mirror of
https://github.com/k8sgpt-ai/k8sgpt.git
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131 lines
3.4 KiB
Go
131 lines
3.4 KiB
Go
/*
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Copyright 2023 The K8sGPT Authors.
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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 analyzer
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import (
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"fmt"
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"time"
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"github.com/k8sgpt-ai/k8sgpt/pkg/common"
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"github.com/k8sgpt-ai/k8sgpt/pkg/util"
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cron "github.com/robfig/cron/v3"
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v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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type CronJobAnalyzer struct{}
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func (analyzer CronJobAnalyzer) Analyze(a common.Analyzer) ([]common.Result, error) {
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kind := "CronJob"
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AnalyzerErrorsMetric.DeletePartialMatch(map[string]string{
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"analyzer_name": kind,
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})
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cronJobList, err := a.Client.GetClient().BatchV1().CronJobs(a.Namespace).List(a.Context, v1.ListOptions{})
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if err != nil {
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return nil, err
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}
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var preAnalysis = map[string]common.PreAnalysis{}
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for _, cronJob := range cronJobList.Items {
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var failures []common.Failure
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if cronJob.Spec.Suspend != nil && *cronJob.Spec.Suspend {
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failures = append(failures, common.Failure{
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Text: fmt.Sprintf("CronJob %s is suspended", cronJob.Name),
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Sensitive: []common.Sensitive{
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{
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Unmasked: cronJob.Namespace,
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Masked: util.MaskString(cronJob.Namespace),
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},
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{
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Unmasked: cronJob.Name,
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Masked: util.MaskString(cronJob.Name),
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},
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},
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})
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} else {
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// check the schedule format
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if _, err := CheckCronScheduleIsValid(cronJob.Spec.Schedule); err != nil {
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failures = append(failures, common.Failure{
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Text: fmt.Sprintf("CronJob %s has an invalid schedule: %s", cronJob.Name, err.Error()),
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Sensitive: []common.Sensitive{
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{
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Unmasked: cronJob.Namespace,
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Masked: util.MaskString(cronJob.Namespace),
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},
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{
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Unmasked: cronJob.Name,
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Masked: util.MaskString(cronJob.Name),
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},
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},
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})
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}
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// check the starting deadline
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if cronJob.Spec.StartingDeadlineSeconds != nil {
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deadline := time.Duration(*cronJob.Spec.StartingDeadlineSeconds) * time.Second
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if deadline < 0 {
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failures = append(failures, common.Failure{
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Text: fmt.Sprintf("CronJob %s has a negative starting deadline", cronJob.Name),
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Sensitive: []common.Sensitive{
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{
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Unmasked: cronJob.Namespace,
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Masked: util.MaskString(cronJob.Namespace),
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},
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{
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Unmasked: cronJob.Name,
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Masked: util.MaskString(cronJob.Name),
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},
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},
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})
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}
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}
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}
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if len(failures) > 0 {
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preAnalysis[fmt.Sprintf("%s/%s", cronJob.Namespace, cronJob.Name)] = common.PreAnalysis{
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FailureDetails: failures,
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}
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AnalyzerErrorsMetric.WithLabelValues(kind, cronJob.Name, cronJob.Namespace).Set(float64(len(failures)))
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}
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for key, value := range preAnalysis {
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currentAnalysis := common.Result{
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Kind: kind,
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Name: key,
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Error: value.FailureDetails,
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}
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a.Results = append(a.Results, currentAnalysis)
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}
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}
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return a.Results, nil
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}
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// Check CRON schedule format
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func CheckCronScheduleIsValid(schedule string) (bool, error) {
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_, err := cron.ParseStandard(schedule)
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if err != nil {
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return false, err
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}
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return true, nil
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}
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