This section of the guide covers best practices for
dependencies declared in
Where possible, use version ranges instead of pinning to an exact version. The suggested default is to use a patch-level version match:
This will match version
1.2.3 and any patches to that release. In other words,
~1.2.3 is equivalent to
>= 1.2.3, < 1.3.0
For the complete version matching syntax, please see the semver documentation
Where possible, use
https:// repository URLs, followed by
If the repository has been added to the repository index file, the repository name can be used as an alias of URL. Use
@ followed by repository names.
File URLs (
file://...) are considered a “special case” for charts that are assembled by a fixed deployment pipeline. Charts that use
file:// are not allowed in the official Helm repository.
Conditions and Tags
Conditions or tags should be added to any dependencies that are optional.
The preferred form of a condition is:
somechart is the chart name of the dependency.
When multiple subcharts (dependencies) together provide an optional or swappable feature, those charts should share the same tags.
For example, if both
memcached together provided performance optimizations for the main app in the chart, and were required to both be present when that feature is enabled, then they might both have a
tags section like this:
tags: - webaccelerator
This allows a user to turn that feature on and off with one tag.