114 lines
3.6 KiB
Go
114 lines
3.6 KiB
Go
// Licensed to Elasticsearch B.V. under one or more contributor
|
|
// license agreements. See the NOTICE file distributed with
|
|
// this work for additional information regarding copyright
|
|
// ownership. Elasticsearch B.V. licenses this file to you 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 state_deployment
|
|
|
|
import (
|
|
"github.com/elastic/beats/libbeat/common"
|
|
|
|
"github.com/elastic/beats/libbeat/common/kubernetes"
|
|
p "github.com/elastic/beats/metricbeat/helper/prometheus"
|
|
"github.com/elastic/beats/metricbeat/mb"
|
|
"github.com/elastic/beats/metricbeat/mb/parse"
|
|
"github.com/elastic/beats/metricbeat/module/kubernetes/util"
|
|
)
|
|
|
|
const (
|
|
defaultScheme = "http"
|
|
defaultPath = "/metrics"
|
|
)
|
|
|
|
var (
|
|
hostParser = parse.URLHostParserBuilder{
|
|
DefaultScheme: defaultScheme,
|
|
DefaultPath: defaultPath,
|
|
}.Build()
|
|
|
|
mapping = &p.MetricsMapping{
|
|
Metrics: map[string]p.MetricMap{
|
|
"kube_deployment_metadata_generation": p.InfoMetric(),
|
|
"kube_deployment_status_replicas_updated": p.Metric("replicas.updated"),
|
|
"kube_deployment_status_replicas_unavailable": p.Metric("replicas.unavailable"),
|
|
"kube_deployment_status_replicas_available": p.Metric("replicas.available"),
|
|
"kube_deployment_spec_replicas": p.Metric("replicas.desired"),
|
|
"kube_deployment_spec_paused": p.BooleanMetric("paused"),
|
|
},
|
|
|
|
Labels: map[string]p.LabelMap{
|
|
"deployment": p.KeyLabel("name"),
|
|
"namespace": p.KeyLabel(mb.ModuleDataKey + ".namespace"),
|
|
},
|
|
|
|
ExtraFields: map[string]string{
|
|
mb.NamespaceKey: "deployment",
|
|
},
|
|
}
|
|
)
|
|
|
|
// init registers the MetricSet with the central registry.
|
|
// The New method will be called after the setup of the module and before starting to fetch data
|
|
func init() {
|
|
if err := mb.Registry.AddMetricSet("kubernetes", "state_deployment", New, hostParser); err != nil {
|
|
panic(err)
|
|
}
|
|
}
|
|
|
|
// MetricSet type defines all fields of the MetricSet
|
|
// As a minimum it must inherit the mb.BaseMetricSet fields, but can be extended with
|
|
// additional entries. These variables can be used to persist data or configuration between
|
|
// multiple fetch calls.
|
|
type MetricSet struct {
|
|
mb.BaseMetricSet
|
|
prometheus p.Prometheus
|
|
enricher util.Enricher
|
|
}
|
|
|
|
// New create a new instance of the MetricSet
|
|
// Part of new is also setting up the configuration by processing additional
|
|
// configuration entries if needed.
|
|
func New(base mb.BaseMetricSet) (mb.MetricSet, error) {
|
|
prometheus, err := p.NewPrometheusClient(base)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &MetricSet{
|
|
BaseMetricSet: base,
|
|
prometheus: prometheus,
|
|
enricher: util.NewResourceMetadataEnricher(base, &kubernetes.Deployment{}, false),
|
|
}, nil
|
|
}
|
|
|
|
// Fetch methods implements the data gathering and data conversion to the right format
|
|
// It returns the event which is then forward to the output. In case of an error, a
|
|
// descriptive error must be returned.
|
|
func (m *MetricSet) Fetch() ([]common.MapStr, error) {
|
|
m.enricher.Start()
|
|
|
|
events, err := m.prometheus.GetProcessedMetrics(mapping)
|
|
if err == nil {
|
|
m.enricher.Enrich(events)
|
|
}
|
|
|
|
return events, err
|
|
}
|
|
|
|
// Close stops this metricset
|
|
func (m *MetricSet) Close() error {
|
|
m.enricher.Stop()
|
|
return nil
|
|
}
|