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[WIP] MON-4380: Add optional monitoring logic #2688
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126 changes: 126 additions & 0 deletions
126
pkg/tasks/clustermonitoringoperator_optionalmonitoring.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,126 @@ | ||
| // Copyright 2018 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 tasks | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
|
|
||
| rbacv1 "k8s.io/api/rbac/v1" | ||
| apierrors "k8s.io/apimachinery/pkg/api/errors" | ||
| "k8s.io/klog/v2" | ||
|
|
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| "github.com/openshift/cluster-monitoring-operator/pkg/client" | ||
| "github.com/openshift/cluster-monitoring-operator/pkg/manifests" | ||
| ) | ||
|
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| type ClusterMonitoringOperatorOptionalMonitoringTask struct { | ||
| client *client.Client | ||
| factory *manifests.Factory | ||
| config *manifests.Config | ||
| } | ||
|
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| func NewClusterMonitoringOperatorOptionalMonitoringTask( | ||
| client *client.Client, | ||
| factory *manifests.Factory, | ||
| config *manifests.Config, | ||
| ) *ClusterMonitoringOperatorOptionalMonitoringTask { | ||
| return &ClusterMonitoringOperatorOptionalMonitoringTask{ | ||
| client: client, | ||
| factory: factory, | ||
| config: config, | ||
| } | ||
| } | ||
|
|
||
| func (t *ClusterMonitoringOperatorOptionalMonitoringTask) Run(ctx context.Context) error { | ||
| crfs := map[string]func() (*rbacv1.ClusterRole, error){ | ||
| "cluster-monitoring-view": t.factory.ClusterMonitoringClusterRoleView, | ||
| "system:aggregated-metrics-reader": t.factory.ClusterMonitoringClusterRoleAggregatedMetricsReader, | ||
| "pod-metrics-reader": t.factory.ClusterMonitoringClusterRolePodMetricsReader, | ||
| "monitoring-rules-edit": t.factory.ClusterMonitoringRulesEditClusterRole, | ||
| "monitoring-rules-view": t.factory.ClusterMonitoringRulesViewClusterRole, | ||
| "monitoring-edit": t.factory.ClusterMonitoringEditClusterRole, | ||
| } | ||
| for name, crf := range crfs { | ||
| cr, err := crf() | ||
| if err != nil { | ||
| return fmt.Errorf("initializing %s ClusterRole failed: %w", name, err) | ||
| } | ||
|
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| err = t.client.CreateOrUpdateClusterRole(ctx, cr) | ||
| if err != nil { | ||
| return fmt.Errorf("reconciling %s ClusterRole failed: %w", name, err) | ||
| } | ||
| } | ||
|
|
||
| clarr, err := t.factory.ClusterMonitoringApiReaderRole() | ||
| if err != nil { | ||
| return fmt.Errorf("initializing ClusterMonitoringApiReader Role failed: %w", err) | ||
| } | ||
|
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| err = t.client.CreateOrUpdateRole(ctx, clarr) | ||
| if err != nil { | ||
| return fmt.Errorf("reconciling ClusterMonitoringApiReader Role failed: %w", err) | ||
| } | ||
|
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| pr, err := t.factory.ClusterMonitoringOperatorPrometheusRule() | ||
| if err != nil { | ||
| return fmt.Errorf("initializing cluster-monitoring-operator rules PrometheusRule failed: %w", err) | ||
| } | ||
| err = t.client.CreateOrUpdatePrometheusRule(ctx, pr) | ||
| if err != nil { | ||
| return fmt.Errorf("reconciling cluster-monitoring-operator rules PrometheusRule failed: %w", err) | ||
| } | ||
|
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| smcmo, err := t.factory.ClusterMonitoringOperatorServiceMonitor() | ||
| if err != nil { | ||
| return fmt.Errorf("initializing Cluster Monitoring Operator ServiceMonitor failed: %w", err) | ||
| } | ||
|
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| err = t.client.CreateOrUpdateServiceMonitor(ctx, smcmo) | ||
| if err != nil { | ||
| return fmt.Errorf("reconciling Cluster Monitoring Operator ServiceMonitor failed: %w", err) | ||
| } | ||
|
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| s, err := t.factory.GRPCSecret() | ||
| if err != nil { | ||
| return fmt.Errorf("error initializing Cluster Monitoring Operator GRPC TLS secret: %w", err) | ||
| } | ||
|
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| loaded, err := t.client.GetSecret(ctx, s.Namespace, s.Name) | ||
| switch { | ||
| case apierrors.IsNotFound(err): | ||
| // No secret was found, proceed with the default empty secret from manifests. | ||
| klog.V(5).Info("creating new Cluster Monitoring Operator GRPC TLS secret") | ||
| case err == nil: | ||
| // Secret was found, use that. | ||
| s = loaded | ||
| klog.V(5).Info("found existing Cluster Monitoring Operator GRPC TLS secret") | ||
| default: | ||
| return fmt.Errorf("error reading Cluster Monitoring Operator GRPC TLS secret: %w", err) | ||
| } | ||
|
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| err = manifests.RotateGRPCSecret(s) | ||
| if err != nil { | ||
| return fmt.Errorf("error rotating Cluster Monitoring Operator GRPC TLS secret: %w", err) | ||
| } | ||
|
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| err = t.client.CreateOrUpdateSecret(ctx, s) | ||
| if err != nil { | ||
| return fmt.Errorf("error creating Cluster Monitoring Operator GRPC TLS secret: %w", err) | ||
| } | ||
|
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||
| return nil | ||
| } |
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Waiting on this.