helm-charts/charts/library/common/templates/lib/pod/fields/_initContainers.tpl
2024-08-27 14:47:25 +02:00

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{{- /*
Returns the value for initContainers
*/ -}}
{{- define "bjw-s.common.lib.pod.field.initContainers" -}}
{{- $rootContext := .ctx.rootContext -}}
{{- $controllerObject := .ctx.controllerObject -}}
{{- /* Default to empty list */ -}}
{{- $graph := dict -}}
{{- $containers := list -}}
{{- /* Fetch configured containers for this controller */ -}}
{{- $renderedContainers := dict -}}
{{- range $key, $containerValues := $controllerObject.initContainers -}}
{{- /* Enable container by default, but allow override */ -}}
{{- $containerEnabled := true -}}
{{- if hasKey $containerValues "enabled" -}}
{{- $containerEnabled = $containerValues.enabled -}}
{{- end -}}
{{- if $containerEnabled -}}
{{- /* Create object from the container values */ -}}
{{- $containerObject := (include "bjw-s.common.lib.container.valuesToObject" (dict "rootContext" $rootContext "controllerObject" $controllerObject "containerType" "init" "id" $key "values" $containerValues)) | fromYaml -}}
{{- /* Perform validations on the Container before rendering */ -}}
{{- include "bjw-s.common.lib.container.validate" (dict "rootContext" $ "controllerObject" $controllerObject "containerObject" $containerObject) -}}
{{- /* Generate the Container spec */ -}}
{{- $renderedContainer := include "bjw-s.common.lib.container.spec" (dict "rootContext" $rootContext "controllerObject" $controllerObject "containerObject" $containerObject) | fromYaml -}}
{{- $_ := set $renderedContainers $key $renderedContainer -}}
{{- /* Determine the Container order */ -}}
{{- if empty (dig "dependsOn" nil $containerValues) -}}
{{- $_ := set $graph $key ( list ) -}}
{{- else if kindIs "string" $containerValues.dependsOn -}}
{{- $_ := set $graph $key ( list $containerValues.dependsOn ) -}}
{{- else if kindIs "slice" $containerValues.dependsOn -}}
{{- $_ := set $graph $key $containerValues.dependsOn -}}
{{- end -}}
{{- end -}}
{{- end -}}
{{- /* Process graph */ -}}
{{- $args := dict "graph" $graph "out" list -}}
{{- include "bjw-s.common.lib.kahn" $args -}}
{{- range $name := $args.out -}}
{{- $containerItem := get $renderedContainers $name -}}
{{- $containers = append $containers $containerItem -}}
{{- end -}}
{{- if not (empty $containers) -}}
{{- $containers | toYaml -}}
{{- end -}}
{{- end -}}