Helm Templates: Difference between revisions
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* [[Helm Concepts#Templates|Helm Concepts]] | * [[Helm Concepts#Templates|Helm Concepts]] | ||
=Overview= | |||
Templates are files living under a chart's [[Helm_Concepts#templates.2F_Directory|templates/ directory]]. | |||
=Built-in Objects= | =Built-in Objects= | ||
Revision as of 02:05, 29 August 2019
External
- The Chart Template Developer’s Guide https://helm.sh/docs/chart_template_guide/#the-chart-template-developer-s-guide
Internal
Overview
Templates are files living under a chart's templates/ directory.
Built-in Objects
Chart
Exposes all contents of Chart.yaml. An existing field is available as (note leading dot) .Chart.<UpperCasedFirstLetterFieldName>.
Example:
{{ .Chart.Name }}
{{ .Chart.Version }}
Values
Release
Release.Name
Exposes the release name:
{{ .Release.Name }}
Release.Revision
Exposes the release revision:
{{ .Release.Revision }}
Release.Time
Exposes the time of the release:
{{ .Release.Time }}
Release.Namespace
Exposes the namespace to be released info, if the manifest does not override:
{{ .Release.Namespace }}
Release.IsUpgrade
This is set to true if the current operation is an upgrade or rollback.
{{ .Release.IsUpgrade }}
Release.IsInstall
This is set to true if the current operation is an install.
{{ .Release.IsInstall }}
Release.Service
Exposes the releasing service - always Tiller
Files
Capabilities
Template
TODO
Template Comments
# This is a comment
{{- /*
This is another comment
*/ -}}
TODO
- https://helm.sh/docs/chart_template_guide/#the-chart-template-developer-s-guide
- https://helm.sh/docs/chart_best_practices/#templates
- https://helm.sh/docs/developing_charts/#templates-and-values
- https://helm.sh/docs/developing_charts/#know-your-template-functions
- https://helm.sh/docs/developing_charts/#quote-strings-don-t-quote-integers
- https://helm.sh/docs/developing_charts/#using-the-include-function
- https://helm.sh/docs/developing_charts/#using-the-required-function
- https://helm.sh/docs/developing_charts/#using-the-tpl-function
- https://helm.sh/docs/developing_charts/#creating-image-pull-secrets
- https://helm.sh/docs/developing_charts/#automatically-roll-deployments-when-configmaps-or-secrets-change
- https://helm.sh/docs/developing_charts/#tell-tiller-not-to-delete-a-resource
- https://helm.sh/docs/developing_charts/#using-partials-and-template-includes
- https://helm.sh/docs/chart_best_practices/#pods-and-podtemplates
- https://helm.sh/docs/chart_best_practices/#images
- https://helm.sh/docs/chart_best_practices/#imagepullpolicy
- https://helm.sh/docs/chart_best_practices/#podtemplates-should-declare-selectors