kubernetes-sigs
/
kubespray
mirror of https://github.com/kubernetes-sigs/kubespray.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
kubespray/roles/dnsmasq/defaults/main.yml

33 lines
724 B
YAML
Raw Normal View History

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>
2016-08-18 23:14:52 +08:00
---
# Existing search/nameserver resolvconf entries will be purged and
# ensured by this additional data:
# Max of 4 names is allowed and no more than 256 - 17 chars total
# (a 2 is reserved for the 'default.svc.' and'svc.')
#searchdomains:
# - foo.bar.lc
# Max of 2 is allowed here (a 1 is reserved for the dns_server)
#nameservers:
# - 127.0.0.1
Parameterize several dependency endpoints so that they can be overridden with internal mirrors. Signed-off-by: Chad Swenson <chadswen@gmail.com>
2016-10-15 05:46:44 +08:00
Allow to specify number of concurrent DNS queries ndots creates overhead as every pod creates 5 concurrent connections that are forwarded to sky dns. Under some circumstances dnsmasq may prevent forwarding traffic with "Maximum number of concurrent DNS queries reached" in the logs. This patch allows to configure the number of concurrent forwarded DNS queries "dns-forward-max" as well as "cache-size" leaving the default values as they were before. Signed-off-by: Sergii Golovatiuk <sgolovatiuk@mirantis.com>
2017-01-19 17:07:37 +08:00
dns_forward_max: 150
cache_size: 1000
Parameterize several dependency endpoints so that they can be overridden with internal mirrors. Signed-off-by: Chad Swenson <chadswen@gmail.com>
2016-10-15 05:46:44 +08:00
# Versions
dnsmasq_version: 2.72
# Images
dnsmasq_image_repo: "andyshinn/dnsmasq"
Add new var skip_dnsmasq_k8s If skip_dnsmasq is set, it will still not set up dnsmasq k8s pod. This enables independent setup of resolvconf section before kubelet is up.
2016-10-26 22:56:15 +08:00
dnsmasq_image_tag: "{{ dnsmasq_version }}"
Tune dnsmasq/kubedns limits, replicas, logging * Add dns_replicas, dns_memory/cpu_limit/requests vars for dns related apps. * When kube_log_level=4, log dnsmasq queries as well. * Add log level control for skydns (part of kubedns app). * Add limits/requests vars for dnsmasq (part of kubedns app) and dnsmasq daemon set. * Drop string defaults for kube_log_level as it is int and is defined in the global vars as well. * Add docs Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
2016-11-25 18:33:39 +08:00
# Limits for dnsmasq/kubedns apps
dns_cpu_limit: 100m
dns_memory_limit: 170Mi
Significantly reduce memory requirements Canal runs more pods and upgrades need a bit of extra room to load new pods in and get the old ones out.
2017-03-23 17:11:30 +08:00
dns_cpu_requests: 40m
Add autoscalers for dnsmasq and kubedns By default kubedns and dnsmasq scale when installed. Dnsmasq is no longer a daemonset. It is now a deployment. Kubedns is no longer a replicationcluster. It is now a deployment. Minimum replicas is two (to enable rolling updates). Reduced memory erquirements for dnsmasq and kubedns
2017-02-28 22:56:00 +08:00
dns_memory_requests: 50Mi
# Autoscaler parameters
dnsmasq_nodes_per_replica: 10
dnsmasq_min_replicas: 1