我正在尝试使用 Kubernetes Client for Go 更新 Openshift 中的现有部署。我正在使用以下 JSON 将副本更新为 3:
JSON:
{
"kind": "Deployment",
"spec": {
"template": {
"spec": {
"containers": {
"image": "docker.fmr.com\/fmr-pr000105\/testcontainer:1.0.0",
"name": "testcontainer",
"resources": {
"requests": {
"cpu": "50m"
},
"limits": {
"cpu": "50m",
"memory": "50M"
}
},
"ports": {
"protocol": "TCP",
"name": "test-con-http",
"containerPort": 22
}
}
},
"metadata": {
"labels": {
"app": "testcontainer"
}
}
},
"replicas": 3
},
"apiVersion": "extensions\/v1beta1",
"metadata": {
"name": "testcontainer"
}
}
但继续收到错误:
only encoded map or array can be decoded into a struct
我正在使用以下代码:
import (
"fmt"
"flag"
"k8s.io/client-go/tools/clientcmd"
"k8s.io/client-go/kubernetes"
apiv1 "k8s.io/client-go/pkg/api/v1"
"k8s.io/client-go/pkg/api"
"k8s.io/client-go/pkg/apis/extensions"
"k8s.io/client-go/pkg/apis/extensions/v1beta1"
"bufio"
"os"
)
func main() {
var jsonBody []byte
jsonBody = rteMockedUp.GetJsonBody()
d := api.Codecs.UniversalDecoder()
obj, _, err := d.Decode(jsonBody, nil, nil)
if err != nil {
log.Fatalf("could not decode json: %s\n%s", jsonBody, err)
}
src := obj.(*extensions.Deployment)
dst := &v1beta1.Deployment{}
err = api.Scheme.Convert(src,dst,0)
if err != nil {
log.Fatalf("failed to convert: %s", err)
}
updateStatus, err := deploymentsClient.Update(dst)
if err != nil {
log.Fatalf("Update failed %s", err)
}
}
这里抛出一个错误:
obj, _, err := d.Decode(jsonBody, nil, nil)
我的 JSON 有问题吗?