customclient.go

/*
 * Copyright the original author or 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 customclient

import (
	"github.com/citrusframework/yaks/pkg/apis/yaks/v1alpha1"
	"k8s.io/apimachinery/pkg/runtime/schema"
	"k8s.io/client-go/dynamic"
	"k8s.io/client-go/kubernetes"
	"k8s.io/client-go/rest"
	"sigs.k8s.io/controller-runtime/pkg/client/config"
)

// GetClientFor returns a RESTClient for the given group and version.
func GetClientFor(c kubernetes.Interface, group string, version string) (*rest.RESTClient, error) {
	inConfig, err := config.GetConfig()
	if err != nil {
		return nil, err
	}
	conf := rest.CopyConfig(inConfig)
	conf.GroupVersion = &schema.GroupVersion{
		Group:   group,
		Version: version,
	}
	conf.APIPath = "/apis"
	conf.AcceptContentTypes = "application/json"
	conf.ContentType = "application/json"

	// this gets used for discovery and error handling types
	conf.NegotiatedSerializer = basicNegotiatedSerializer{}
	if conf.UserAgent == "" {
		conf.UserAgent = rest.DefaultKubernetesUserAgent()
	}

	return rest.RESTClientFor(conf)
}

// GetDynamicClientFor returns a dynamic client for a given kind.
func GetDynamicClientFor(group string, version string, kind string, namespace string) (dynamic.ResourceInterface, error) {
	conf, err := config.GetConfig()
	if err != nil {
		return nil, err
	}
	dynamicClient, err := dynamic.NewForConfig(conf)
	if err != nil {
		return nil, err
	}
	return dynamicClient.Resource(schema.GroupVersionResource{
		Group:    group,
		Version:  version,
		Resource: kind,
	}).Namespace(namespace), nil
}

// GetDefaultDynamicClientFor returns a dynamic client for a given kind.
func GetDefaultDynamicClientFor(kind string, namespace string) (dynamic.ResourceInterface, error) {
	conf, err := config.GetConfig()
	if err != nil {
		return nil, err
	}
	dynamicClient, err := dynamic.NewForConfig(conf)
	if err != nil {
		return nil, err
	}
	return dynamicClient.Resource(schema.GroupVersionResource{
		Group:    v1alpha1.SchemeGroupVersion.Group,
		Version:  v1alpha1.SchemeGroupVersion.Version,
		Resource: kind,
	}).Namespace(namespace), nil
}