Update dependencies
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Manuel de Brito Fontes
parent
bf5616c65b
commit
d6d374b28d
13962 changed files with 48226 additions and 3618880 deletions
273
pkg/nginx/metric/collector/vts.go
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273
pkg/nginx/metric/collector/vts.go
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/*
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Copyright 2016 The Kubernetes 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 collector
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import (
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"reflect"
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"github.com/golang/glog"
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"github.com/prometheus/client_golang/prometheus"
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)
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const ns = "nginx"
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type (
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vtsCollector struct {
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scrapeChan chan scrapeRequest
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port int
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path string
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data *vtsData
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watchNamespace string
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ingressClass string
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}
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vtsData struct {
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bytes *prometheus.Desc
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cache *prometheus.Desc
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connections *prometheus.Desc
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responses *prometheus.Desc
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requests *prometheus.Desc
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filterZoneBytes *prometheus.Desc
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filterZoneResponses *prometheus.Desc
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filterZoneCache *prometheus.Desc
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upstreamBackup *prometheus.Desc
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upstreamBytes *prometheus.Desc
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upstreamDown *prometheus.Desc
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upstreamFailTimeout *prometheus.Desc
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upstreamMaxFails *prometheus.Desc
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upstreamResponses *prometheus.Desc
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upstreamRequests *prometheus.Desc
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upstreamResponseMsec *prometheus.Desc
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upstreamWeight *prometheus.Desc
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}
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)
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// NewNGINXVTSCollector returns a new prometheus collector for the VTS module
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func NewNGINXVTSCollector(watchNamespace, ingressClass string, port int, path string) Stopable {
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p := vtsCollector{
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scrapeChan: make(chan scrapeRequest),
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port: port,
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path: path,
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watchNamespace: watchNamespace,
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ingressClass: ingressClass,
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}
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p.data = &vtsData{
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bytes: prometheus.NewDesc(
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prometheus.BuildFQName(ns, "", "bytes_total"),
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"Nginx bytes count",
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[]string{"ingress_class", "namespace", "server_zone", "direction"}, nil),
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cache: prometheus.NewDesc(
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prometheus.BuildFQName(ns, "", "cache_total"),
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"Nginx cache count",
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[]string{"ingress_class", "namespace", "server_zone", "type"}, nil),
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connections: prometheus.NewDesc(
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prometheus.BuildFQName(ns, "", "connections_total"),
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"Nginx connections count",
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[]string{"ingress_class", "namespace", "type"}, nil),
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responses: prometheus.NewDesc(
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prometheus.BuildFQName(ns, "", "responses_total"),
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"The number of responses with status codes 1xx, 2xx, 3xx, 4xx, and 5xx.",
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[]string{"ingress_class", "namespace", "server_zone", "status_code"}, nil),
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requests: prometheus.NewDesc(
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prometheus.BuildFQName(ns, "", "requests_total"),
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"The total number of requested client connections.",
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[]string{"ingress_class", "namespace", "server_zone"}, nil),
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filterZoneBytes: prometheus.NewDesc(
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prometheus.BuildFQName(ns, "", "filterzone_bytes_total"),
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"Nginx bytes count",
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[]string{"ingress_class", "namespace", "server_zone", "key", "direction"}, nil),
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filterZoneResponses: prometheus.NewDesc(
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prometheus.BuildFQName(ns, "", "filterzone_responses_total"),
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"The number of responses with status codes 1xx, 2xx, 3xx, 4xx, and 5xx.",
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[]string{"ingress_class", "namespace", "server_zone", "key", "status_code"}, nil),
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filterZoneCache: prometheus.NewDesc(
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prometheus.BuildFQName(ns, "", "filterzone_cache_total"),
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"Nginx cache count",
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[]string{"ingress_class", "namespace", "server_zone", "key", "type"}, nil),
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upstreamBackup: prometheus.NewDesc(
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prometheus.BuildFQName(ns, "", "upstream_backup"),
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"Current backup setting of the server.",
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[]string{"ingress_class", "namespace", "upstream", "server"}, nil),
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upstreamBytes: prometheus.NewDesc(
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prometheus.BuildFQName(ns, "", "upstream_bytes_total"),
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"The total number of bytes sent to this server.",
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[]string{"ingress_class", "namespace", "upstream", "server", "direction"}, nil),
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upstreamDown: prometheus.NewDesc(
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prometheus.BuildFQName(ns, "", "vts_upstream_down_total"),
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"Current down setting of the server.",
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[]string{"ingress_class", "namespace", "upstream", "server"}, nil),
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upstreamFailTimeout: prometheus.NewDesc(
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prometheus.BuildFQName(ns, "", "upstream_fail_timeout"),
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"Current fail_timeout setting of the server.",
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[]string{"ingress_class", "namespace", "upstream", "server"}, nil),
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upstreamMaxFails: prometheus.NewDesc(
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prometheus.BuildFQName(ns, "", "upstream_maxfails"),
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"Current max_fails setting of the server.",
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[]string{"ingress_class", "namespace", "upstream", "server"}, nil),
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upstreamResponses: prometheus.NewDesc(
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prometheus.BuildFQName(ns, "", "upstream_responses_total"),
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"The number of upstream responses with status codes 1xx, 2xx, 3xx, 4xx, and 5xx.",
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[]string{"ingress_class", "namespace", "upstream", "server", "status_code"}, nil),
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upstreamRequests: prometheus.NewDesc(
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prometheus.BuildFQName(ns, "", "upstream_requests_total"),
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"The total number of client connections forwarded to this server.",
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[]string{"ingress_class", "namespace", "upstream", "server"}, nil),
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upstreamResponseMsec: prometheus.NewDesc(
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prometheus.BuildFQName(ns, "", "upstream_response_msecs_avg"),
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"The average of only upstream response processing times in milliseconds.",
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[]string{"ingress_class", "namespace", "upstream", "server"}, nil),
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upstreamWeight: prometheus.NewDesc(
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prometheus.BuildFQName(ns, "", "upstream_weight"),
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"Current upstream weight setting of the server.",
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[]string{"ingress_class", "namespace", "upstream", "server"}, nil),
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}
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go p.start()
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return p
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}
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// Describe implements prometheus.Collector.
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func (p vtsCollector) Describe(ch chan<- *prometheus.Desc) {
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ch <- p.data.bytes
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ch <- p.data.cache
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ch <- p.data.connections
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ch <- p.data.requests
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ch <- p.data.responses
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ch <- p.data.upstreamBackup
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ch <- p.data.upstreamBytes
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ch <- p.data.upstreamDown
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ch <- p.data.upstreamFailTimeout
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ch <- p.data.upstreamMaxFails
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ch <- p.data.upstreamRequests
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ch <- p.data.upstreamResponseMsec
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ch <- p.data.upstreamResponses
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ch <- p.data.upstreamWeight
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ch <- p.data.filterZoneBytes
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ch <- p.data.filterZoneCache
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ch <- p.data.filterZoneResponses
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}
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// Collect implements prometheus.Collector.
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func (p vtsCollector) Collect(ch chan<- prometheus.Metric) {
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req := scrapeRequest{results: ch, done: make(chan struct{})}
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p.scrapeChan <- req
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<-req.done
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}
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func (p vtsCollector) start() {
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for req := range p.scrapeChan {
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ch := req.results
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p.scrapeVts(ch)
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req.done <- struct{}{}
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}
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}
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func (p vtsCollector) Stop() {
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close(p.scrapeChan)
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}
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// scrapeVts scrape nginx vts metrics
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func (p vtsCollector) scrapeVts(ch chan<- prometheus.Metric) {
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nginxMetrics, err := getNginxVtsMetrics(p.port, p.path)
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if err != nil {
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glog.Warningf("unexpected error obtaining nginx status info: %v", err)
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return
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}
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reflectMetrics(&nginxMetrics.Connections, p.data.connections, ch, p.ingressClass, p.watchNamespace)
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for name, zones := range nginxMetrics.UpstreamZones {
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for pos, value := range zones {
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reflectMetrics(&zones[pos].Responses, p.data.upstreamResponses, ch, p.ingressClass, p.watchNamespace, name, value.Server)
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ch <- prometheus.MustNewConstMetric(p.data.upstreamRequests,
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prometheus.CounterValue, zones[pos].RequestCounter, p.ingressClass, p.watchNamespace, name, value.Server)
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ch <- prometheus.MustNewConstMetric(p.data.upstreamDown,
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prometheus.CounterValue, float64(zones[pos].Down), p.ingressClass, p.watchNamespace, name, value.Server)
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ch <- prometheus.MustNewConstMetric(p.data.upstreamWeight,
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prometheus.CounterValue, zones[pos].Weight, p.ingressClass, p.watchNamespace, name, value.Server)
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ch <- prometheus.MustNewConstMetric(p.data.upstreamResponseMsec,
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prometheus.CounterValue, zones[pos].ResponseMsec, p.ingressClass, p.watchNamespace, name, value.Server)
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ch <- prometheus.MustNewConstMetric(p.data.upstreamBackup,
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prometheus.CounterValue, float64(zones[pos].Backup), p.ingressClass, p.watchNamespace, name, value.Server)
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ch <- prometheus.MustNewConstMetric(p.data.upstreamFailTimeout,
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prometheus.CounterValue, zones[pos].FailTimeout, p.ingressClass, p.watchNamespace, name, value.Server)
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ch <- prometheus.MustNewConstMetric(p.data.upstreamMaxFails,
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prometheus.CounterValue, zones[pos].MaxFails, p.ingressClass, p.watchNamespace, name, value.Server)
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ch <- prometheus.MustNewConstMetric(p.data.upstreamBytes,
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prometheus.CounterValue, zones[pos].InBytes, p.ingressClass, p.watchNamespace, name, value.Server, "in")
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ch <- prometheus.MustNewConstMetric(p.data.upstreamBytes,
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prometheus.CounterValue, zones[pos].OutBytes, p.ingressClass, p.watchNamespace, name, value.Server, "out")
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}
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}
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for name, zone := range nginxMetrics.ServerZones {
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reflectMetrics(&zone.Responses, p.data.responses, ch, p.ingressClass, p.watchNamespace, name)
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reflectMetrics(&zone.Cache, p.data.cache, ch, p.ingressClass, p.watchNamespace, name)
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ch <- prometheus.MustNewConstMetric(p.data.requests,
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prometheus.CounterValue, zone.RequestCounter, p.ingressClass, p.watchNamespace, name)
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ch <- prometheus.MustNewConstMetric(p.data.bytes,
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prometheus.CounterValue, zone.InBytes, p.ingressClass, p.watchNamespace, name, "in")
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ch <- prometheus.MustNewConstMetric(p.data.bytes,
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prometheus.CounterValue, zone.OutBytes, p.ingressClass, p.watchNamespace, name, "out")
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}
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for serverZone, keys := range nginxMetrics.FilterZones {
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for name, zone := range keys {
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reflectMetrics(&zone.Responses, p.data.filterZoneResponses, ch, p.ingressClass, p.watchNamespace, serverZone, name)
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reflectMetrics(&zone.Cache, p.data.filterZoneCache, ch, p.ingressClass, p.watchNamespace, serverZone, name)
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ch <- prometheus.MustNewConstMetric(p.data.filterZoneBytes,
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prometheus.CounterValue, zone.InBytes, p.ingressClass, p.watchNamespace, serverZone, name, "in")
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ch <- prometheus.MustNewConstMetric(p.data.filterZoneBytes,
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prometheus.CounterValue, zone.OutBytes, p.ingressClass, p.watchNamespace, serverZone, name, "out")
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}
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}
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}
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func reflectMetrics(value interface{}, desc *prometheus.Desc, ch chan<- prometheus.Metric, labels ...string) {
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val := reflect.ValueOf(value).Elem()
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for i := 0; i < val.NumField(); i++ {
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tag := val.Type().Field(i).Tag
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l := append(labels, tag.Get("json"))
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ch <- prometheus.MustNewConstMetric(desc,
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prometheus.CounterValue, val.Field(i).Interface().(float64),
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l...)
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}
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}
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