K8s YAML 生成

复制import yaml

# 定义 Deployment 模板
deployment = {
    "apiVersion": "apps/v1",
    "kind": "Deployment",
    "metadata": {"name": "my-app", "labels": {"app": "my-app"}},
    "spec": {
        "replicas": 3,
        "selector": {"matchLabels": {"app": "my-app"}},
        "template": {
            "metadata": {"labels": {"app": "my-app"}},
            "spec": {
                "containers": [{
                    "name": "app",
                    "image": "nginx:1.25",
                    "ports": [{"containerPort": 80}]
                }]
            }
        }
    }
}

# 序列化为 YAML 字符串
print(yaml.dump(deployment, default_flow_style=False))

复制package main

import (
	"fmt"
	"os"

	appsv1 "k8s.io/api/apps/v1"
	corev1 "k8s.io/api/core/v1"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"sigs.k8s.io/yaml"
)

func main() {
	// 构建 Deployment 对象
	deploy := &appsv1.Deployment{
		TypeMeta: metav1.TypeMeta{APIVersion: "apps/v1", Kind: "Deployment"},
		ObjectMeta: metav1.ObjectMeta{Name: "my-app"},
		Spec: appsv1.DeploymentSpec{
			Replicas: int32Ptr(3),
			Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"app": "my-app"}},
			Template: corev1.PodTemplateSpec{
				ObjectMeta: metav1.ObjectMeta{Labels: map[string]string{"app": "my-app"}},
				Spec: corev1.PodSpec{
					Containers: []corev1.Container{{
						Name:  "app",
						Image: "nginx:1.25",
						Ports: []corev1.ContainerPort{{ContainerPort: 80}},
					}},
				},
			},
		},
	}

	// 序列化为 YAML
	out, err := yaml.Marshal(deploy)
	if err != nil {
		fmt.Fprintf(os.Stderr, "marshal error: %v\n", err)
		os.Exit(1)
	}
	fmt.Print(string(out))
}

func int32Ptr(i int32) *int32 { return &i }

复制const yaml = require('js-yaml');

// 定义 Service 模板
const service = {
  apiVersion: 'v1',
  kind: 'Service',
  metadata: { name: 'my-app-svc' },
  spec: {
    selector: { app: 'my-app' },
    ports: [
      { protocol: 'TCP', port: 80, targetPort: 80 }
    ],
    type: 'ClusterIP'
  }
};

// 序列化为 YAML 字符串
try {
  const yamlStr = yaml.dump(service);
  console.log(yamlStr);
} catch (e) {
  console.error('YAML serialization failed:', e.message);
}