mirror of
https://github.com/kubernetes-sigs/prometheus-adapter.git
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2984604be8
This commit introduces advanced configuration. The rate-interval and label-prefix flags are removed, and replaced by a configuration file that allows you to specify series queries and the rules for transforming those into metrics queries and API resources.
92 lines
4 KiB
Go
92 lines
4 KiB
Go
package config
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import (
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"fmt"
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"time"
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prom "github.com/directxman12/k8s-prometheus-adapter/pkg/client"
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pmodel "github.com/prometheus/common/model"
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)
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// DefaultConfig returns a configuration equivalent to the former
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// pre-advanced-config settings. This means that "normal" series labels
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// will be of the form `<prefix>${.Resource}$`, cadvisor series will be
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// of the form `container_`, and have the label `pod_name`. Any series ending
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// in total will be treated as a rate metric.
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func DefaultConfig(rateInterval time.Duration, labelPrefix string) *MetricsDiscoveryConfig {
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return &MetricsDiscoveryConfig{
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Rules: []DiscoveryRule{
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// container seconds rate metrics
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{
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SeriesQuery: string(prom.MatchSeries("", prom.NameMatches("^container_.*"), prom.LabelNeq("container_name", "POD"), prom.LabelNeq("namespace", ""), prom.LabelNeq("pod_name", ""))),
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Resources: ResourceMapping{
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Overrides: map[string]GroupResource{
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"namespace": {Resource: "namespace"},
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"pod_name": {Resource: "pod"},
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},
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},
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Name: NameMapping{Matches: "^container_(.*)_seconds_total$"},
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MetricsQuery: fmt.Sprintf(`sum(rate(${.Series}${${.LabelMatchers}$,container_name!="POD"}[%s])) by (${.GroupBy}$)`, pmodel.Duration(rateInterval).String()),
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},
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// container rate metrics
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{
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SeriesQuery: string(prom.MatchSeries("", prom.NameMatches("^container_.*"), prom.LabelNeq("container_name", "POD"), prom.LabelNeq("namespace", ""), prom.LabelNeq("pod_name", ""))),
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SeriesFilters: []RegexFilter{{IsNot: "^container_.*_seconds_total$"}},
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Resources: ResourceMapping{
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Overrides: map[string]GroupResource{
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"namespace": {Resource: "namespace"},
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"pod_name": {Resource: "pod"},
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},
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},
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Name: NameMapping{Matches: "^container_(.*)_total$"},
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MetricsQuery: fmt.Sprintf(`sum(rate(${.Series}${${.LabelMatchers}$,container_name!="POD"}[%s])) by (${.GroupBy}$)`, pmodel.Duration(rateInterval).String()),
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},
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// container non-cumulative metrics
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{
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SeriesQuery: string(prom.MatchSeries("", prom.NameMatches("^container_.*"), prom.LabelNeq("container_name", "POD"), prom.LabelNeq("namespace", ""), prom.LabelNeq("pod_name", ""))),
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SeriesFilters: []RegexFilter{{IsNot: "^container_.*_total$"}},
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Resources: ResourceMapping{
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Overrides: map[string]GroupResource{
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"namespace": {Resource: "namespace"},
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"pod_name": {Resource: "pod"},
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},
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},
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Name: NameMapping{Matches: "^container_(.*)$"},
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MetricsQuery: `sum(${.Series}${${.LabelMatchers}$,container_name!="POD"}) by (${.GroupBy}$)`,
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},
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// normal non-cumulative metrics
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{
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SeriesQuery: string(prom.MatchSeries("", prom.LabelNeq(fmt.Sprintf("%snamespace", labelPrefix), ""), prom.NameNotMatches("^container_.*"))),
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SeriesFilters: []RegexFilter{{IsNot: ".*_total$"}},
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Resources: ResourceMapping{
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Template: fmt.Sprintf("%s${.Resource}$", labelPrefix),
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},
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MetricsQuery: "sum(${.Series}${${.LabelMatchers}$}) by (${.GroupBy}$)",
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},
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// normal rate metrics
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{
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SeriesQuery: string(prom.MatchSeries("", prom.LabelNeq(fmt.Sprintf("%snamespace", labelPrefix), ""), prom.NameNotMatches("^container_.*"))),
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SeriesFilters: []RegexFilter{{IsNot: ".*_seconds_total"}},
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Name: NameMapping{Matches: "^(.*)_total$"},
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Resources: ResourceMapping{
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Template: fmt.Sprintf("%s${.Resource}$", labelPrefix),
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},
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MetricsQuery: fmt.Sprintf("sum(rate(${.Series}${${.LabelMatchers}$}[%s])) by (${.GroupBy}$)", pmodel.Duration(rateInterval).String()),
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},
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// seconds rate metrics
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{
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SeriesQuery: string(prom.MatchSeries("", prom.LabelNeq(fmt.Sprintf("%snamespace", labelPrefix), ""), prom.NameNotMatches("^container_.*"))),
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Name: NameMapping{Matches: "^(.*)_seconds_total$"},
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Resources: ResourceMapping{
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Template: fmt.Sprintf("%s${.Resource}$", labelPrefix),
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},
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MetricsQuery: fmt.Sprintf("sum(rate(${.Series}${${.LabelMatchers}$}[%s])) by (${.GroupBy}$)", pmodel.Duration(rateInterval).String()),
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},
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},
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}
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}
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