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Tune dnsmasq/kubedns limits, replicas, logging

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* 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>
This commit is contained in:
Bogdan Dobrelya
2016-11-25 11:33:39 +01:00
parent 6d29a5981c
commit 2d18e19263
11 changed files with 47 additions and 12 deletions
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7
roles/kubernetes-apps/ansible/defaults/main.yml
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@@ -3,6 +3,13 @@ kubedns_version: 1.7
kubednsmasq_version: 1.3
exechealthz_version: 1.1
# Limits for dnsmasq/kubedns apps
dns_cpu_limit: 100m
dns_memory_limit: 170Mi
dns_cpu_requests: 70m
dns_memory_requests: 70Mi
dns_replicas: 1
# Images
kubedns_image_repo: "gcr.io/google_containers/kubedns-amd64"
kubedns_image_tag: "{{ kubedns_version }}"