舵机模板零指针

Question

这是我准备的模板，但会出现错误。这是我准备和打印这个头盔时遇到的错误，我无法从values.yaml文件中读取这里的字符。

virtual-service.yaml

{{ $prefix := .Values.virtualservice.prefix }}
{{ $uri := .Values.virtualservice.uri }}
apiVersion: v1
items:
- apiVersion: networking.istio.io/v1alpha3
  kind: VirtualService
  metadata:
    name: {{ .Values.deploy.svc.name }}-virtual-service
    namespace: {{ .Values.deploy.namespace }}
  spec:
    gateways:
    - istio-system/istio-gateway
    hosts:
    - {{ .Values.ingress.hosts }}
    http:
    - match:
      - uri:
          prefix: {{ $prefix }}
      rewrite:
        uri: {{ $uri }}
      route:
      - destination:
          host: {{ .Values.deploy.svc.name }}-service
          port:
            number: 80

和values.yaml

virtualservice:
  enabled: true
  prefix: v1
  uri: /

Helm版本：

Client: &version.Version{SemVer:"v2.15.2", GitCommit:"8dce272473e5f2a7bf58ce79bb5c3691db54c96b", GitTreeState:"clean"}
Server: &version.Version{SemVer:"v2.15.2", GitCommit:"8dce272473e5f2a7bf58ce79bb5c3691db54c96b", GitTreeState:"clean"}

和误差

Error: render error in "helm/templates/virtual-service.yaml": template: helm/templates/virtual-service.yaml:1:21: executing "helm/templates/virtual-service.yaml" at <.Values.virtualservice.prefix>: nil pointer evaluating interface {}.prefix```

Answer 1

Helm抱怨未解决的变量virtualservice.uri (在第一行中)。您需要将其添加到values.yaml或将其传递给舵机调用，例如：

helm template [NAME] [CHART] --set virtualservice.uri="whatever"