forked from openshift/cluster-monitoring-operator
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
WIP: Set degraded OperatorStatus based on critical alerts firing in
monitoring stack TODO: severity=critical
- Loading branch information
Showing
2 changed files
with
150 additions
and
11 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| // Copyright 2019 The Cluster Monitoring 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 status | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "strings" | ||
|
|
||
| "github.com/Jeffail/gabs" | ||
| routev1 "github.com/openshift/client-go/route/clientset/versioned/typed/route/v1" | ||
| "github.com/openshift/cluster-monitoring-operator/test/e2e/framework" | ||
| "github.com/pkg/errors" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/client-go/kubernetes" | ||
| "k8s.io/client-go/rest" | ||
| ) | ||
|
|
||
| // IsDegraded returns true when there are any critical alerts firing in openshift-monitoring | ||
| // or openshift-user-workload-monitoring namespaces. Or when quering of alerts fails as that | ||
| // implies a problem somewhere in the cluster. | ||
| func IsDegraded(config *rest.Config) (bool, string, error) { | ||
| firing, msg, err := alertsFiring(config) | ||
| if err != nil { | ||
| return true, msg, errors.Wrap(err, "could not query for alerts firing") | ||
| } | ||
| if firing { | ||
| return true, "MonitoringAlertsFiring", errors.New("alerts around monitoring stack are firing") | ||
| } | ||
| return false, "", nil | ||
| } | ||
|
|
||
| func alertsFiring(config *rest.Config) (bool, string, error) { | ||
| // Prometheus client depends on setup above. | ||
| // So far only necessary for prometheusK8sClient. | ||
| openshiftRouteClient, err := routev1.NewForConfig(config) | ||
| if err != nil { | ||
| return false, "OpenShiftRouteClientError", errors.Wrap(err, "creating openshiftRouteClient failed") | ||
| } | ||
| kubeClient, err := kubernetes.NewForConfig(config) | ||
| if err != nil { | ||
| return false, "KubeConfigError", errors.Wrap(err, "creating kubeClient failed") | ||
| } | ||
| token, err := getServiceAccountToken(kubeClient, "openshift-monitoring", "cluster-monitoring-operator") | ||
| if err != nil { | ||
| return false, "ServiceAccountTokenMissing", err | ||
| } | ||
| thanosQuerierClient, err := framework.NewPrometheusClientFromRoute( | ||
| openshiftRouteClient, | ||
| "openshift-monitoring", "thanos-querier", | ||
| token, | ||
| ) | ||
| if err != nil { | ||
| return false, "ThanosQuerierClientError", errors.Wrap(err, "creating ThanosQuerierClient failed") | ||
| } | ||
| // TODO: replace with actual alerts that we care about | ||
| // critical in openshift-monitoring and openshift-user-workload-monitoring | ||
| // if user workload is enabled then check that namespace as well | ||
| // Any critical monitoring alert | ||
| body, err := thanosQuerierClient.PrometheusQuery(`ALERTS{namespace="openshift-monitoring", severity="critical"}`) | ||
| if err != nil { | ||
| fmt.Println(err) | ||
| return false, "ThanosQuerierQueryFailed", err | ||
| } | ||
|
|
||
| res, err := gabs.ParseJSON(body) | ||
| if err != nil { | ||
| fmt.Println(err) | ||
| return false, "", err | ||
| } | ||
|
|
||
| count, err := res.ArrayCountP("data.result") | ||
| if err != nil { | ||
| fmt.Println(err) | ||
| return false, "", err | ||
| } | ||
|
|
||
| if count > 0 { | ||
| fmt.Println(res) | ||
| fmt.Println("----what") | ||
| return true, "AlertsFiring", nil | ||
| } | ||
|
|
||
| return false, "", nil | ||
| } | ||
|
|
||
| func getServiceAccountToken(kubeClient *kubernetes.Clientset, namespace, name string) (string, error) { | ||
| secrets, err := kubeClient.CoreV1().Secrets(namespace).List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| for _, secret := range secrets.Items { | ||
| _, dockerToken := secret.Annotations["openshift.io/create-dockercfg-secrets"] | ||
| token := strings.Contains(secret.Name, fmt.Sprintf("%s-token-", name)) | ||
|
|
||
| // we have to skip the token secret that contains the openshift.io/create-dockercfg-secrets annotation | ||
| // as this is the token to talk to the internal registry. | ||
| if !dockerToken && token { | ||
| return string(secret.Data["token"]), nil | ||
| } | ||
| } | ||
| return "", errors.Errorf("cannot find token for %s/%s service account", namespace, name) | ||
| } |