更新特定的yaml屬性

我試圖決議一個 yaml 檔案并只更新一個屬性，問題是型別是RAW，當我更新一個欄位時，它會更新整個物件，

我想要的只是 NatIPNames從test1to更新test2，但不改變(10000)的值minPortsPerVM我該怎么做？

這是yaml

apiVersion: core.gardener.cloud/v1beta1
kind: Shoot
metadata:
  name: test
  namespace: ns
spec:
  provider:
    type: aaa
    infrastructureConfig:
      apiVersion: gcp.provider.extensions.gardener.cloud/v1alpha1
      kind: InfrastructureConfig
      networks:
        cloudNAT:
          minPortsPerVM: 10000
          natIPNames:
            - name: test1

這是代碼

package main

import (
    "encoding/json"
    "fmt"
    gcpv1alpha1 "github.com/gardener/gardener-extension-provider-gcp/pkg/apis/gcp/v1alpha1"
    "github.com/gardener/gardener/pkg/apis/core/v1beta1"
    "io/ioutil"
    "k8s.io/apimachinery/pkg/runtime"
    "k8s.io/apimachinery/pkg/util/yaml"
)

func main() {
    shoot, e := parseShoot("test.yaml")
    if e != nil {
        fmt.Println(e)
    }

    shoot.Spec.Provider.InfrastructureConfig.Raw = encode(&gcpv1alpha1.InfrastructureConfig{
        Networks: gcpv1alpha1.NetworkConfig{
            CloudNAT: &gcpv1alpha1.CloudNAT{
                //MinPortsPerVM: ,
                NatIPNames: []gcpv1alpha1.NatIPName{
                    {Name: "test2"},
                },
            },
        },
    })
    fmt.Println(shoot.Spec.Provider.InfrastructureConfig)
}

func parseShoot(path string) (*v1beta1.Shoot, error) {
    var shootSpec *v1beta1.Shoot
    bytes, err := ioutil.ReadFile(path)
    if err != nil {
        return nil, err
    }
    err = yaml.Unmarshal(bytes, &shootSpec)
    if err != nil {
        return nil, err
    }
    return shootSpec, nil
}

func encode(obj runtime.Object) []byte {
    data, _ := json.Marshal(obj)
    return data
}

uj5u.com熱心網友回復：

我不太了解園丁的財產。但是你可以做的是為InfrastructureConfig下面的類似創建一個結構

type InfraConfig struct {
    APIVersion string `json:"apiVersion"`
    Kind       string `json:"kind"`
    Networks   struct {
        CloudNAT struct {
            MinPortsPerVM int `json:"minPortsPerVM"`
            NatIPNames    []struct {
                Name string `json:"name"`
            } `json:"natIPNames"`
        } `json:"cloudNAT"`
    } `json:"networks"`
}

并創建一個參考該結構的變數并將Raw物件解組為如下所示。

    var existingInfraConfig InfraConfig
    err := json.Unmarshal(shoot.Spec.Provider.InfrastructureConfig.Raw, &existingInfraConfig)

然后您可以編輯名稱（您可能需要添加一些邏輯來驗證切片以更新正確的索引）并將其編組并將其分配回 InfraConfig，如下所示。

    existingInfraConfig.Networks.CloudNAT.NatIPNames[0].Name = "test2"
    byteData, _ := json.Marshal(existingInfraConfig)

    shoot.Spec.Provider.InfrastructureConfig = &runtime.RawExtension{
        Raw:    byteData,
        Object: nil,
    }

總的來說，它就像

package main

import (
    "encoding/json"
    "fmt"
    "github.com/gardener/gardener/pkg/apis/core/v1beta1"
    "io/ioutil"
    "k8s.io/apimachinery/pkg/runtime"
    "k8s.io/apimachinery/pkg/util/yaml"
)

type InfraConfig struct {
    APIVersion string `json:"apiVersion"`
    Kind       string `json:"kind"`
    Networks   struct {
        CloudNAT struct {
            MinPortsPerVM int `json:"minPortsPerVM"`
            NatIPNames    []struct {
                Name string `json:"name"`
            } `json:"natIPNames"`
        } `json:"cloudNAT"`
    } `json:"networks"`
}

func main() {
    shoot, e := parseShoot("test.yaml")
    if e != nil {
        fmt.Println(e)
    }

    var existingInfraConfig InfraConfig
    err := json.Unmarshal(shoot.Spec.Provider.InfrastructureConfig.Raw, &existingInfraConfig)
    fmt.Println(err)

    existingInfraConfig.Networks.CloudNAT.NatIPNames[0].Name = "test2"
    byteData, _ := json.Marshal(existingInfraConfig)

    shoot.Spec.Provider.InfrastructureConfig = &runtime.RawExtension{
        Raw:    byteData,
        Object: nil,
    }
    fmt.Println(string(shoot.Spec.Provider.InfrastructureConfig.Raw))

}

func parseShoot(path string) (*v1beta1.Shoot, error) {
    var shootSpec *v1beta1.Shoot
    bytes, err := ioutil.ReadFile(path)
    if err != nil {
        return nil, err
    }
    err = yaml.Unmarshal(bytes, &shootSpec)
    if err != nil {
        return nil, err
    }
    return shootSpec, nil
}

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