kubernetes portsforobject 源码

  • 2022-09-18
  • 浏览 (111)

kubernetes portsforobject 代码

文件路径:/staging/src/k8s.io/kubectl/pkg/polymorphichelpers/portsforobject.go

/*
Copyright 2018 The Kubernetes Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package polymorphichelpers

import (
	"fmt"
	"strconv"

	appsv1 "k8s.io/api/apps/v1"
	appsv1beta1 "k8s.io/api/apps/v1beta1"
	appsv1beta2 "k8s.io/api/apps/v1beta2"
	corev1 "k8s.io/api/core/v1"
	extensionsv1beta1 "k8s.io/api/extensions/v1beta1"
	"k8s.io/apimachinery/pkg/runtime"
)

func portsForObject(object runtime.Object) ([]string, error) {
	switch t := object.(type) {
	case *corev1.ReplicationController:
		return getPorts(t.Spec.Template.Spec), nil

	case *corev1.Pod:
		return getPorts(t.Spec), nil

	case *corev1.Service:
		return getServicePorts(t.Spec), nil

	case *extensionsv1beta1.Deployment:
		return getPorts(t.Spec.Template.Spec), nil
	case *appsv1.Deployment:
		return getPorts(t.Spec.Template.Spec), nil
	case *appsv1beta2.Deployment:
		return getPorts(t.Spec.Template.Spec), nil
	case *appsv1beta1.Deployment:
		return getPorts(t.Spec.Template.Spec), nil

	case *extensionsv1beta1.ReplicaSet:
		return getPorts(t.Spec.Template.Spec), nil
	case *appsv1.ReplicaSet:
		return getPorts(t.Spec.Template.Spec), nil
	case *appsv1beta2.ReplicaSet:
		return getPorts(t.Spec.Template.Spec), nil
	default:
		return nil, fmt.Errorf("cannot extract ports from %T", object)
	}
}

func getPorts(spec corev1.PodSpec) []string {
	result := []string{}
	for _, container := range spec.Containers {
		for _, port := range container.Ports {
			result = append(result, strconv.Itoa(int(port.ContainerPort)))
		}
	}
	return result
}

func getServicePorts(spec corev1.ServiceSpec) []string {
	result := []string{}
	for _, servicePort := range spec.Ports {
		result = append(result, strconv.Itoa(int(servicePort.Port)))
	}
	return result
}

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