81 lines
3.3 KiB
Go
81 lines
3.3 KiB
Go
/*
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Copyright 2019 The KubeSphere 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 monitoring
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import (
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"kubesphere.io/kubesphere/pkg/models/monitoring/expressions"
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"kubesphere.io/kubesphere/pkg/simple/client/monitoring"
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"time"
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)
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type MonitoringOperator interface {
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GetMetric(expr, namespace string, time time.Time) (monitoring.Metric, error)
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GetMetricOverTime(expr, namespace string, start, end time.Time, step time.Duration) (monitoring.Metric, error)
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GetNamedMetrics(metrics []string, time time.Time, opt monitoring.QueryOption) Metrics
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GetNamedMetricsOverTime(metrics []string, start, end time.Time, step time.Duration, opt monitoring.QueryOption) Metrics
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GetMetadata(namespace string) Metadata
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}
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type monitoringOperator struct {
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c monitoring.Interface
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}
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func NewMonitoringOperator(client monitoring.Interface) MonitoringOperator {
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return &monitoringOperator{client}
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}
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func (mo monitoringOperator) GetMetric(expr, namespace string, time time.Time) (monitoring.Metric, error) {
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// Different monitoring backend implementations have different ways to enforce namespace isolation.
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// Each implementation should register itself to `ReplaceNamespaceFns` during init().
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// We hard code "prometheus" here because we only support this datasource so far.
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// In the future, maybe the value should be returned from a method like `mo.c.GetMonitoringServiceName()`.
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expr, err := expressions.ReplaceNamespaceFns["prometheus"](expr, namespace)
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if err != nil {
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return monitoring.Metric{}, err
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}
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return mo.c.GetMetric(expr, time), nil
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}
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func (mo monitoringOperator) GetMetricOverTime(expr, namespace string, start, end time.Time, step time.Duration) (monitoring.Metric, error) {
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// Different monitoring backend implementations have different ways to enforce namespace isolation.
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// Each implementation should register itself to `ReplaceNamespaceFns` during init().
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// We hard code "prometheus" here because we only support this datasource so far.
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// In the future, maybe the value should be returned from a method like `mo.c.GetMonitoringServiceName()`.
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expr, err := expressions.ReplaceNamespaceFns["prometheus"](expr, namespace)
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if err != nil {
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return monitoring.Metric{}, err
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}
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return mo.c.GetMetricOverTime(expr, start, end, step), nil
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}
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func (mo monitoringOperator) GetNamedMetrics(metrics []string, time time.Time, opt monitoring.QueryOption) Metrics {
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ress := mo.c.GetNamedMetrics(metrics, time, opt)
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return Metrics{Results: ress}
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}
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func (mo monitoringOperator) GetNamedMetricsOverTime(metrics []string, start, end time.Time, step time.Duration, opt monitoring.QueryOption) Metrics {
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ress := mo.c.GetNamedMetricsOverTime(metrics, start, end, step, opt)
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return Metrics{Results: ress}
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}
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func (mo monitoringOperator) GetMetadata(namespace string) Metadata {
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data := mo.c.GetMetadata(namespace)
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return Metadata{Data: data}
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}
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