c12s-kubespray/roles/kubernetes-apps/ansible/templates/coredns-config.yml.j2
emiran-orange 5c25b57989
Ability to define options for DNS upstream servers (#9311)
* Ability to define options for DNS upstream servers

* Doc and sample inventory vars
2022-11-08 06:44:25 -08:00

74 lines
2.1 KiB
Django/Jinja

---
apiVersion: v1
kind: ConfigMap
metadata:
name: coredns
namespace: kube-system
labels:
addonmanager.kubernetes.io/mode: EnsureExists
data:
Corefile: |
{% if coredns_external_zones is defined and coredns_external_zones|length > 0 %}
{% for block in coredns_external_zones %}
{{ block['zones'] | join(' ') }} {
log
errors
{% if block['rewrite'] is defined and block['rewrite']|length > 0 %}
{% for rewrite_match in block['rewrite'] %}
rewrite {{ rewrite_match }}
{% endfor %}
{% endif %}
forward . {{ block['nameservers'] | join(' ') }}
loadbalance
cache {{ block['cache'] | default(5) }}
reload
{% if dns_etchosts | default(None) %}
hosts /etc/coredns/hosts {
fallthrough
}
{% endif %}
}
{% endfor %}
{% endif %}
.:53 {
errors
health {
lameduck 5s
}
ready
kubernetes {{ dns_domain }} {% if enable_coredns_reverse_dns_lookups %}in-addr.arpa ip6.arpa {% endif %}{
pods insecure
{% if enable_coredns_k8s_endpoint_pod_names %}
endpoint_pod_names
{% endif %}
{% if enable_coredns_reverse_dns_lookups %}
fallthrough in-addr.arpa ip6.arpa
{% endif %}
}
prometheus :9153
forward . {{ upstream_dns_servers|join(' ') if upstream_dns_servers is defined and upstream_dns_servers|length > 0 else '/etc/resolv.conf' }} {
prefer_udp
max_concurrent 1000
{% if dns_upstream_forward_extra_opts is defined %}
{% for optname, optvalue in dns_upstream_forward_extra_opts.items() %}
{{ optname }} {{ optvalue }}
{% endfor %}
{% endif %}
}
{% if enable_coredns_k8s_external %}
k8s_external {{ coredns_k8s_external_zone }}
{% endif %}
{{ coredns_default_zone_cache_block | indent(width=8, first=False) }}
loop
reload
loadbalance
{% if dns_etchosts | default(None) %}
hosts /etc/coredns/hosts {
fallthrough
}
{% endif %}
}
{% if dns_etchosts | default(None) %}
hosts: |
{{ dns_etchosts | indent(width=4, first=False) }}
{% endif %}