Values dependencies

Sometimes we need to include values from another values file. In this case we can use getValues function.

helmwave.yml

project: "Example: values dependencies"
version: 0.38.0

repositories:
  - name: bitnami
    url: https://charts.bitnami.com/bitnami

.options: &options
  namespace: my-namespace
  wait: true

releases:
  - name: nginx
    <<: *options
    chart: bitnami/nginx
    values:
      - values/common.yml
      - values/nginx.yml

  - name: redis
    <<: *options
    chart: bitnami/redis
    values:
      - values/common.yml
      - values/redis.yml

values/common.yml

global:
  podLabels:
    foo: {{ now }}

values/nginx.yml

{{ $common := getValues "values/common.yml" }}

podLabels:
  {{- range $key, $value := $common.global.podLabels }}
  {{ $key }}: {{ $value }}
  {{- end }}

values/redis.yml

{{ $common := getValues "values/common.yml" }}

master:
  podLabels:
    {{- range $key, $value := $common.global.podLabels }}
    {{ $key }}: {{ $value }}
    {{- end }}

In this example we have values-common.yml to store some common values independently of the chart. It is defined as a values file for each release. We use getValues function to reference these values.

Rendered values files will look like that:

nginx/common.yml

global:
  podLabels:
    foo: 2024-04-29 19:06:12.13501 +0400 +04 m=+0.142733501

nginx/nginx.yml

podLabels:
  foo: 2024-04-29 19:06:12.13501 +0400 +04 m=+0.142733501

redis/common.yml

global:
  podLabels:
    foo: 2024-04-29 19:06:12.135011 +0400 +04 m=+0.142734251

redis/redis.yml

master:
  podLabels:
    foo: 2024-04-29 19:06:12.135011 +0400 +04 m=+0.142734251