c12s-kubespray/roles/dnsmasq/templates/01-kube-dns.conf.j2
Sergii Golovatiuk eed32f9838 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 11:47:37 +01:00

34 lines
885 B
Django/Jinja

#Listen on localhost
bind-interfaces
listen-address=0.0.0.0
addn-hosts=/etc/hosts
strict-order
# Forward k8s domain to kube-dns
server=/{{ dns_domain }}/{{ skydns_server }}
# Reply NXDOMAIN to bogus domains requests like com.cluster.local.cluster.local
local=/{{ bogus_domains }}
#Set upstream dns servers
{% if upstream_dns_servers is defined %}
{% for srv in upstream_dns_servers %}
server={{ srv }}
{% endfor %}
no-resolv
{% elif resolvconf_mode == 'host_resolvconf' %}
{# The default resolver is only needed when the hosts resolv.conf was modified by us. If it was not modified, we can rely on dnsmasq to reuse the systems resolv.conf #}
server={{ default_resolver }}
no-resolv
{% endif %}
{% if kube_log_level == '4' %}
log-queries
{% endif %}
bogus-priv
no-negcache
cache-size={{ cache_size }}
dns-forward-max={{ dns_forward_max }}
max-cache-ttl=10
max-ttl=20
log-facility=-