更新模板中函数备注信息

templates/_warnings.tpl

@@ -1,5 +1,5 @@
 {{/*
-使用滚动 TAG 时的警告信息。
+使用滚动 TAG 时的警告信息（如：latest）。
 调用：
   {{ include "common.warnings.rollingTag" .Values.path.to.the.imageRoot }}
 */}}
@@ -9,3 +9,67 @@
 WARNING: Rolling tag detected ({{ .repository }}:{{ .tag }}), please note that it is strongly recommended to avoid using rolling tags in a production environment.
 {{- end }}
 {{- end -}}
+
+{{/*
+在所有部署中针对设置默认 Resource 时的警告信息。
+调用：
+  {{ include "common.warnings.resources" (dict "sections" (list "path1" "path2") context $) }}
+举例:
+  {{- include "common.warnings.resources" (dict "sections" (list "csiProvider.provider" "server" "volumePermissions" "") "context" $) }}
+The list in the example assumes that the following values exist:
+  - csiProvider.provider.resources
+  - server.resources
+  - volumePermissions.resources
+  - resources
+*/}}
+{{- define "common.warnings.resources" -}}
+{{- $values := .context.Values -}}
+{{- $printMessage := false -}}
+{{ $affectedSections := list -}}
+{{- range .sections -}}
+  {{- if eq . "" -}}
+    {{/* Case where the resources section is at the root (one main deployment in the chart) */}}
+    {{- if not (index $values "resources") -}}
+    {{- $affectedSections = append $affectedSections "resources" -}}
+    {{- $printMessage = true -}}
+    {{- end -}}
+  {{- else -}}
+    {{/* Case where the are multiple resources sections (more than one main deployment in the chart) */}}
+    {{- $keys := split "." . -}}
+    {{/* We iterate through the different levels until arriving to the resource section. Example: a.b.c.resources */}}
+    {{- $section := $values -}}
+    {{- range $keys -}}
+      {{- $section = index $section . -}}
+    {{- end -}}
+    {{- if not (index $section "resources") -}}
+      {{/* If the section has enabled=false or replicaCount=0, do not include it */}}
+      {{- if and (hasKey $section "enabled") -}}
+        {{- if index $section "enabled" -}}
+          {{/* enabled=true */}}
+          {{- $affectedSections = append $affectedSections (printf "%s.resources" .) -}}
+          {{- $printMessage = true -}}
+        {{- end -}}
+      {{- else if and (hasKey $section "replicaCount")  -}}
+        {{/* We need a casting to int because number 0 is not treated as an int by default */}}
+        {{- if (gt (index $section "replicaCount" | int) 0) -}}
+          {{/* replicaCount > 0 */}}
+          {{- $affectedSections = append $affectedSections (printf "%s.resources" .) -}}
+          {{- $printMessage = true -}}
+        {{- end -}}
+      {{- else -}}
+        {{/* Default case, add it to the affected sections */}}
+        {{- $affectedSections = append $affectedSections (printf "%s.resources" .) -}}
+        {{- $printMessage = true -}}
+      {{- end -}}
+    {{- end -}}
+  {{- end -}}
+{{- end -}}
+{{- if $printMessage }}
+
+WARNING: There are "resources" sections in the chart not set. Using "resourcesPreset" is not recommended for production. For production installations, please set the following values according to your workload needs:
+{{- range $affectedSections }}
+  - {{ . }}
+{{- end }}
++info https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/
+{{- end -}}
+{{- end -}}