91 lines
2.8 KiB
Smarty
91 lines
2.8 KiB
Smarty
{{/* Returns DNS Policy and Config */}}
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{{/* Call this template:
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{{ include "tc.v1.common.lib.pod.dns" (dict "rootCtx" $ "objectData" $objectData) }}
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rootCtx: The root context of the chart.
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objectData: The object data to be used to render the Pod.
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*/}}
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{{- define "tc.v1.common.lib.pod.dns" -}}
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{{- $rootCtx := .rootCtx -}}
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{{- $objectData := .objectData -}}
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{{- $policy := "ClusterFirst" -}}
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{{- $config := dict -}}
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{{/* Initialize from the "global" option */}}
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{{- with $rootCtx.Values.podOptions.dnsPolicy -}}
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{{- $policy = . -}}
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{{- end -}}
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{{- with $rootCtx.Values.podOptions.dnsConfig -}}
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{{- $config = . -}}
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{{- end -}}
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{{/* Override with pod's option */}}
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{{- with $objectData.podSpec.dnsPolicy -}}
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{{- $policy = . -}}
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{{- end -}}
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{{- with $objectData.podSpec.dnsConfig -}}
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{{- $config = . -}}
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{{- end -}}
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{{/* Expand policy */}}
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{{- $policy = (tpl $policy $rootCtx) -}}
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{{/* If hostNetwork is enabled, then use ClusterFirstWithHostNet */}}
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{{- $hostNet := include "tc.v1.common.lib.pod.hostNetwork" (dict "rootCtx" $rootCtx "objectData" $objectData) -}}
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{{- if or (and (kindIs "string" $hostNet) (eq $hostNet "true")) (and (kindIs "bool" $hostNet) $hostNet) -}}
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{{- $policy = "ClusterFirstWithHostNet" -}}
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{{- end -}}
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{{- $policies := (list "ClusterFirst" "ClusterFirstWithHostNet" "Default" "None") -}}
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{{- if not (mustHas $policy $policies) -}}
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{{- fail (printf "Expected <dnsPolicy> to be one of [%s], but got [%s]" (join ", " $policies) $policy) -}}
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{{- end -}}
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{{/* When policy is set to None all keys are required */}}
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{{- if eq $policy "None" -}}
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{{- range $key := (list "nameservers" "searches" "options") -}}
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{{- if not (get $config $key) -}}
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{{- fail (printf "Expected non-empty <dnsConfig.%s> with <dnsPolicy> set to [None]." $key) -}}
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{{- end -}}
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{{- end -}}
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{{- end }}
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dnsPolicy: {{ $policy }}
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{{- if or $config.nameservers $config.options $config.searches }}
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dnsConfig:
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{{- with $config.nameservers -}}
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{{- if gt (len .) 3 -}}
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{{- fail (printf "Expected no more than [3] <dnsConfig.nameservers>, but got [%v]" (len .)) -}}
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{{- end }}
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nameservers:
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{{- range . }}
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- {{ tpl . $rootCtx }}
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{{- end -}}
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{{- end -}}
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{{- with $config.searches -}}
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{{- if gt (len .) 6 -}}
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{{- fail (printf "Expected no more than [6] <dnsConfig.searches>, but got [%v]" (len .)) -}}
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{{- end }}
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searches:
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{{- range . }}
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- {{ tpl . $rootCtx }}
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{{- end -}}
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{{- end -}}
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{{- with $config.options }}
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options:
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{{- range . }}
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- name: {{ tpl .name $rootCtx }}
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{{- with .value }}
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value: {{ tpl . $rootCtx | quote }}
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{{- end -}}
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{{- end -}}
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{{- end -}}
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{{- end -}}
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{{- end -}}
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