Helm Chart requirements.yaml

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Revision as of 00:06, 14 September 2019 by Ovidiu (Talk | contribs) (Overview)

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External

Internal

Overview

requirements.yaml is an optional metadata file that contains the immediate dependencies for the chart, expressed as a list of name, version and repository URL tuples. Note that the immediate dependencies might have dependencies on their own, which are not expressed in the chart's requirements.yaml file.

Helm manages those as well, and after they are discovered, they are written in requirements.lock file. For a general discussion on chart dependencies, see Helm Dependencies.

Structure

dependencies:
- name: blue
  version: 1.2.3
  repository: http://example.com/charts
  alias: something
  condition: something.enabled, global. something.enabled
  tags:
  - front-end
  - big    
- name: green
  version 3.2.1
  repository: http://another.example.com/charts

Example

dependencies:
  - name: postgresql
    version: 6.3.2
    repository: https://kubernetes-charts.storage.googleapis.com

requirements.lock

Transitive Dependencies and requirements.lock File

Fields

name

The dependency chart name.

version

The dependency chart version.

repository

The dependency chart repository full URL.

The most common case is to specify an on-line repository, as such:

- name: postgresql
    version: 6.3.2
    repository: https://kubernetes-charts.storage.googleapis.com

In this case, helm repo add must be used to add the repository locally before using the dependent chart.

However, we can refer to dependencies that exist on the local filesystem, using an absolute path file URL or a relative path URL, as such:

- name: my-chart
    version: 1.0.0
    repository: file:///tmp/charts/my-chart
- name: my-chart
    version: 1.0.0
    repository: file://../my-chart

Note that when a relative path is used, it is considered relative to the dependent chart root directory.

In case the dependency chart is not archived, but exist as an exploded directory on the file system, the file:// URL must point to the root directory of the chart - the one that contains Chart.yaml.

alias

TODO: https://helm.sh/docs/developing_charts/#alias-field-in-requirements-yaml

condition

TODO:https://helm.sh/docs/developing_charts/#tags-and-condition-fields-in-requirements-yaml

tags

TODO: https://helm.sh/docs/developing_charts/#tags-and-condition-fields-in-requirements-yaml