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https://github.com/kubernetes-sigs/prometheus-adapter.git
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fc88e6e57a
* Some bug fixes found during testing/test repair. * Trying to tease apart the various responsibilities of `metricNamer` into smaller chunks and adding tests for each individual chunk. * Updating the `provider_test` and `series_registry_test` to fix failures.
81 lines
3.4 KiB
Go
81 lines
3.4 KiB
Go
package provider
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// import (
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// "context"
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// "time"
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// pmodel "github.com/prometheus/common/model"
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// "github.com/kubernetes-incubator/custom-metrics-apiserver/pkg/provider"
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// apimeta "k8s.io/apimachinery/pkg/api/meta"
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// "k8s.io/apimachinery/pkg/labels"
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// "k8s.io/client-go/dynamic"
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// "k8s.io/metrics/pkg/apis/external_metrics"
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// prom "github.com/directxman12/k8s-prometheus-adapter/pkg/client"
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// )
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// //TODO: Make sure everything has the proper licensing disclosure at the top.
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// //TODO: I'd like to move these files into another directory, but the compiler was giving me
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// //some static around unexported types. I'm going to leave things as-is for now, but it
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// //might be worthwhile to, once the shared components are discovered, move some things around.
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// //TODO: Some of these members may not be necessary.
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// //Some of them are definitely duplicated between the
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// //external and custom providers. They should probably share
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// //the same instances of these objects (especially the SeriesRegistry)
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// //to cut down on unnecessary chatter/bookkeeping.
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// type externalPrometheusProvider struct {
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// mapper apimeta.RESTMapper
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// kubeClient dynamic.Interface
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// promClient prom.Client
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// queryBuilder ExternalMetricQueryBuilder
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// metricConverter conv.MetricConverter
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// seriesRegistry SeriesRegistry
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// }
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// //TODO: It probably makes more sense to, once this is functional and complete, roll the
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// //prometheusProvider and externalPrometheusProvider up into a single type
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// //that implements both interfaces or provide a thin wrapper that composes them.
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// //Just glancing at start.go looks like it would be much more straightforward
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// //to do one of those two things instead of trying to run the two providers
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// //independently.
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// func NewExternalPrometheusProvider(mapper apimeta.RESTMapper, kubeClient dynamic.Interface, promClient prom.Client, namers []MetricNamer, updateInterval time.Duration, metricConverter conv.MetricConverter, seriesRegistry SeriesRegistry) (provider.ExternalMetricsProvider, Runnable) {
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// return &externalPrometheusProvider{
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// mapper: mapper,
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// kubeClient: kubeClient,
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// promClient: promClient,
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// metricConverter: metricConverter,
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// seriesRegistry: seriesRegistry,
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// }, lister
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// }
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// func (p *externalPrometheusProvider) GetExternalMetric(namespace string, metricName string, metricSelector labels.Selector) (*external_metrics.ExternalMetricValueList, error) {
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// selector, found := p.seriesRegistry.QueryForExternalMetric(metricInfo, metricSelector)
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// if !found {
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// return &external_metrics.ExternalMetricValueList{
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// Items: []external_metrics.ExternalMetricValue{},
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// }, nil
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// }
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// // query := p.queryBuilder.BuildPrometheusQuery(namespace, metricName, metricSelector, queryMetadata)
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// //TODO: I don't yet know what a context is, but apparently I should use a real one.
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// queryResults, err := p.promClient.Query(context.TODO(), pmodel.Now(), selector)
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// if err != nil {
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// //TODO: Is this how folks normally deal w/ errors? Just propagate them upwards?
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// //I should go look at what the customProvider does.
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// return nil, err
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// }
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// return p.metricConverter.Convert(queryMetadata, queryResults)
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// }
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// func (p *externalPrometheusProvider) ListAllExternalMetrics() []provider.ExternalMetricInfo {
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// return p.seriesRegistry.ListAllExternalMetrics()
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// }
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