERVER_V6=${NODEPOOL_STATIC_NAMESERVER_V6:-2606:4700:4700::1111}
NODEPOOL_STATIC_NAMESERVER_V6_FALLBACK=${NODEPOOL_STATIC_NAMESERVER_V6_FALLBACK:-2001:4860:4860::8888}
dd of=/tmp/forwarding.conf <<EOF