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update promlog to latest version (#4876)

Browse source 
* update promlog to latest version

Signed-off-by: Alex Yu <yu.alex96@gmail.com>

* Update api tests, fix main setup

Signed-off-by: Alex Yu <yu.alex96@gmail.com>

* tidy go.sum

Signed-off-by: Alex Yu <yu.alex96@gmail.com>

* revendor prometheus/common

Signed-off-by: Alex Yu <yu.alex96@gmail.com>

* only initialize config; use kingpin for remote_storage_adapter

Signed-off-by: Alex Yu <yu.alex96@gmail.com>

* actually parse the flags

Signed-off-by: Alex Yu <yu.alex96@gmail.com>

* clean up imports

Signed-off-by: Alex Yu <yu.alex96@gmail.com>
This commit is contained in:
Alex Yu 2018-11-23 08:22:40 -05:00 committed by Simon Pasquier
parent 996fd958ac
commit 5dcce32ef8
12 changed files with 385 additions and 165 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
cmd/prometheus/main.go
View file

@ -101,11 +101,12 @@ func main() {
prometheusURL string
logLevel promlog.AllowedLevel
promlogConfig promlog.Config
}{
notifier: notifier.Options{
Registerer: prometheus.DefaultRegisterer,
},
promlogConfig: promlog.Config{},
}
a := kingpin.New(filepath.Base(os.Args[0]), "The Prometheus monitoring server")
@ -204,7 +205,7 @@ func main() {
a.Flag("query.max-samples", "Maximum number of samples a single query can load into memory. Note that queries will fail if they would load more samples than this into memory, so this also limits the number of samples a query can return.").
Default("50000000").IntVar(&cfg.queryMaxSamples)
promlogflag.AddFlags(a, &cfg.logLevel)
promlogflag.AddFlags(a, &cfg.promlogConfig)
_, err := a.Parse(os.Args[1:])
if err != nil {
@ -233,7 +234,7 @@ func main() {
promql.LookbackDelta = time.Duration(cfg.lookbackDelta)
logger := promlog.New(cfg.logLevel)
logger := promlog.New(&cfg.promlogConfig)
// XXX(fabxc): Kubernetes does background logging which we can only customize by modifying
// a global variable.

79
documentation/examples/remote_storage/remote_storage_adapter/main.go
View file

@ -15,13 +15,13 @@
package main
import (
"flag"
"fmt"
"io/ioutil"
"net/http"
_ "net/http/pprof"
"net/url"
"os"
"path/filepath"
"sync"
"time"
@ -29,13 +29,17 @@ import (
"github.com/go-kit/kit/log/level"
"github.com/gogo/protobuf/proto"
"github.com/golang/snappy"
"github.com/pkg/errors"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/prometheus/common/model"
"gopkg.in/alecthomas/kingpin.v2"
influx "github.com/influxdata/influxdb/client/v2"
"github.com/prometheus/common/promlog"
"github.com/prometheus/common/promlog/flag"
"github.com/prometheus/prometheus/documentation/examples/remote_storage/remote_storage_adapter/graphite"
"github.com/prometheus/prometheus/documentation/examples/remote_storage/remote_storage_adapter/influxdb"
"github.com/prometheus/prometheus/documentation/examples/remote_storage/remote_storage_adapter/opentsdb"
@ -55,7 +59,7 @@ type config struct {
remoteTimeout time.Duration
listenAddr string
telemetryPath string
logLevel string
promlogConfig promlog.Config
}
var (
@ -100,11 +104,7 @@ func main() {
cfg := parseFlags()
http.Handle(cfg.telemetryPath, promhttp.Handler())
logLevel := promlog.AllowedLevel{}
if err := logLevel.Set(cfg.logLevel); err != nil {
panic(fmt.Sprintf("Error setting log level: %v", err))
}
logger := promlog.New(logLevel)
logger := promlog.New(&cfg.promlogConfig)
writers, readers := buildClients(logger, cfg)
if err := serve(logger, cfg.listenAddr, writers, readers); err != nil {
@ -114,42 +114,45 @@ func main() {
}
func parseFlags() *config {
a := kingpin.New(filepath.Base(os.Args[0]), "Remote storage adapter")
a.HelpFlag.Short('h')
cfg := &config{
influxdbPassword: os.Getenv("INFLUXDB_PW"),
promlogConfig: promlog.Config{},
}
flag.StringVar(&cfg.graphiteAddress, "graphite-address", "",
"The host:port of the Graphite server to send samples to. None, if empty.",
)
flag.StringVar(&cfg.graphiteTransport, "graphite-transport", "tcp",
"Transport protocol to use to communicate with Graphite. 'tcp', if empty.",
)
flag.StringVar(&cfg.graphitePrefix, "graphite-prefix", "",
"The prefix to prepend to all metrics exported to Graphite. None, if empty.",
)
flag.StringVar(&cfg.opentsdbURL, "opentsdb-url", "",
"The URL of the remote OpenTSDB server to send samples to. None, if empty.",
)
flag.StringVar(&cfg.influxdbURL, "influxdb-url", "",
"The URL of the remote InfluxDB server to send samples to. None, if empty.",
)
flag.StringVar(&cfg.influxdbRetentionPolicy, "influxdb.retention-policy", "autogen",
"The InfluxDB retention policy to use.",
)
flag.StringVar(&cfg.influxdbUsername, "influxdb.username", "",
"The username to use when sending samples to InfluxDB. The corresponding password must be provided via the INFLUXDB_PW environment variable.",
)
flag.StringVar(&cfg.influxdbDatabase, "influxdb.database", "prometheus",
"The name of the database to use for storing samples in InfluxDB.",
)
flag.DurationVar(&cfg.remoteTimeout, "send-timeout", 30*time.Second,
"The timeout to use when sending samples to the remote storage.",
)
flag.StringVar(&cfg.listenAddr, "web.listen-address", ":9201", "Address to listen on for web endpoints.")
flag.StringVar(&cfg.telemetryPath, "web.telemetry-path", "/metrics", "Address to listen on for web endpoints.")
flag.StringVar(&cfg.logLevel, "log.level", "debug", "Only log messages with the given severity or above. One of: [debug, info, warn, error]")
a.Flag("graphite-address", "The host:port of the Graphite server to send samples to. None, if empty.").
Default("").StringVar(&cfg.graphiteAddress)
a.Flag("graphite-transport", "Transport protocol to use to communicate with Graphite. 'tcp', if empty.").
Default("tcp").StringVar(&cfg.graphiteTransport)
a.Flag("graphite-prefix", "The prefix to prepend to all metrics exported to Graphite. None, if empty.").
Default("").StringVar(&cfg.graphitePrefix)
a.Flag("opentsdb-url", "The URL of the remote OpenTSDB server to send samples to. None, if empty.").
Default("").StringVar(&cfg.opentsdbURL)
a.Flag("influxdb-url", "The URL of the remote InfluxDB server to send samples to. None, if empty.").
Default("").StringVar(&cfg.influxdbURL)
a.Flag("influxdb.retention-policy", "The InfluxDB retention policy to use.").
Default("autogen").StringVar(&cfg.influxdbRetentionPolicy)
a.Flag("influxdb.username", "The username to use when sending samples to InfluxDB. The corresponding password must be provided via the INFLUXDB_PW environment variable.").
Default("").StringVar(&cfg.influxdbUsername)
a.Flag("influxdb.database", "The name of the database to use for storing samples in InfluxDB.").
Default("prometheus").StringVar(&cfg.influxdbDatabase)
a.Flag("send-timeout", "The timeout to use when sending samples to the remote storage.").
Default("30s").DurationVar(&cfg.remoteTimeout)
a.Flag("web.listen-address", "Address to listen on for web endpoints.").
Default(":9201").StringVar(&cfg.listenAddr)
a.Flag("web.telemetry-path", "Address to listen on for web endpoints.").
Default("/metrics").StringVar(&cfg.telemetryPath)
flag.Parse()
flag.AddFlags(a, &cfg.promlogConfig)
_, err := a.Parse(os.Args[1:])
if err != nil {
fmt.Fprintln(os.Stderr, errors.Wrapf(err, "Error parsing commandline arguments"))
a.Usage(os.Args[1:])
os.Exit(2)
}
return cfg
}

2
go.mod
View file

@ -103,7 +103,7 @@ require (
github.com/pmezard/go-difflib v0.0.0-20151028094244-d8ed2627bdf0 // indirect
github.com/prometheus/client_golang v0.0.0-20181001174001-0a8115f42e03
github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910
github.com/prometheus/common v0.0.0-20180518154759-7600349dcfe1
github.com/prometheus/common v0.0.0-20181119215939-b36ad289a3ea
github.com/prometheus/procfs v0.0.0-20160411190841-abf152e5f3e9 // indirect
github.com/prometheus/tsdb v0.2.0
github.com/rcrowley/go-metrics v0.0.0-20181016184325-3113b8401b8a // indirect

4
go.sum
View file

@ -211,8 +211,8 @@ github.com/prometheus/client_golang v0.0.0-20181001174001-0a8115f42e03 h1:716+Mw
github.com/prometheus/client_golang v0.0.0-20181001174001-0a8115f42e03/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910 h1:idejC8f05m9MGOsuEi1ATq9shN03HrxNkD/luQvxCv8=
github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
github.com/prometheus/common v0.0.0-20180518154759-7600349dcfe1 h1:osmNoEW2SCW3L7EX0km2LYM8HKpNWRiouxjE3XHkyGc=
github.com/prometheus/common v0.0.0-20180518154759-7600349dcfe1/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
github.com/prometheus/common v0.0.0-20181119215939-b36ad289a3ea h1:4RkbEb5XX0Wvu3XhIW3zxgLUhUE9suNc7YLO52/RyT4=
github.com/prometheus/common v0.0.0-20181119215939-b36ad289a3ea/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
github.com/prometheus/procfs v0.0.0-20160411190841-abf152e5f3e9 h1:IrO4Eb9oGw+GxzOhO4b2QC5EWO85Omh/4iTSPZktMm8=
github.com/prometheus/procfs v0.0.0-20160411190841-abf152e5f3e9/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
github.com/prometheus/tsdb v0.2.0 h1:27z98vFd/gPew17nmKEbLn37exGCwc2F5EyrgScg6bk=

385
vendor/github.com/prometheus/common/expfmt/text_create.go generated vendored
View file

@ -14,13 +14,45 @@
package expfmt
import (
"bytes"
"fmt"
"io"
"math"
"strconv"
"strings"
"sync"
"github.com/prometheus/common/model"
dto "github.com/prometheus/client_model/go"
"github.com/prometheus/common/model"
)
// enhancedWriter has all the enhanced write functions needed here. bytes.Buffer
// implements it.
type enhancedWriter interface {
io.Writer
WriteRune(r rune) (n int, err error)
WriteString(s string) (n int, err error)
WriteByte(c byte) error
}
const (
initialBufSize = 512
initialNumBufSize = 24
)
var (
bufPool = sync.Pool{
New: func() interface{} {
return bytes.NewBuffer(make([]byte, 0, initialBufSize))
},
}
numBufPool = sync.Pool{
New: func() interface{} {
b := make([]byte, 0, initialNumBufSize)
return &b
},
}
)
// MetricFamilyToText converts a MetricFamily proto message into text format and
@ -32,37 +64,92 @@ import (
// will result in invalid text format output.
//
// This method fulfills the type 'prometheus.encoder'.
func MetricFamilyToText(out io.Writer, in *dto.MetricFamily) (int, error) {
var written int
func MetricFamilyToText(out io.Writer, in *dto.MetricFamily) (written int, err error) {
// Fail-fast checks.
if len(in.Metric) == 0 {
return written, fmt.Errorf("MetricFamily has no metrics: %s", in)
return 0, fmt.Errorf("MetricFamily has no metrics: %s", in)
}
name := in.GetName()
if name == "" {
return written, fmt.Errorf("MetricFamily has no name: %s", in)
return 0, fmt.Errorf("MetricFamily has no name: %s", in)
}
// Try the interface upgrade. If it doesn't work, we'll use a
// bytes.Buffer from the sync.Pool and write out its content to out in a
// single go in the end.
w, ok := out.(enhancedWriter)
if !ok {
b := bufPool.Get().(*bytes.Buffer)
b.Reset()
w = b
defer func() {
bWritten, bErr := out.Write(b.Bytes())
written = bWritten
if err == nil {
err = bErr
}
bufPool.Put(b)
}()
}
var n int
// Comments, first HELP, then TYPE.
if in.Help != nil {
n, err := fmt.Fprintf(
out, "# HELP %s %s\n",
name, escapeString(*in.Help, false),
)
n, err = w.WriteString("# HELP ")
written += n
if err != nil {
return written, err
return
}
n, err = w.WriteString(name)
written += n
if err != nil {
return
}
err = w.WriteByte(' ')
written++
if err != nil {
return
}
n, err = writeEscapedString(w, *in.Help, false)
written += n
if err != nil {
return
}
err = w.WriteByte('\n')
written++
if err != nil {
return
}
}
metricType := in.GetType()
n, err := fmt.Fprintf(
out, "# TYPE %s %s\n",
name, strings.ToLower(metricType.String()),
)
n, err = w.WriteString("# TYPE ")
written += n
if err != nil {
return written, err
return
}
n, err = w.WriteString(name)
written += n
if err != nil {
return
}
metricType := in.GetType()
switch metricType {
case dto.MetricType_COUNTER:
n, err = w.WriteString(" counter\n")
case dto.MetricType_GAUGE:
n, err = w.WriteString(" gauge\n")
case dto.MetricType_SUMMARY:
n, err = w.WriteString(" summary\n")
case dto.MetricType_UNTYPED:
n, err = w.WriteString(" untyped\n")
case dto.MetricType_HISTOGRAM:
n, err = w.WriteString(" histogram\n")
default:
return written, fmt.Errorf("unknown metric type %s", metricType.String())
}
written += n
if err != nil {
return
}
// Finally the samples, one line for each.
@ -75,9 +162,8 @@ func MetricFamilyToText(out io.Writer, in *dto.MetricFamily) (int, error) {
)
}
n, err = writeSample(
name, metric, "", "",
w, name, "", metric, "", 0,
metric.Counter.GetValue(),
out,
)
case dto.MetricType_GAUGE:
if metric.Gauge == nil {
@ -86,9 +172,8 @@ func MetricFamilyToText(out io.Writer, in *dto.MetricFamily) (int, error) {
)
}
n, err = writeSample(
name, metric, "", "",
w, name, "", metric, "", 0,
metric.Gauge.GetValue(),
out,
)
case dto.MetricType_UNTYPED:
if metric.Untyped == nil {
@ -97,9 +182,8 @@ func MetricFamilyToText(out io.Writer, in *dto.MetricFamily) (int, error) {
)
}
n, err = writeSample(
name, metric, "", "",
w, name, "", metric, "", 0,
metric.Untyped.GetValue(),
out,
)
case dto.MetricType_SUMMARY:
if metric.Summary == nil {
@ -109,29 +193,26 @@ func MetricFamilyToText(out io.Writer, in *dto.MetricFamily) (int, error) {
}
for _, q := range metric.Summary.Quantile {
n, err = writeSample(
name, metric,
model.QuantileLabel, fmt.Sprint(q.GetQuantile()),
w, name, "", metric,
model.QuantileLabel, q.GetQuantile(),
q.GetValue(),
out,
)
written += n
if err != nil {
return written, err
return
}
}
n, err = writeSample(
name+"_sum", metric, "", "",
w, name, "_sum", metric, "", 0,
metric.Summary.GetSampleSum(),
out,
)
if err != nil {
return written, err
}
written += n
if err != nil {
return
}
n, err = writeSample(
name+"_count", metric, "", "",
w, name, "_count", metric, "", 0,
float64(metric.Summary.GetSampleCount()),
out,
)
case dto.MetricType_HISTOGRAM:
if metric.Histogram == nil {
@ -140,46 +221,42 @@ func MetricFamilyToText(out io.Writer, in *dto.MetricFamily) (int, error) {
)
}
infSeen := false
for _, q := range metric.Histogram.Bucket {
for _, b := range metric.Histogram.Bucket {
n, err = writeSample(
name+"_bucket", metric,
model.BucketLabel, fmt.Sprint(q.GetUpperBound()),
float64(q.GetCumulativeCount()),
out,
w, name, "_bucket", metric,
model.BucketLabel, b.GetUpperBound(),
float64(b.GetCumulativeCount()),
)
written += n
if err != nil {
return written, err
return
}
if math.IsInf(q.GetUpperBound(), +1) {
if math.IsInf(b.GetUpperBound(), +1) {
infSeen = true
}
}
if !infSeen {
n, err = writeSample(
name+"_bucket", metric,
model.BucketLabel, "+Inf",
w, name, "_bucket", metric,
model.BucketLabel, math.Inf(+1),
float64(metric.Histogram.GetSampleCount()),
out,
)
if err != nil {
return written, err
}
written += n
if err != nil {
return
}
}
n, err = writeSample(
name+"_sum", metric, "", "",
w, name, "_sum", metric, "", 0,
metric.Histogram.GetSampleSum(),
out,
)
if err != nil {
return written, err
}
written += n
if err != nil {
return
}
n, err = writeSample(
name+"_count", metric, "", "",
w, name, "_count", metric, "", 0,
float64(metric.Histogram.GetSampleCount()),
out,
)
default:
return written, fmt.Errorf(
@ -188,116 +265,204 @@ func MetricFamilyToText(out io.Writer, in *dto.MetricFamily) (int, error) {
}
written += n
if err != nil {
return written, err
return
}
}
return written, nil
return
}
// writeSample writes a single sample in text format to out, given the metric
// writeSample writes a single sample in text format to w, given the metric
// name, the metric proto message itself, optionally an additional label name
// and value (use empty strings if not required), and the value. The function
// returns the number of bytes written and any error encountered.
// with a float64 value (use empty string as label name if not required), and
// the value. The function returns the number of bytes written and any error
// encountered.
func writeSample(
name string,
w enhancedWriter,
name, suffix string,
metric *dto.Metric,
additionalLabelName, additionalLabelValue string,
additionalLabelName string, additionalLabelValue float64,
value float64,
out io.Writer,
) (int, error) {
var written int
n, err := fmt.Fprint(out, name)
n, err := w.WriteString(name)
written += n
if err != nil {
return written, err
}
n, err = labelPairsToText(
metric.Label,
additionalLabelName, additionalLabelValue,
out,
)
written += n
if err != nil {
return written, err
}
n, err = fmt.Fprintf(out, " %v", value)
written += n
if err != nil {
return written, err
}
if metric.TimestampMs != nil {
n, err = fmt.Fprintf(out, " %v", *metric.TimestampMs)
if suffix != "" {
n, err = w.WriteString(suffix)
written += n
if err != nil {
return written, err
}
}
n, err = out.Write([]byte{'\n'})
n, err = writeLabelPairs(
w, metric.Label, additionalLabelName, additionalLabelValue,
)
written += n
if err != nil {
return written, err
}
err = w.WriteByte(' ')
written++
if err != nil {
return written, err
}
n, err = writeFloat(w, value)
written += n
if err != nil {
return written, err
}
if metric.TimestampMs != nil {
err = w.WriteByte(' ')
written++
if err != nil {
return written, err
}
n, err = writeInt(w, *metric.TimestampMs)
written += n
if err != nil {
return written, err
}
}
err = w.WriteByte('\n')
written++
if err != nil {
return written, err
}
return written, nil
}
// labelPairsToText converts a slice of LabelPair proto messages plus the
// writeLabelPairs converts a slice of LabelPair proto messages plus the
// explicitly given additional label pair into text formatted as required by the
// text format and writes it to 'out'. An empty slice in combination with an
// empty string 'additionalLabelName' results in nothing being
// written. Otherwise, the label pairs are written, escaped as required by the
// text format, and enclosed in '{...}'. The function returns the number of
// bytes written and any error encountered.
func labelPairsToText(
// text format and writes it to 'w'. An empty slice in combination with an empty
// string 'additionalLabelName' results in nothing being written. Otherwise, the
// label pairs are written, escaped as required by the text format, and enclosed
// in '{...}'. The function returns the number of bytes written and any error
// encountered.
func writeLabelPairs(
w enhancedWriter,
in []*dto.LabelPair,
additionalLabelName, additionalLabelValue string,
out io.Writer,
additionalLabelName string, additionalLabelValue float64,
) (int, error) {
if len(in) == 0 && additionalLabelName == "" {
return 0, nil
}
var written int
separator := '{'
var (
written int
separator byte = '{'
)
for _, lp := range in {
n, err := fmt.Fprintf(
out, `%c%s="%s"`,
separator, lp.GetName(), escapeString(lp.GetValue(), true),
)
err := w.WriteByte(separator)
written++
if err != nil {
return written, err
}
n, err := w.WriteString(lp.GetName())
written += n
if err != nil {
return written, err
}
n, err = w.WriteString(`="`)
written += n
if err != nil {
return written, err
}
n, err = writeEscapedString(w, lp.GetValue(), true)
written += n
if err != nil {
return written, err
}
err = w.WriteByte('"')
written++
if err != nil {
return written, err
}
separator = ','
}
if additionalLabelName != "" {
n, err := fmt.Fprintf(
out, `%c%s="%s"`,
separator, additionalLabelName,
escapeString(additionalLabelValue, true),
)
err := w.WriteByte(separator)
written++
if err != nil {
return written, err
}
n, err := w.WriteString(additionalLabelName)
written += n
if err != nil {
return written, err
}
n, err = w.WriteString(`="`)
written += n
if err != nil {
return written, err
}
n, err = writeFloat(w, additionalLabelValue)
written += n
if err != nil {
return written, err
}
err = w.WriteByte('"')
written++
if err != nil {
return written, err
}
}
n, err := out.Write([]byte{'}'})
written += n
err := w.WriteByte('}')
written++
if err != nil {
return written, err
}
return written, nil
}
// writeEscapedString replaces '\' by '\\', new line character by '\n', and - if
// includeDoubleQuote is true - '"' by '\"'.
var (
escape = strings.NewReplacer("\\", `\\`, "\n", `\n`)
escapeWithDoubleQuote = strings.NewReplacer("\\", `\\`, "\n", `\n`, "\"", `\"`)
escaper = strings.NewReplacer("\\", `\\`, "\n", `\n`)
quotedEscaper = strings.NewReplacer("\\", `\\`, "\n", `\n`, "\"", `\"`)
)
// escapeString replaces '\' by '\\', new line character by '\n', and - if
// includeDoubleQuote is true - '"' by '\"'.
func escapeString(v string, includeDoubleQuote bool) string {
func writeEscapedString(w enhancedWriter, v string, includeDoubleQuote bool) (int, error) {
if includeDoubleQuote {
return escapeWithDoubleQuote.Replace(v)
return quotedEscaper.WriteString(w, v)
} else {
return escaper.WriteString(w, v)
}
return escape.Replace(v)
}
// writeFloat is equivalent to fmt.Fprint with a float64 argument but hardcodes
// a few common cases for increased efficiency. For non-hardcoded cases, it uses
// strconv.AppendFloat to avoid allocations, similar to writeInt.
func writeFloat(w enhancedWriter, f float64) (int, error) {
switch {
case f == 1:
return 1, w.WriteByte('1')
case f == 0:
return 1, w.WriteByte('0')
case f == -1:
return w.WriteString("-1")
case math.IsNaN(f):
return w.WriteString("NaN")
case math.IsInf(f, +1):
return w.WriteString("+Inf")
case math.IsInf(f, -1):
return w.WriteString("-Inf")
default:
bp := numBufPool.Get().(*[]byte)
*bp = strconv.AppendFloat((*bp)[:0], f, 'g', -1, 64)
written, err := w.Write(*bp)
numBufPool.Put(bp)
return written, err
}
}
// writeInt is equivalent to fmt.Fprint with an int64 argument but uses
// strconv.AppendInt with a byte slice taken from a sync.Pool to avoid
// allocations.
func writeInt(w enhancedWriter, i int64) (int, error) {
bp := numBufPool.Get().(*[]byte)
*bp = strconv.AppendInt((*bp)[:0], i, 10)
written, err := w.Write(*bp)
numBufPool.Put(bp)
return written, err
}

2
vendor/github.com/prometheus/common/expfmt/text_parse.go generated vendored
View file

@ -359,7 +359,7 @@ func (p *TextParser) startLabelValue() stateFn {
}
return p.readingValue
default:
p.parseError(fmt.Sprintf("unexpected end of label value %q", p.currentLabelPair.Value))
p.parseError(fmt.Sprintf("unexpected end of label value %q", p.currentLabelPair.GetValue()))
return nil
}
}

2
vendor/github.com/prometheus/common/model/time.go generated vendored
View file

@ -43,7 +43,7 @@ const (
// (1970-01-01 00:00 UTC) excluding leap seconds.
type Time int64
// Interval describes and interval between two timestamps.
// Interval describes an interval between two timestamps.
type Interval struct {
Start, End Time
}

16
vendor/github.com/prometheus/common/promlog/flag/flag.go generated vendored
View file

@ -25,9 +25,21 @@ const LevelFlagName = "log.level"
// LevelFlagHelp is the help description for the log.level flag.
const LevelFlagHelp = "Only log messages with the given severity or above. One of: [debug, info, warn, error]"
// FormatFlagName is the canonical flag name to configure the log format
// within Prometheus projects.
const FormatFlagName = "log.format"
// FormatFlagHelp is the help description for the log.format flag.
const FormatFlagHelp = "Output format of log messages. One of: [logfmt, json]"
// AddFlags adds the flags used by this package to the Kingpin application.
// To use the default Kingpin application, call AddFlags(kingpin.CommandLine)
func AddFlags(a *kingpin.Application, logLevel *promlog.AllowedLevel) {
func AddFlags(a *kingpin.Application, config *promlog.Config) {
config.Level = &promlog.AllowedLevel{}
a.Flag(LevelFlagName, LevelFlagHelp).
Default("info").SetValue(logLevel)
Default("info").SetValue(config.Level)
config.Format = &promlog.AllowedFormat{}
a.Flag(FormatFlagName, FormatFlagHelp).
Default("logfmt").SetValue(config.Format)
}

40
vendor/github.com/prometheus/common/promlog/log.go generated vendored
View file

@ -53,11 +53,43 @@ func (l *AllowedLevel) Set(s string) error {
return nil
}
// New returns a new leveled oklog logger in the logfmt format. Each logged line will be annotated
// AllowedFormat is a settable identifier for the output format that the logger can have.
type AllowedFormat struct {
s string
}
func (f *AllowedFormat) String() string {
return f.s
}
// Set updates the value of the allowed format.
func (f *AllowedFormat) Set(s string) error {
switch s {
case "logfmt", "json":
f.s = s
default:
return errors.Errorf("unrecognized log format %q", s)
}
return nil
}
// Config is a struct containing configurable settings for the logger
type Config struct {
Level *AllowedLevel
Format *AllowedFormat
}
// New returns a new leveled oklog logger. Each logged line will be annotated
// with a timestamp. The output always goes to stderr.
func New(al AllowedLevel) log.Logger {
l := log.NewLogfmtLogger(log.NewSyncWriter(os.Stderr))
l = level.NewFilter(l, al.o)
func New(config *Config) log.Logger {
var l log.Logger
if config.Format.s == "logfmt" {
l = log.NewLogfmtLogger(log.NewSyncWriter(os.Stderr))
} else {
l = log.NewJSONLogger(log.NewSyncWriter(os.Stderr))
}
l = level.NewFilter(l, config.Level.o)
l = log.With(l, "ts", log.DefaultTimestampUTC, "caller", log.DefaultCaller)
return l
}

2
vendor/github.com/prometheus/common/route/route.go generated vendored
View file

@ -1,10 +1,10 @@
package route
import (
"context"
"net/http"
"github.com/julienschmidt/httprouter"
"golang.org/x/net/context"
)
type param string

2
vendor/modules.txt vendored
View file

@ -175,7 +175,7 @@ github.com/prometheus/client_golang/prometheus/promhttp
github.com/prometheus/client_golang/prometheus/internal
# github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910
github.com/prometheus/client_model/go
# github.com/prometheus/common v0.0.0-20180518154759-7600349dcfe1
# github.com/prometheus/common v0.0.0-20181119215939-b36ad289a3ea
github.com/prometheus/common/model
github.com/prometheus/common/promlog
github.com/prometheus/common/promlog/flag

9
web/api/v1/api_test.go
View file

@ -272,7 +272,14 @@ func TestEndpoints(t *testing.T) {
al := promlog.AllowedLevel{}
al.Set("debug")
remote := remote.NewStorage(promlog.New(al), func() (int64, error) {
af := promlog.AllowedFormat{}
al.Set("logfmt")
promlogConfig := promlog.Config{
Level: &al,
Format: &af,
}
remote := remote.NewStorage(promlog.New(&promlogConfig), func() (int64, error) {
return 0, nil
}, 1*time.Second)