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feat: add support for coredns_affinity #11994

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feat: add support for coredns_affinity #11994

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16 changes: 16 additions & 0 deletions roles/kubernetes-apps/ansible/defaults/main.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,22 @@ dns_prevent_single_point_failure: "{{ 'true' if dns_min_replicas | int > 1 else
enable_coredns_reverse_dns_lookups: true
coredns_ordinal_suffix: ""
# dns_extra_tolerations: [{effect: NoSchedule, operator: "Exists"}]
coredns_affinity:
podAntiAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
- topologyKey: "kubernetes.io/hostname"
labelSelector:
matchLabels:
k8s-app: kube-dns{{ coredns_ordinal_suffix }}
nodeAffinity:
preferredDuringSchedulingIgnoredDuringExecution:
- weight: 100
preference:
matchExpressions:
- key: node-role.kubernetes.io/control-plane
operator: In
values:
- ""
coredns_deployment_nodeselector: "kubernetes.io/os: linux"
coredns_default_zone_cache_block: |
cache 30
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18 changes: 3 additions & 15 deletions roles/kubernetes-apps/ansible/templates/coredns-deployment.yml.j2
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Expand Up @@ -38,21 +38,9 @@ spec:
{{ dns_extra_tolerations | list | to_nice_yaml(indent=2) | indent(8) }}
{% endif %}
affinity:
podAntiAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
- topologyKey: "kubernetes.io/hostname"
labelSelector:
matchLabels:
k8s-app: kube-dns{{ coredns_ordinal_suffix }}
nodeAffinity:
preferredDuringSchedulingIgnoredDuringExecution:
- weight: 100
preference:
matchExpressions:
- key: node-role.kubernetes.io/control-plane
operator: In
values:
- ""
{% if coredns_affinity is defined %}
{{ coredns_affinity | to_nice_yaml(indent=2) | indent(8) }}
{% endif %}
containers:
- name: coredns
image: "{{ coredns_image_repo }}:{{ coredns_image_tag }}"
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