使用Openshift/Client-go进行Openshift API查询

Question

我正在尝试在openshift/client-go的帮助下列出openshift中的所有构建配置

import (
    "context"
    "flag"
    "fmt"
    "os"
    "path/filepath"

    metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    "k8s.io/client-go/tools/clientcmd"

    buildv1 "github.com/openshift/client-go/build/clientset/versioned/typed/build/v1"
)

func main() {
    err := start()
    if err != nil {
        fmt.Fprintf(os.Stderr, "error: %v", err)
        os.Exit(1)
    }
}

func start() error {
    var kubeconfig *string
    if home := homeDir(); home != "" {
        kubeconfig = flag.String("kubeconfig", filepath.Join(home, ".kube", "config"), "(optional) absolute path to the kubeconfig file")
    } else {
        kubeconfig = flag.String("kubeconfig", "", "absolute path to the kubeconfig file")
    }
    flag.Parse()

    // use the current context in kubeconfig
    config, err := clientcmd.BuildConfigFromFlags("", *kubeconfig)
    if err != nil {
        return err
    }

    buildV1Client, err := buildv1.NewForConfig(config)
    if err != nil {
        return err
    }

    namespace := "testproject"
    // get all builds
    builds, err := buildV1Client.Builds(namespace).List(context.TODO(), metav1.ListOptions{})
    if err != nil {
        return err
    }
    fmt.Printf("There are %d builds in project %s\n", len(builds.Items), namespace)
    // List names of all builds
    for i, build := range builds.Items {
        fmt.Printf("index %d: Name of the build: %s", i, build.Name)
    }
    return nil
}

func homeDir() string {
    if h := os.Getenv("HOME"); h != "" {
        return h
    }
    return os.Getenv("USERPROFILE") // windows
}

我已经通过glide获得了所有的依赖项。glide.yaml glide update -v

package: .
import:
- package: github.com/openshift/client-go
  subpackages:
  - build/clientset/versioned/typed/build/v1
- package: k8s.io/apimachinery
  subpackages:
  - pkg/apis/meta/v1
- package: k8s.io/client-go
  subpackages:
  - tools/clientcmd

我看到我所有的包都是供应商的一部分。但我无法将类型更改为供应商配置。

go run main.go
# command-line-arguments
./main.go:39:44: cannot use config (type *"k8s.io/client-go/rest".Config) as type *"github.com/openshift/client-go/vendor/k8s.io/client-go/rest".Config in argument to "github.com/openshift/client-go/build/clientset/versioned/typed/build/v1".NewForConfig
./main.go:46:88: cannot use "k8s.io/apimachinery/pkg/apis/meta/v1".ListOptions literal (type "k8s.io/apimachinery/pkg/apis/meta/v1".ListOptions) as type "github.com/openshift/client-go/vendor/k8s.io/apimachinery/pkg/apis/meta/v1".ListOptions in argument to buildV1Client.Builds(namespace).List

我已经删除了当前目录中的供应商目录，并确保gopath有所有需要的依赖项作为替代尝试，但这不起作用。我也尝试链接~/go/src/github.com/openshift/client-go/vendor/*供应商，但似乎不起作用。

我还尝试了解决方案List Openshift objects via Go client API。但这并不管用。

Answer 1

在撰写本文时，glide有点outdated。它的最后一次发布是2019年7月10日。

从1.11版本开始，Golang就提出了名为go modules的本地包管理，这已经成为管理依赖项的首选方式。这就是管理您的vendor目录的方法，这也是github.com/openshift/client-go使用的方法。我还假设您是从this 开始的。

因为github.com/openshift/client-go下的所有东西都有已经被管理的依赖项。我推荐?：

go get github.com/openshift/client-go
cd $GOPATH/src/github.com/mygihubusername/myrepo
cp -R ../../openshift/client-go/* .
# put main.go here with your code or any of the subdirectories
# cd subdir ? if you put the main.go file under a subdir.
go build -o buildclient . 
# clean up any files you don't need
# create github repo
git add *
git commit -m 'My first commit'
git push origin master

对我很有效。✌️