使用 Helmfile 模板值文件并获得 "error during tpl function execution"

Question

我正在使用 helmfile 安装我的 Helm 图表和其他依赖图表。我想在值文件中使用模板值。
从 this 已解决的问题来看，似乎支持值文件中的模板。但是，我使用以下文件进行了测试： helmfile.yaml:

environments:
  default:
    values:
    - my:
        port: 8080
---
repositories:
  - name: incubator
    url: https://kubernetes-charts-incubator.storage.googleapis.com
releases:
- name: haproxy-ingress
  namespace: haproxy-ingress
  chart: incubator/haproxy-ingress
  version: 0.0.27
  values:
  - values.yaml

values.yaml:

controller:
  tcp:
    1936: "my_namespace/my-service:{{ .Values.my.port }}"

如果我运行 helmfile template，我会得到

COMBINED OUTPUT:
  Error: template: haproxy-ingress/templates/tcp-configmap.yaml:16:31: executing "haproxy-ingress/templates/tcp-configmap.yaml" at <tpl $value $>: error calling tpl: error during tpl function execution for "my_namespace/my-service:{{ .Values.my.port }}": template: haproxy-ingress/templates/tcp-configmap.yaml:1:34: executing "haproxy-ingress/templates/tcp-configmap.yaml" at <.Values.my.port>: nil pointer evaluating interface {}.port
  Use --debug flag to render out invalid YAML

如果我内联这些值，它会起作用

environments:
  default:
    values:
    - my:
        port: 8080
---
repositories:
  - name: incubator
    url: https://kubernetes-charts-incubator.storage.googleapis.com
releases:
- name: haproxy-ingress
  namespace: haproxy-ingress
  chart: incubator/haproxy-ingress
  version: 0.0.27
  values:
  - controller:
      tcp:
        1936: "my_namespace/my-service:{{ .Values.my.port }}"

Answer 1

我得到了答案。来自 helmfile 的文档，

You can use go's text/template expressions in helmfile.yaml and values.yaml.gotmpl (templated helm values files). values.yaml references will be used verbatim. In other words: for value files ending with .gotmpl, template expressions will be rendered for plain value files (ending in .yaml), content will be used as-is

因此，对于这种情况，values.yaml 应该重命名为 values.yaml.gotmpl 以便 helmfile 将文件解释为 go 模板。

使用 Helmfile 模板值文件并获得 "error during tpl function execution"

Templating value file using Helmfile and got "error during tpl function execution"

kubernetes-helm

helmfile