/
metrics.go
88 lines (77 loc) · 3.05 KB
/
metrics.go
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package consul
import (
"context"
consul "github.com/hashicorp/consul/api"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promauto"
"github.com/grafana/dskit/instrument"
)
type consulInstrumentation struct {
kv kv
consulMetrics *consulMetrics
}
type consulMetrics struct {
consulRequestDuration *instrument.HistogramCollector
}
func newConsulMetrics(registerer prometheus.Registerer) *consulMetrics {
consulRequestDurationCollector := instrument.NewHistogramCollector(promauto.With(registerer).NewHistogramVec(prometheus.HistogramOpts{
Name: "consul_request_duration_seconds",
Help: "Time spent on consul requests.",
Buckets: prometheus.DefBuckets,
}, []string{"operation", "status_code"}))
consulMetrics := consulMetrics{consulRequestDurationCollector}
return &consulMetrics
}
func (c consulInstrumentation) CAS(p *consul.KVPair, options *consul.WriteOptions) (bool, *consul.WriteMeta, error) {
var ok bool
var result *consul.WriteMeta
err := instrument.CollectedRequest(options.Context(), "CAS", c.consulMetrics.consulRequestDuration, instrument.ErrorCode, func(ctx context.Context) error {
options = options.WithContext(ctx)
var err error
ok, result, err = c.kv.CAS(p, options)
return err
})
return ok, result, err
}
func (c consulInstrumentation) Get(key string, options *consul.QueryOptions) (*consul.KVPair, *consul.QueryMeta, error) {
var kvp *consul.KVPair
var meta *consul.QueryMeta
err := instrument.CollectedRequest(options.Context(), "Get", c.consulMetrics.consulRequestDuration, instrument.ErrorCode, func(ctx context.Context) error {
options = options.WithContext(ctx)
var err error
kvp, meta, err = c.kv.Get(key, options)
return err
})
return kvp, meta, err
}
func (c consulInstrumentation) List(path string, options *consul.QueryOptions) (consul.KVPairs, *consul.QueryMeta, error) {
var kvps consul.KVPairs
var meta *consul.QueryMeta
err := instrument.CollectedRequest(options.Context(), "List", c.consulMetrics.consulRequestDuration, instrument.ErrorCode, func(ctx context.Context) error {
options = options.WithContext(ctx)
var err error
kvps, meta, err = c.kv.List(path, options)
return err
})
return kvps, meta, err
}
func (c consulInstrumentation) Delete(key string, options *consul.WriteOptions) (*consul.WriteMeta, error) {
var meta *consul.WriteMeta
err := instrument.CollectedRequest(options.Context(), "Delete", c.consulMetrics.consulRequestDuration, instrument.ErrorCode, func(ctx context.Context) error {
options = options.WithContext(ctx)
var err error
meta, err = c.kv.Delete(key, options)
return err
})
return meta, err
}
func (c consulInstrumentation) Put(p *consul.KVPair, options *consul.WriteOptions) (*consul.WriteMeta, error) {
var result *consul.WriteMeta
err := instrument.CollectedRequest(options.Context(), "Put", c.consulMetrics.consulRequestDuration, instrument.ErrorCode, func(ctx context.Context) error {
options = options.WithContext(ctx)
var err error
result, err = c.kv.Put(p, options)
return err
})
return result, err
}