K
Q

Set value in dependency of Helm chart

April 18, 2019

I want to use the postgresql chart as a requirements for my Helm chart.

My

requirements.yaml
file hence looks like this:

dependencies:
  - name: "postgresql"

    version: "3.10.0"

    repository: "@stable"

In the postgreSQL Helm chart I now want to set the username with the property

postgresqlUsername
(see https://github.com/helm/charts/tree/master/stable/postgresql for all properties).

Where do I have to specify this property in my project so that it gets propagated to the postgreSQL dependency?

-- Harold L. Brown
postgresql
kubernetes
google-kubernetes-engine
kubernetes-helm

1 Answer

October 1, 2019

As described in https://v2.helm.sh/docs/chart_template_guide/#subcharts-and-global-values, in your parent (i.e. not the dependency) chart's

values.yaml
file, have a section that contains

postgresql:

  postgresUsername: ....

  postgresPassword: ....
  ...

That is, all values under the

postgresql
key will override the child (
postgresql
) chart's
values.yaml
values. Note that if you have aliased the
postgresql
dependency chart to another name in your
requirements.yaml
, you should use that other name instead of
postgresql
.

edit: The corresponding article in v3 is here https://helm.sh/docs/chart_template_guide/subcharts_and_globals/

-- jhanschoo
Source: StackOverflow