英文:
How to pass YAML files while installing charts using Helm Go SDK
问题
我们正在使用Go的helm.sh/helm/v3/pkg/action包来安装Helm charts。
我们可以通过map[string]interface{}将安装值传递给Helm chart的Run函数，例如：https://stackoverflow.com/questions/45692719/samples-on-kubernetes-helm-golang-client：
rel, err := client.Run(myChart, vals)
if err != nil {
log.Println(err)
panic(err)
}
但是我们也有一个values.yaml文件，在从命令行界面安装charts时，会通过-f values.yaml进行传递。
在安装过程中（client.Run()），是否有办法通过action Go包传递这些values.yaml文件？
或者我们需要将YAML文件解析并将其作为map传递：
data2 := make(map[string]interface{})
yfile2, err := ioutil.ReadFile("./utils/values.yaml")
fmt.Println(err)
err = yaml.Unmarshal(yfile2, &data2)
英文:
We are using the Go helm.sh/helm/v3/pkg/action package to install Helm charts.
We are able to pass installation values to Helm chart Run functions via map[string]interface{}, as in <https://stackoverflow.com/questions/45692719/samples-on-kubernetes-helm-golang-client>:
<!-- language: go -->
rel, err := client.Run(myChart, vals)
if err != nil {
log.Println(err)
panic(err)
}
But we have a values.yaml file also which was passed as -f values.yaml when installing charts from the CLI.
Is there a way to pass these values.yaml files via the action Go package during installation (client.Run())?
Or do we need to unmarshal the YAML file and pass that also as map:
<!-- language: go -->
data2 := make(map[string]interface{})
yfile2, err := ioutil.ReadFile("./utils/values.yaml")
fmt.Println(err)
err = yaml.Unmarshal(yfile2, &data2)
答案1
得分: 2
一个直接的做法是重用helm.sh/helm/v3/pkg/cli/values包。该包具有处理-f选项（以及--set及其变体）并返回统一的map[string]interface{}的逻辑。代码示例如下：
import (
"helm.sh/helm/v3/pkg/cli"
"helm.sh/helm/v3/pkg/cli/values"
"helm.sh/helm/v3/pkg/getter"
)
envSettings := cli.New()
providers := getter.All(envSettings)
options := values.Options{
ValueFiles: []string{"./utils/values.yaml"},
}
theValues := options.MergeValues(providers)
现在，theValues是从这些文件中读取的map[string]interface{}。如果需要，您可以进一步自定义值（作为Go数据），然后将其传递给install.Run()。
英文:
One straightforward thing to do could be to reuse the helm.sh/helm/v3/pkg/cli/values package. This has the logic to handle the -f option (and also --set and its variants) and return a unified map[string]interface{}. This could look like:
import (
"helm.sh/helm/v3/pkg/cli"
"helm.sh/helm/v3/pkg/cli/values"
"helm.sh/helm/v3/pkg/getter"
)
envSettings := cli.New()
providers := getter.All(envSettings)
options := values.Options{
ValueFiles: []string{"./utils/values.yaml"},
}
theValues := options.MergeValues(providers)
Now theValues is the map[string]interface{} that results from reading those files. You can customize the values further if required (as Go data) and then pass that to install.Run().
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