Commit graph

43 commits

Author SHA1 Message Date
Chad Swenson
c402feffbd Parameterize several dependency endpoints so that they can be overridden with internal mirrors.
Signed-off-by: Chad Swenson <chadswen@gmail.com>
2016-10-15 12:26:52 -05:00
Smana
056f4b6c00 upgrade to kubernetes version 1.4.0
test to change the machine type

Revert "test to change the machine type"

This reverts commit 7a91f1b5405a39bee6cb91940b09a0b0f9d3aee1.

use google dns server when no upstream dns are defined

comment upstream_dns_servers

update documentation

remove deprecated kubelet flags

Revert "remove deprecated kubelet flags"

This reverts commit 21e3b893c896d0291c36a07d0414f4cb88b8d8ac.
2016-10-10 22:44:47 +02:00
Matthew Mosesohn
5579cddbdb Disable reverse lookups again
Initially this was removed, but it turns out that services that
perform reverse lookups (such as MariaDB) will encounter severe
performance degredation with this disabled.
2016-09-29 10:49:55 +04:00
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
dfb9063b3f Fix docs and dns servers placement order
- Update docs and a drawing to clarify DNS setup.
- Change order of nameservers placement to match
  changes in https://github.com/kubespray/kargo/pull/501

Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
2016-09-23 16:16:00 +02:00
Bogdan Dobrelya
82ee60fe8b Make dnsmasq daemon set optional
Change additional dnsmasq opts:
- Adjust caching size and TTL
- Disable resolve conf to not create loops
- Change dnsPolicy to default (similarly to kubedns's dnsmasq). The
  ClusterFirst should not be used to not create loops
- Disable negative NXDOMAIN replies to be cached
- Make its very installation as optional step (enabled by default).
  If you don't want more than 3 DNS servers, including 1 for K8s, disable
  it.
- Add docs and a drawing to clarify DNS setup.
- Fix stdout logs for dnsmasq/kubedns app configs
- Add missed notifies to resolvconf -u handler
- Fix idempotency of resolvconf head file changes

Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
2016-09-23 12:59:06 +02:00
Matthew Mosesohn
d313be4420 Improve management of nameservers in resolv.conf
Changing nameservers now will clean up previous entries
2016-09-22 18:11:15 +03:00
Özgür Caner
123532d2a4 Changed ImagePullPolicy from Always to IfNotPresent to avoid download issue when DNS is not working 2016-09-20 10:34:44 +02:00
Ivan Shvedunov
13874f4610 Fix reverse DNS lookups of service IPs.
This fixes "DNS should provide DNS for services [Conformance]"
e2e test in k8s.
2016-09-19 09:12:10 +03:00
Matthew Mosesohn
ef43b21597 Fix kubedns idempotency
Removed api-version from kube.py because it is deprecated.
Updating both kube.py because dnsmasq one is actually used.
Fixed name back to kubedns for checking its resource.
2016-09-13 16:49:51 +03:00
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
Matthew Mosesohn
33c8d0a1a7 Remove search and nameserver entries from resolvconf base
These items conflict when they are provided also in head file
Fixes: #456
2016-08-30 13:14:44 +03:00
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
dis
0fa90ec9e8 Fix resolvconf executable discovery
If resolvconf was installed and then removed, the file
/etc/resolvconf/resolv.conf.d/head remains in the filesystem

- change discovery of 'resolvconf' executable to check if it
  can be located with 'which resolvconf' command or not.
2016-08-10 17:22:33 +03:00
Matthew Mosesohn
acae5d4286 Check dnsmasq on first kube-node
kube-masters without kube-node role will not run
kube-proxy, and therefore can't check if dnsmasq
is running.

Fixes #368
2016-08-05 16:55:48 +04:00
Stig Telfer
64a39fdb86 Use var for bin dir instead of assuming /usr/local/bin
On CoreOS the binaries are not installed in /usr/local/bin.
2016-04-02 20:53:33 +01:00
teuto.net Netzdienste GmbH
457ed11b49 fixed deprecation warnings regarding bare variables 2016-03-30 10:23:43 +02:00
Smaine Kahlouch
7e6d7caf4b Dnsmasq runs on all nodes 2016-03-21 11:37:35 +01:00
ant31
6297e5ea93 Use dnsmasq inside pods 2016-03-19 23:41:27 +01:00
Antoine Legrand
b9781fa7c2 Symlink dnsmasq conf 2016-01-26 00:30:29 +01:00
Smaine Kahlouch
a5094f2a6a move /etc/hosts configuration in 'preinstall' role 2016-01-20 17:37:23 +01:00
Greg Althaus
fe5ec398bf Use IP is specified, otherwise use the ansible discovered address.
This fixes cases for use in Vagrant environments.
2016-01-20 08:34:39 -06:00
Smaine Kahlouch
b54af6b42f reduce dns timeout 2016-01-19 13:49:33 +01:00
Smaine Kahlouch
4c5735cef8 configure dnsmasq to listen on localhost only 2016-01-19 13:34:30 +01:00
Smaine Kahlouch
63ae6ba5b5 dnsmasq runs on all nodes 2016-01-19 10:31:47 +01:00
Smaine Kahlouch
f58b4d3dd6 dnsmasq listens on localhost 2016-01-19 10:29:33 +01:00
Smaine Kahlouch
d3a8584212 add timeout options to resolv.conf 2016-01-19 10:18:53 +01:00
Smaine Kahlouch
8127e8f8e8 Flannel running as pod 2016-01-15 13:03:27 +01:00
Smaine Kahlouch
51a0996087 fix regexp for resolv.conf 2016-01-15 12:18:03 +01:00
ant31
b769636435 Ansible 2.0 2016-01-13 16:40:24 +01:00
ant31
9c461e1018 Use inline update for resolv.conf 2016-01-05 12:31:49 +01:00
Smaine Kahlouch
1d1d8b9c28 add nodnsupdate hook for RedHat 2015-12-31 14:04:08 +01:00
Smaine Kahlouch
b72e220126 remove carriage return 2015-12-30 14:02:22 +01:00
Smaine Kahlouch
e0f460d9b5 copy template dnsmasq pod and remove handlers 2015-12-30 14:02:22 +01:00
ant31
2df70d6a3d Docker dnsmasq 2015-12-30 14:02:22 +01:00
ant31
d597f707f1 use backup file 2015-12-24 19:23:21 +01:00
Smaine Kahlouch
c91a3183d3 manage undefined vars for loadbalancing 2015-12-15 16:51:55 +01:00
Smaine Kahlouch
953f482585 kube-proxy loadbalancing, need an external loadbalancer 2015-12-15 15:20:08 +01:00
Smaine Kahlouch
b23b8aa3de dnsmasq with multi master arch 2015-12-12 19:37:08 +01:00
Smaine Kahlouch
6183a4d3b1 dns vars for skydns submodule 2015-10-13 17:12:59 +02:00
Smaine Kahlouch
00c562828f Initial commit 2015-10-03 22:19:50 +02:00