parth-gr
a84daf9bf0
few functions got change as they were deprecated for ex: ioutil.Readfile change to os.Readfile ioutil.TempFile change to os.CreateTemp And fixed golang-ci-lint-issues Signed-off-by: parth-gr <paarora@redhat.com>
89 lines
3.2 KiB
Go
89 lines
3.2 KiB
Go
/*
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Copyright 2020 The Rook Authors. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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// Package k8sutil for Kubernetes helpers.
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package k8sutil
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import (
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"bytes"
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"context"
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"fmt"
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"os"
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"path/filepath"
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monitoringv1 "github.com/prometheus-operator/prometheus-operator/pkg/apis/monitoring/v1"
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monitoringclient "github.com/prometheus-operator/prometheus-operator/pkg/client/versioned"
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kerrors "k8s.io/apimachinery/pkg/api/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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k8sYAML "k8s.io/apimachinery/pkg/util/yaml"
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"k8s.io/client-go/tools/clientcmd"
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)
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func getMonitoringClient() (*monitoringclient.Clientset, error) {
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cfg, err := clientcmd.BuildConfigFromFlags("", "")
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if err != nil {
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return nil, fmt.Errorf("failed to build config. %v", err)
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}
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client, err := monitoringclient.NewForConfig(cfg)
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if err != nil {
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return nil, fmt.Errorf("failed to get monitoring client. %v", err)
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}
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return client, nil
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}
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// GetServiceMonitor returns servicemonitor or an error
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func GetServiceMonitor(filePath string) (*monitoringv1.ServiceMonitor, error) {
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file, err := os.ReadFile(filepath.Clean(filePath))
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if err != nil {
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return nil, fmt.Errorf("servicemonitor file could not be fetched. %v", err)
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}
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var servicemonitor monitoringv1.ServiceMonitor
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err = k8sYAML.NewYAMLOrJSONDecoder(bytes.NewBufferString(string(file)), 1000).Decode(&servicemonitor)
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if err != nil {
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return nil, fmt.Errorf("servicemonitor could not be decoded. %v", err)
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}
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return &servicemonitor, nil
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}
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// CreateOrUpdateServiceMonitor creates serviceMonitor object or an error
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func CreateOrUpdateServiceMonitor(ctx context.Context, serviceMonitorDefinition *monitoringv1.ServiceMonitor) (*monitoringv1.ServiceMonitor, error) {
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name := serviceMonitorDefinition.GetName()
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namespace := serviceMonitorDefinition.GetNamespace()
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logger.Debugf("creating servicemonitor %s", name)
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client, err := getMonitoringClient()
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if err != nil {
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return nil, fmt.Errorf("failed to get monitoring client. %v", err)
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}
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oldSm, err := client.MonitoringV1().ServiceMonitors(namespace).Get(ctx, name, metav1.GetOptions{})
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if err != nil {
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if kerrors.IsNotFound(err) {
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sm, err := client.MonitoringV1().ServiceMonitors(namespace).Create(ctx, serviceMonitorDefinition, metav1.CreateOptions{})
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if err != nil {
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return nil, fmt.Errorf("failed to create servicemonitor. %v", err)
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}
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return sm, nil
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}
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return nil, fmt.Errorf("failed to retrieve servicemonitor. %v", err)
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}
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oldSm.Spec = serviceMonitorDefinition.Spec
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oldSm.ObjectMeta.Labels = serviceMonitorDefinition.ObjectMeta.Labels
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sm, err := client.MonitoringV1().ServiceMonitors(namespace).Update(ctx, oldSm, metav1.UpdateOptions{})
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if err != nil {
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return nil, fmt.Errorf("failed to update servicemonitor. %v", err)
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}
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return sm, nil
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}
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