helm 常用语法

values.yaml

image:
  repoprefix: harbor.com/library
  repository: nginx
  pullPolicy: IfNotPresent
  tag: "0.1.1"

---
{{- $image := printf "%s/%s:%s" .Values.image.repoprefix .Values.image.repository  .Values.image.tag }}
apiVersion: apps/v1
kind: Deployment
metadata:
  #......
  template:
    #......
    spec:
      containers:
        - name: {{ .Chart.Name }}
          image: {{ $image }}

key: a
data:
  a:
    a: "aaabbb"
  b:
    b: "2"
[root@k8s-master aaaaaa]# cat templates/cm.yaml 
{{- $meta := .Values.data }}
{{ $key := .Values.key }}
apiVersion: v1
kind: ConfigMap
metadata:
  name: test
  namespace: default
data:
  {{- range $k, $v := get $meta $key }}
  {{ $k }}: {{ $v }}
  {{- end }}
[root@k8s-master aaaaaa]# helm template aa . 
---
# Source: aaaaaa/templates/cm.yaml
apiVersion: v1
kind: ConfigMap
metadata:
  name: test
  namespace: default
data:
  a: aaabbb