I am working with helm.
I have a condtion where a variable in values.yaml ( variable name is db) will get conditional value (either oracle or postgres).
In the same values.yaml i have two sections containing respective properties for oracle & postgres.
How can I use the variable in db in nested manner? I want to avoid if else blocks.
I tried {{tpl .Values.{{tpl .Values.db .}}.port .}}. but it doesn't work.
Please find below code snippet
Values.yaml
db: postgres
postgres:
port:5432
oracle:
port:1521templatefile.yaml
port: "{{tpl .Values.{{tpl .Values.db .}}.port .}}"You can't nest the {{ ... }} blocks in the Helm templating language.
You can set a variable to the value of the inner "template" or just invoke it directly as an expression
{{- $dbname := tpl .Values.db . -}}
{{- printf "%s" (tpl .Values.db .) -}}To actually use this as a field in the .Values structure, you need the text/template index function.
{{- $settings := index .Values (tpl .Values.db .) -}}
port: "{{ $settings.port }}"