third_party_ressource.go

// Copyright 2017 The prometheus-operator 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 framework

import (
	"time"

	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/util/wait"
	"k8s.io/apimachinery/pkg/util/yaml"
	"k8s.io/client-go/kubernetes"
	"k8s.io/client-go/pkg/apis/extensions/v1beta1"
)

func CreateAndWaitForThirdPartyRessource(kubeClient kubernetes.Interface, relativePath string, apiPath string) error {
	tpr, err := parseTPRYaml(relativePath)
	if err != nil {
		return err
	}

	_, err = kubeClient.Extensions().ThirdPartyResources().Create(tpr)
	if err != nil {
		return err
	}

	if err := WaitForThridPartyRessource(kubeClient, apiPath); err != nil {
		return err
	}

	return nil
}

func parseTPRYaml(relativePath string) (*v1beta1.ThirdPartyResource, error) {
	manifest, err := PathToOSFile(relativePath)
	if err != nil {
		return nil, err
	}

	appVersion := v1beta1.ThirdPartyResource{}
	if err := yaml.NewYAMLOrJSONDecoder(manifest, 100).Decode(&appVersion); err != nil {
		return nil, err
	}

	return &appVersion, nil
}

func WaitForThridPartyRessource(kubeClient kubernetes.Interface, apiPath string) error {
	return wait.Poll(time.Second, time.Minute, func() (bool, error) {
		res := kubeClient.CoreV1().RESTClient().Get().AbsPath(apiPath).Do()

		if res.Error() != nil {
			return false, nil
		}

		return true, nil
	})
}

func DeleteThirdPartyResource(kubeClient kubernetes.Interface, relativePath string) error {
	tpr, err := parseTPRYaml(relativePath)
	if err != nil {
		return err
	}

	if err := kubeClient.Extensions().ThirdPartyResources().Delete(tpr.Name, &metav1.DeleteOptions{}); err != nil {
		return err
	}

	return nil
}