初始化功能函数库

templates/_labels.tpl

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+{{/*
+获取 K8s 标准标签
+调用：
+  {{ include "common.labels.standard" (dict "customLabels" .Values.commonLabels "context" $) -}}
+*/}}
+{{- define "common.labels.standard" -}}
+{{- if and (hasKey . "customLabels") (hasKey . "context") -}}
+{{- $default := dict "app.kubernetes.io/name" (include "common.names.name" .context) "helm.sh/chart" (include "common.names.chart" .context) "app.kubernetes.io/instance" .context.Release.Name "app.kubernetes.io/managed-by" .context.Release.Service -}}
+{{- with .context.Chart.AppVersion -}}
+{{- $_ := set $default "app.kubernetes.io/version" . -}}
+{{- end -}}
+{{ template "common.tplvalues.merge" (dict "values" (list .customLabels $default) "context" .context) }}
+{{- else -}}
+app.kubernetes.io/name: {{ include "common.names.name" . }}
+helm.sh/chart: {{ include "common.names.chart" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- with .Chart.AppVersion }}
+app.kubernetes.io/version: {{ . | quote }}
+{{- end -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+获取不可变标签，如：`deploy.spec.selector.matchLabels`、 `svc.spec.selector`
+调用：
+  {{ include "common.labels.matchLabels" (dict "customLabels" .Values.podLabels "context" $) -}}
+
+为了防止破坏部署、服务，规避将所有自定义标签遍历的添加到选择器。仅当用户在 metadata.labels
+字段中覆盖了标准标签时，才进行覆盖。
+*/}}
+{{- define "common.labels.matchLabels" -}}
+{{- if and (hasKey . "customLabels") (hasKey . "context") -}}
+{{ merge (pick (include "common.tplvalues.render" (dict "value" .customLabels "context" .context) | fromYaml) "app.kubernetes.io/name" "app.kubernetes.io/instance") (dict "app.kubernetes.io/name" (include "common.names.name" .context) "app.kubernetes.io/instance" .context.Release.Name ) | toYaml }}
+{{- else -}}
+app.kubernetes.io/name: {{ include "common.names.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end -}}
+{{- end -}}