Duplicating the api-service dependency introduces a maintenance risk. If the version of the api-service subchart changes, it will need to be updated in two places, which is error-prone. While this is a common Helm pattern for deploying multiple instances of a subchart, it's important to be aware of this potential for inconsistency.

The logic in these new helper templates can be significantly simplified and made more idiomatic. The api-service.scheduleType helper uses printf incorrectly, and both helpers can be made more concise by using the default function.

{{- define "api-service.scheduleType" -}}
    {{- .Values.scheduleType | default "k8s" -}}
{{ end }}

{{- define "api-service.qps" -}}
{{- .Values.qps | default "10" -}}
{{- end }}

This if/else block for the --leader-elect flag is a bit verbose. You can achieve the same result more concisely by embedding the value directly into the argument string.

            - --leader-elect={{ .Values.leaderElect }}

The template uses .Values.serviceDomainSuffix, but this value is not defined in deploy/controller/values.yaml. If this value is not provided during Helm installation, template rendering will fail. It's crucial to provide a default value. The best practice is to add serviceDomainSuffix: "" to your values.yaml. As a defensive measure in the template, you can use the default function to prevent errors.

              value: {{ .Values.serviceDomainSuffix | default "" | quote }}

There are a couple of improvements to be made here for style and whitespace control. It's a Helm convention to include a space after if (i.e., {{ if ... }}). Additionally, using {{- and -}} helps control newlines, preventing extra blank lines in the rendered YAML when the conditions are false.

            {{- if .Values.deploy.templateId }}
            - --template-id={{ .Values.deploy.templateId }}
            {{- end }}
            {{- if .Values.deploy.callbackURL }}
            - --callback-url={{ .Values.deploy.callbackURL }}
            {{- end }}

There is an inconsistency in how sandboxNamespace is accessed across subcharts. This chart (envhub) uses a global value (.Values.global.sandboxNamespace), while the controller chart uses a local value (.Values.sandboxNamespace). This can lead to configuration errors and makes the umbrella chart difficult to manage. For shared configuration like this, you should standardize on using a single global value defined in the parent chart's values.yaml and accessed via .Values.global.sandboxNamespace in all subcharts.

This file defines the same oss-secret twice, once for each namespace. This leads to significant code duplication and is a maintenance concern. If the secret's structure changes, you'll have to update it in two places.

A better approach is to define a helper template in _helpers.tpl for the secret data and then include it in both secret definitions. This follows the Don't Repeat Yourself (DRY) principle.

For example, in deploy/envhub/templates/_helpers.tpl:

{{- define "envhub.ossSecretData" -}}
# OSS credentials (base64 encoded)
...
{{- end -}}

And then in secret.yaml:

...
data:
{{ include "envhub.ossSecretData" . | nindent 2 }}
---
...
data:
{{ include "envhub.ossSecretData" . | nindent 2 }}