openstack-helm-infra/helm-toolkit/templates/snippets/_values_template_renderer.tpl

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{{/*
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/}}
{{/*
abstract: |
Renders out configuration sections into a format suitable for incorporation
into a config-map. Allowing various forms of input to be rendered out as
appropriate.
values: |
conf:
inputs:
- foo
- bar
some:
config_to_render: |
#We can use all of gotpl here: eg macros, ranges etc.
{{ include "helm-toolkit.utils.joinListWithComma" .Values.conf.inputs }}
config_to_complete:
#here we can fill out params, but things need to be valid yaml as input
'{{ .Release.Name }}': '{{ printf "%s-%s" .Release.Namespace "namespace" }}'
static_config:
#this is just passed though as yaml to the configmap
foo: bar
usage: |
{{- $envAll := . }}
---
apiVersion: v1
kind: ConfigMap
metadata:
name: application-etc
data:
{{- include "helm-toolkit.snippets.values_template_renderer" (dict "envAll" $envAll "template" .Values.conf.some.config_to_render "key" "config_to_render.conf") | indent 2 }}
{{- include "helm-toolkit.snippets.values_template_renderer" (dict "envAll" $envAll "template" .Values.conf.some.config_to_complete "key" "config_to_complete.yaml") | indent 2 }}
{{- include "helm-toolkit.snippets.values_template_renderer" (dict "envAll" $envAll "template" .Values.conf.some.static_config "key" "static_config.yaml") | indent 2 }}
return: |
---
apiVersion: v1
kind: ConfigMap
metadata:
name: application-etc
data:
config_to_render.conf: |
#We can use all of gotpl here: eg macros, ranges etc.
foo,bar
config_to_complete.yaml: |
'RELEASE-NAME': 'default-namespace'
static_config.yaml: |
foo: bar
*/}}
{{- define "helm-toolkit.snippets.values_template_renderer" -}}
{{- $envAll := index . "envAll" -}}
{{- $template := index . "template" -}}
{{- $key := index . "key" -}}
{{- $format := index . "format" | default "configMap" -}}
{{- with $envAll -}}
{{- $templateRendered := tpl ( $template | toYaml ) . }}
{{- if eq $format "Secret" }}
{{- if hasPrefix "|\n" $templateRendered }}
{{ $key }}: {{ regexReplaceAllLiteral "\n " ( $templateRendered | trimPrefix "|\n" | trimPrefix " " ) "\n" | b64enc }}
{{- else }}
{{ $key }}: {{ $templateRendered | b64enc }}
{{- end -}}
{{- else }}
{{- if hasPrefix "|\n" $templateRendered }}
{{ $key }}: |
{{ regexReplaceAllLiteral "\n " ( $templateRendered | trimPrefix "|\n" | trimPrefix " " ) "\n" | indent 2 }}
{{- else }}
{{ $key }}: |
{{ $templateRendered | indent 2 }}
{{- end -}}
{{- end -}}
{{- end -}}
{{- end -}}