Commit Graph

8 Commits (a62f74259c8df233b177f7853a178bcbb7d9ef43)

Author SHA1 Message Date
Bogdan Dobrelya d208896c46 Ensure /etc/resolv.conf content for CoreOS
Use cloud-init config to replace /etc/resolv.conf with the
content for kubelet to properly configure hostnet pods.

Do not use systemd-resolved yet, see
https://coreos.com/os/docs/latest/configuring-dns.html
"Only nss-aware applications can take advantage of the
systemd-resolved cache. Notably, this means that statically
linked Go programs and programs running within Docker/rkt
will use /etc/resolv.conf only, and will not use the
systemd-resolve cache."

Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
2016-11-23 16:51:49 +01:00
Bogdan Dobrelya 5fd43b7cf0 Allow subdomains of dns_domain and fix kubelet restarts
* Add a var for ndots (default 5) and put it hosts' /etc/resolv.conf.
* Poke kube dns container image to v1.7
* In order to apply changes to kubelet, notify it to
be restarted on changes made to /etc/resolv.conf. Ignore errors as the kubelet
may yet to be present up to the moment of the notification being processed.
* Remove unnecessary kubelet restart for master role as the node role ensures
it is up and running. Notify master static pods waiters for apiserver,
scheduler, controller-manager instead.

Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
2016-09-27 14:32:49 +02:00
Bogdan Dobrelya d240073f65 Fix updating resolvconf
Move updating resolvconf to the network restart handler to
ensure changes applied to the /etc/resolv.conf.

Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
2016-09-01 11:10:26 +02:00
Bogdan Dobrelya ea57ce7514 Fix resolv.conf search/nameserver
* Ensure additional nameserver/search, if defined as vars.
* Don't backup changed dhclient hooks as they are going to be
  executed by dhclient as well, which is not what we want.
* For debian OS family only:
- Rename nodnsupdate hook the resolvconf hook to be sourced always
before it.
- Ensure dhclient restarted via network restart to apply the
nodnsupdate hook.
* For rhel OS family, the fix TBD, it doesn't work the same way.

Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
2016-08-24 15:31:57 +02:00
Smana 643b28f9d3 Revert "Fix resolv.conf search/nameserver"
This reverts commit 977f82c32c.
2016-08-24 12:36:25 +02:00
Bogdan Dobrelya 977f82c32c Fix resolv.conf search/nameserver
Rename nodnsupdate hook the resolvconf hook to be sourced always
before it.
Ensure dhclient restarted via network restart to apply the
nodnsupdate hook.
Ensure additional nameserver/search, if defined as vars.

Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
2016-08-22 11:53:44 +02:00
Smaine Kahlouch e0f460d9b5 copy template dnsmasq pod and remove handlers 2015-12-30 14:02:22 +01:00
Smaine Kahlouch 00c562828f Initial commit 2015-10-03 22:19:50 +02:00