_images.tpl

{{/*
Return the proper image name
{{ include "common.images.image" ( dict "imageRoot" .Values.path.to.the.image "global" .Values.global ) }}
*/}}
{{- define "common.images.image" -}}
{{- $registryName := .imageRoot.registry -}}
{{- $repositoryName := .imageRoot.repository -}}
{{- $separator := ":" -}}
{{- $termination := .imageRoot.tag | toString -}}
{{- if .global }}
    {{- if .global.imageRegistry }}
     {{- $registryName = .global.imageRegistry -}}
    {{- end -}}
{{- end -}}
{{- if .imageRoot.digest }}
    {{- $separator = "@" -}}
    {{- $termination = .imageRoot.digest | toString -}}
{{- end -}}
{{- if $registryName }}
    {{- printf "%s/%s%s%s" $registryName $repositoryName $separator $termination -}}
{{- else -}}
    {{- printf "%s%s%s"  $repositoryName $separator $termination -}}
{{- end -}}
{{- end -}}

{{/*
Return the proper Image Registry Secret Names evaluating values as templates
{{ include "common.images.renderPullSecrets" ( dict "images" (list .Values.path.to.the.image1, .Values.path.to.the.image2) "context" $) }}
*/}}
{{- define "common.images.renderPullSecrets" -}}
  {{- $pullSecrets := list }}
  {{- $context := .context }}

  {{- if $context.Values.global }}
    {{- range $context.Values.global.imagePullSecrets -}}
      {{- if kindIs "map" . -}}
        {{- $pullSecrets = append $pullSecrets (include "common.tplvalues.render" (dict "value" .name "context" $context)) -}}
      {{- else -}}
        {{- $pullSecrets = append $pullSecrets (include "common.tplvalues.render" (dict "value" . "context" $context)) -}}
      {{- end -}}
    {{- end -}}
  {{- end -}}

  {{- range .images -}}
    {{- range .pullSecrets -}}
      {{- if kindIs "map" . -}}
        {{- $pullSecrets = append $pullSecrets (include "common.tplvalues.render" (dict "value" .name "context" $context)) -}}
      {{- else -}}
        {{- $pullSecrets = append $pullSecrets (include "common.tplvalues.render" (dict "value" . "context" $context)) -}}
      {{- end -}}
    {{- end -}}
  {{- end -}}

  {{- if (not (empty $pullSecrets)) }}
imagePullSecrets:
    {{- range $pullSecrets | uniq }}
  - name: {{ . }}
    {{- end }}
  {{- end }}
{{- end -}}

{{/*
Checks for the imagePullPolicy
*/}}
{{- define "common.imagePullPolicy" -}}
  {{- if .Values.global.imagePullPolicy -}}
    {{- .Values.global.imagePullPolicy -}}
  {{- else -}}
    {{- default .Values.imagePullPolicy -}}
  {{- end -}}
{{- end -}}


{{/*
Return the proper Docker Image Registry Secret Names
*/}}
{{- define "common.images.imagePullSecrets" -}}
{{- include "common.images.renderPullSecrets" (dict "images" list "global" .Values.global) | default list| toJson | indent 1 -}}
{{- end -}}