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Add config options for metrics

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This commit is contained in:
Daniel 2021-03-10 14:00:51 +01:00
parent 4a05c26339
commit aef3f26ad3
4 changed files with 89 additions and 16 deletions
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23
metrics/module.go
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@ -2,7 +2,6 @@ package metrics
import (
"errors"
"flag"
"fmt"
"sort"
"sync"
@ -20,9 +19,6 @@ var (
metricNamespace string
globalLabels = make(map[string]string)
pushURL string
metricInstance string
// ErrAlreadyStarted is returned when an operation is only valid before the
// first metric is registered, and is called after.
ErrAlreadyStarted = errors.New("can only be changed before first metric is registered")
@ -36,29 +32,30 @@ var (
)
func init() {
flag.StringVar(&pushURL, "push-metrics", "", "URL to push prometheus metrics to")
flag.StringVar(&metricInstance, "metrics-instance", "", "Set the global instance label")
module = modules.Register("metrics", prep, start, stop, "database", "api")
}
func prep() error {
return prepConfig()
}
func start() error {
// Add metric instance name as global variable if set.
if metricInstance != "" {
if err := AddGlobalLabel("instance", metricInstance); err != nil {
if instanceOption() != "" {
if err := AddGlobalLabel("instance", instanceOption()); err != nil {
return err
}
}
return registerInfoMetric()
}
if err := registerInfoMetric(); err != nil {
return err
}
func start() error {
if err := registerAPI(); err != nil {
return err
}
if pushURL != "" {
if pushOption() != "" {
module.StartServiceWorker("metric pusher", 0, metricsWriter)
}