/
mock.go
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/
mock.go
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// Copyright 2021 New Relic Corporation. All rights reserved.
// SPDX-License-Identifier: Apache-2.0
// Package mock implements the external provider interface.
package mock
import (
"context"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/metrics/pkg/apis/external_metrics"
"sigs.k8s.io/custom-metrics-apiserver/pkg/provider"
)
// Provider holds the config of the provider.
type Provider struct {
GetExternalMetricFunc func(ctx context.Context, namespace string, metricSelector labels.Selector, info provider.ExternalMetricInfo) (*external_metrics.ExternalMetricValueList, error) //nolint:lll // External interface requirement.
ListAllExternalMetricsFunc func() []provider.ExternalMetricInfo
}
// GetExternalMetric implemented from external provider interface.
func (p *Provider) GetExternalMetric(ctx context.Context, namespace string, metricSelector labels.Selector, info provider.ExternalMetricInfo) (*external_metrics.ExternalMetricValueList, error) { //nolint:lll // External interface requirement.
if p.GetExternalMetricFunc != nil {
return p.GetExternalMetricFunc(ctx, namespace, metricSelector, info)
}
return &external_metrics.ExternalMetricValueList{
Items: []external_metrics.ExternalMetricValue{
{
MetricName: "MockMetric",
MetricLabels: map[string]string{
"foo": "bar",
},
Timestamp: metav1.Now(),
Value: *resource.NewQuantity(1, resource.DecimalSI),
},
},
}, nil
}
// ListAllExternalMetrics implemented from external provider interface.
func (p *Provider) ListAllExternalMetrics() []provider.ExternalMetricInfo {
if p.ListAllExternalMetricsFunc != nil {
return p.ListAllExternalMetricsFunc()
}
return []provider.ExternalMetricInfo{
{
Metric: "MockMetric",
},
}
}