Update dependencies

This commit is contained in:
Manuel de Brito Fontes 2017-10-06 17:33:32 -03:00
parent bf5616c65b
commit d6d374b28d
13962 changed files with 48226 additions and 3618880 deletions

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// Copyright 2016 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package config
import (
"fmt"
"strings"
)
func checkOverflow(m map[string]interface{}, ctx string) error {
if len(m) > 0 {
var keys []string
for k := range m {
keys = append(keys, k)
}
return fmt.Errorf("unknown fields in %s: %s", ctx, strings.Join(keys, ", "))
}
return nil
}
// Secret special type for storing secrets.
type Secret string
// MarshalYAML implements the yaml.Marshaler interface for Secrets.
func (s Secret) MarshalYAML() (interface{}, error) {
if s != "" {
return "<secret>", nil
}
return nil, nil
}
//UnmarshalYAML implements the yaml.Unmarshaler interface for Secrets.
func (s *Secret) UnmarshalYAML(unmarshal func(interface{}) error) error {
type plain Secret
return unmarshal((*plain)(s))
}

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// Copyright 2016 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package config
import (
"crypto/tls"
"crypto/x509"
"fmt"
"io/ioutil"
"net/http"
"net/url"
"strings"
yaml "gopkg.in/yaml.v2"
)
// BasicAuth contains basic HTTP authentication credentials.
type BasicAuth struct {
Username string `yaml:"username"`
Password Secret `yaml:"password"`
// Catches all undefined fields and must be empty after parsing.
XXX map[string]interface{} `yaml:",inline"`
}
// URL is a custom URL type that allows validation at configuration load time.
type URL struct {
*url.URL
}
// UnmarshalYAML implements the yaml.Unmarshaler interface for URLs.
func (u *URL) UnmarshalYAML(unmarshal func(interface{}) error) error {
var s string
if err := unmarshal(&s); err != nil {
return err
}
urlp, err := url.Parse(s)
if err != nil {
return err
}
u.URL = urlp
return nil
}
// MarshalYAML implements the yaml.Marshaler interface for URLs.
func (u URL) MarshalYAML() (interface{}, error) {
if u.URL != nil {
return u.String(), nil
}
return nil, nil
}
// HTTPClientConfig configures an HTTP client.
type HTTPClientConfig struct {
// The HTTP basic authentication credentials for the targets.
BasicAuth *BasicAuth `yaml:"basic_auth,omitempty"`
// The bearer token for the targets.
BearerToken Secret `yaml:"bearer_token,omitempty"`
// The bearer token file for the targets.
BearerTokenFile string `yaml:"bearer_token_file,omitempty"`
// HTTP proxy server to use to connect to the targets.
ProxyURL URL `yaml:"proxy_url,omitempty"`
// TLSConfig to use to connect to the targets.
TLSConfig TLSConfig `yaml:"tls_config,omitempty"`
// Catches all undefined fields and must be empty after parsing.
XXX map[string]interface{} `yaml:",inline"`
}
func (c *HTTPClientConfig) validate() error {
if len(c.BearerToken) > 0 && len(c.BearerTokenFile) > 0 {
return fmt.Errorf("at most one of bearer_token & bearer_token_file must be configured")
}
if c.BasicAuth != nil && (len(c.BearerToken) > 0 || len(c.BearerTokenFile) > 0) {
return fmt.Errorf("at most one of basic_auth, bearer_token & bearer_token_file must be configured")
}
return nil
}
// UnmarshalYAML implements the yaml.Unmarshaler interface
func (c *HTTPClientConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
type plain HTTPClientConfig
err := unmarshal((*plain)(c))
if err != nil {
return err
}
err = c.validate()
if err != nil {
return c.validate()
}
return checkOverflow(c.XXX, "http_client_config")
}
// UnmarshalYAML implements the yaml.Unmarshaler interface.
func (a *BasicAuth) UnmarshalYAML(unmarshal func(interface{}) error) error {
type plain BasicAuth
err := unmarshal((*plain)(a))
if err != nil {
return err
}
return checkOverflow(a.XXX, "basic_auth")
}
// NewHTTPClientFromConfig returns a new HTTP client configured for the
// given config.HTTPClientConfig.
func NewHTTPClientFromConfig(cfg *HTTPClientConfig) (*http.Client, error) {
tlsConfig, err := NewTLSConfig(&cfg.TLSConfig)
if err != nil {
return nil, err
}
// It's the caller's job to handle timeouts
var rt http.RoundTripper = &http.Transport{
Proxy: http.ProxyURL(cfg.ProxyURL.URL),
DisableKeepAlives: true,
TLSClientConfig: tlsConfig,
}
// If a bearer token is provided, create a round tripper that will set the
// Authorization header correctly on each request.
bearerToken := cfg.BearerToken
if len(bearerToken) == 0 && len(cfg.BearerTokenFile) > 0 {
b, err := ioutil.ReadFile(cfg.BearerTokenFile)
if err != nil {
return nil, fmt.Errorf("unable to read bearer token file %s: %s", cfg.BearerTokenFile, err)
}
bearerToken = Secret(strings.TrimSpace(string(b)))
}
if len(bearerToken) > 0 {
rt = NewBearerAuthRoundTripper(bearerToken, rt)
}
if cfg.BasicAuth != nil {
rt = NewBasicAuthRoundTripper(cfg.BasicAuth.Username, Secret(cfg.BasicAuth.Password), rt)
}
// Return a new client with the configured round tripper.
return &http.Client{Transport: rt}, nil
}
type bearerAuthRoundTripper struct {
bearerToken Secret
rt http.RoundTripper
}
type basicAuthRoundTripper struct {
username string
password Secret
rt http.RoundTripper
}
// NewBasicAuthRoundTripper will apply a BASIC auth authorization header to a request unless it has
// already been set.
func NewBasicAuthRoundTripper(username string, password Secret, rt http.RoundTripper) http.RoundTripper {
return &basicAuthRoundTripper{username, password, rt}
}
func (rt *bearerAuthRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
if len(req.Header.Get("Authorization")) == 0 {
req = cloneRequest(req)
req.Header.Set("Authorization", "Bearer "+string(rt.bearerToken))
}
return rt.rt.RoundTrip(req)
}
// NewBearerAuthRoundTripper adds the provided bearer token to a request unless the authorization
// header has already been set.
func NewBearerAuthRoundTripper(bearer Secret, rt http.RoundTripper) http.RoundTripper {
return &bearerAuthRoundTripper{bearer, rt}
}
func (rt *basicAuthRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
if len(req.Header.Get("Authorization")) != 0 {
return rt.RoundTrip(req)
}
req = cloneRequest(req)
req.SetBasicAuth(rt.username, string(rt.password))
return rt.rt.RoundTrip(req)
}
// cloneRequest returns a clone of the provided *http.Request.
// The clone is a shallow copy of the struct and its Header map.
func cloneRequest(r *http.Request) *http.Request {
// Shallow copy of the struct.
r2 := new(http.Request)
*r2 = *r
// Deep copy of the Header.
r2.Header = make(http.Header)
for k, s := range r.Header {
r2.Header[k] = s
}
return r2
}
// NewTLSConfig creates a new tls.Config from the given config.TLSConfig.
func NewTLSConfig(cfg *TLSConfig) (*tls.Config, error) {
tlsConfig := &tls.Config{InsecureSkipVerify: cfg.InsecureSkipVerify}
// If a CA cert is provided then let's read it in so we can validate the
// scrape target's certificate properly.
if len(cfg.CAFile) > 0 {
caCertPool := x509.NewCertPool()
// Load CA cert.
caCert, err := ioutil.ReadFile(cfg.CAFile)
if err != nil {
return nil, fmt.Errorf("unable to use specified CA cert %s: %s", cfg.CAFile, err)
}
caCertPool.AppendCertsFromPEM(caCert)
tlsConfig.RootCAs = caCertPool
}
if len(cfg.ServerName) > 0 {
tlsConfig.ServerName = cfg.ServerName
}
// If a client cert & key is provided then configure TLS config accordingly.
if len(cfg.CertFile) > 0 && len(cfg.KeyFile) == 0 {
return nil, fmt.Errorf("client cert file %q specified without client key file", cfg.CertFile)
} else if len(cfg.KeyFile) > 0 && len(cfg.CertFile) == 0 {
return nil, fmt.Errorf("client key file %q specified without client cert file", cfg.KeyFile)
} else if len(cfg.CertFile) > 0 && len(cfg.KeyFile) > 0 {
cert, err := tls.LoadX509KeyPair(cfg.CertFile, cfg.KeyFile)
if err != nil {
return nil, fmt.Errorf("unable to use specified client cert (%s) & key (%s): %s", cfg.CertFile, cfg.KeyFile, err)
}
tlsConfig.Certificates = []tls.Certificate{cert}
}
tlsConfig.BuildNameToCertificate()
return tlsConfig, nil
}
// TLSConfig configures the options for TLS connections.
type TLSConfig struct {
// The CA cert to use for the targets.
CAFile string `yaml:"ca_file,omitempty"`
// The client cert file for the targets.
CertFile string `yaml:"cert_file,omitempty"`
// The client key file for the targets.
KeyFile string `yaml:"key_file,omitempty"`
// Used to verify the hostname for the targets.
ServerName string `yaml:"server_name,omitempty"`
// Disable target certificate validation.
InsecureSkipVerify bool `yaml:"insecure_skip_verify"`
// Catches all undefined fields and must be empty after parsing.
XXX map[string]interface{} `yaml:",inline"`
}
// UnmarshalYAML implements the yaml.Unmarshaler interface.
func (c *TLSConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
type plain TLSConfig
if err := unmarshal((*plain)(c)); err != nil {
return err
}
return checkOverflow(c.XXX, "TLS config")
}
func (c HTTPClientConfig) String() string {
b, err := yaml.Marshal(c)
if err != nil {
return fmt.Sprintf("<error creating http client config string: %s>", err)
}
return string(b)
}

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// Copyright 2015 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package config
import (
"io/ioutil"
"net/http"
"net/url"
"strings"
"testing"
yaml "gopkg.in/yaml.v2"
)
var invalidHTTPClientConfigs = []struct {
httpClientConfigFile string
errMsg string
}{
{
httpClientConfigFile: "testdata/http.conf.bearer-token-and-file-set.bad.yml",
errMsg: "at most one of bearer_token & bearer_token_file must be configured",
},
{
httpClientConfigFile: "testdata/http.conf.empty.bad.yml",
errMsg: "at most one of basic_auth, bearer_token & bearer_token_file must be configured",
},
}
func TestAuthRoundTrippers(t *testing.T) {
cfg, _, err := LoadHTTPConfigFile("testdata/http.conf.good.yml")
if err != nil {
t.Errorf("Error loading HTTP client config: %v", err)
}
tlsConfig, err := NewTLSConfig(&cfg.TLSConfig)
if err != nil {
t.Errorf("Error creating new TLS config: %v", err)
}
rt := &http.Transport{
Proxy: http.ProxyURL(cfg.ProxyURL.URL),
DisableKeepAlives: true,
TLSClientConfig: tlsConfig,
}
req := new(http.Request)
bearerAuthRoundTripper := NewBearerAuthRoundTripper("mysecret", rt)
bearerAuthRoundTripper.RoundTrip(req)
basicAuthRoundTripper := NewBasicAuthRoundTripper("username", "password", rt)
basicAuthRoundTripper.RoundTrip(req)
}
func TestHideHTTPClientConfigSecrets(t *testing.T) {
c, _, err := LoadHTTPConfigFile("testdata/http.conf.good.yml")
if err != nil {
t.Errorf("Error parsing %s: %s", "testdata/http.conf.good.yml", err)
}
// String method must not reveal authentication credentials.
s := c.String()
if strings.Contains(s, "mysecret") {
t.Fatal("http client config's String method reveals authentication credentials.")
}
}
func mustParseURL(u string) *URL {
parsed, err := url.Parse(u)
if err != nil {
panic(err)
}
return &URL{URL: parsed}
}
func TestNewClientFromConfig(t *testing.T) {
cfg, _, err := LoadHTTPConfigFile("testdata/http.conf.good.yml")
if err != nil {
t.Errorf("Error loading HTTP client config: %v", err)
}
_, err = NewHTTPClientFromConfig(cfg)
if err != nil {
t.Errorf("Error creating new client from config: %v", err)
}
}
func TestNewClientFromInvalidConfig(t *testing.T) {
cfg, _, err := LoadHTTPConfigFile("testdata/http.conf.invalid-bearer-token-file.bad.yml")
if err != nil {
t.Errorf("Error loading HTTP client config: %v", err)
}
_, err = NewHTTPClientFromConfig(cfg)
if err == nil {
t.Error("Expected error creating new client from invalid config but got none")
}
if !strings.Contains(err.Error(), "unable to read bearer token file file: open file: no such file or directory") {
t.Errorf("Expected error with config but got: %s", err.Error())
}
}
func TestValidateHTTPConfig(t *testing.T) {
cfg, _, err := LoadHTTPConfigFile("testdata/http.conf.good.yml")
if err != nil {
t.Errorf("Error loading HTTP client config: %v", err)
}
err = cfg.validate()
if err != nil {
t.Fatalf("Error validating %s: %s", "testdata/http.conf.good.yml", err)
}
}
func TestInvalidHTTPConfigs(t *testing.T) {
for _, ee := range invalidHTTPClientConfigs {
_, _, err := LoadHTTPConfigFile(ee.httpClientConfigFile)
if err == nil {
t.Error("Expected error with config but got none")
continue
}
if !strings.Contains(err.Error(), ee.errMsg) {
t.Errorf("Expected error for invalid HTTP client configuration to contain %q but got: %s", ee.errMsg, err)
}
}
}
// LoadHTTPConfig parses the YAML input s into a HTTPClientConfig.
func LoadHTTPConfig(s string) (*HTTPClientConfig, error) {
cfg := &HTTPClientConfig{}
err := yaml.Unmarshal([]byte(s), cfg)
if err != nil {
return nil, err
}
return cfg, nil
}
// LoadHTTPConfigFile parses the given YAML file into a HTTPClientConfig.
func LoadHTTPConfigFile(filename string) (*HTTPClientConfig, []byte, error) {
content, err := ioutil.ReadFile(filename)
if err != nil {
return nil, nil, err
}
cfg, err := LoadHTTPConfig(string(content))
if err != nil {
return nil, nil, err
}
return cfg, content, nil
}

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basic_auth:
username: username
password: "mysecret"
bearer_token: mysecret
bearer_token_file: file

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basic_auth:
username: username
password: mysecret
bearer_token_file: file

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basic_auth:
username: username
password: "mysecret"
proxy_url: "http://remote.host"

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bearer_token_file: file

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cert_file: somefile

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insecure_skip_verify: true

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something_invalid: true

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key_file: somefile

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// Copyright 2016 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package config
import (
"crypto/tls"
"io/ioutil"
"reflect"
"strings"
"testing"
"gopkg.in/yaml.v2"
)
// LoadTLSConfig parses the given YAML file into a tls.Config.
func LoadTLSConfig(filename string) (*tls.Config, error) {
content, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
cfg := &TLSConfig{}
if err = yaml.Unmarshal(content, cfg); err != nil {
return nil, err
}
return NewTLSConfig(cfg)
}
var expectedTLSConfigs = []struct {
filename string
config *tls.Config
}{
{
filename: "tls_config.empty.good.yml",
config: &tls.Config{},
}, {
filename: "tls_config.insecure.good.yml",
config: &tls.Config{InsecureSkipVerify: true},
},
}
func TestValidTLSConfig(t *testing.T) {
for _, cfg := range expectedTLSConfigs {
cfg.config.BuildNameToCertificate()
got, err := LoadTLSConfig("testdata/" + cfg.filename)
if err != nil {
t.Errorf("Error parsing %s: %s", cfg.filename, err)
}
if !reflect.DeepEqual(*got, *cfg.config) {
t.Fatalf("%v: unexpected config result: \n\n%v\n expected\n\n%v", cfg.filename, got, cfg.config)
}
}
}
var expectedTLSConfigErrors = []struct {
filename string
errMsg string
}{
{
filename: "tls_config.invalid_field.bad.yml",
errMsg: "unknown fields in",
}, {
filename: "tls_config.cert_no_key.bad.yml",
errMsg: "specified without client key file",
}, {
filename: "tls_config.key_no_cert.bad.yml",
errMsg: "specified without client cert file",
},
}
func TestBadTLSConfigs(t *testing.T) {
for _, ee := range expectedTLSConfigErrors {
_, err := LoadTLSConfig("testdata/" + ee.filename)
if err == nil {
t.Errorf("Expected error parsing %s but got none", ee.filename)
continue
}
if !strings.Contains(err.Error(), ee.errMsg) {
t.Errorf("Expected error for %s to contain %q but got: %s", ee.filename, ee.errMsg, err)
}
}
}

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minimal_metric 1.234
another_metric -3e3 103948
# Even that:
no_labels{} 3
# HELP line for non-existing metric will be ignored.

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# A normal comment.
#
# TYPE name counter
name{labelname="val1",basename="basevalue"} NaN
name {labelname="val2",basename="base\"v\\al\nue"} 0.23 1234567890
# HELP name two-line\n doc str\\ing
# HELP name2 doc str"ing 2
# TYPE name2 gauge
name2{labelname="val2" ,basename = "basevalue2" } +Inf 54321
name2{ labelname = "val1" , }-Inf

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# TYPE my_summary summary
my_summary{n1="val1",quantile="0.5"} 110
decoy -1 -2
my_summary{n1="val1",quantile="0.9"} 140 1
my_summary_count{n1="val1"} 42
# Latest timestamp wins in case of a summary.
my_summary_sum{n1="val1"} 4711 2
fake_sum{n1="val1"} 2001
# TYPE another_summary summary
another_summary_count{n2="val2",n1="val1"} 20
my_summary_count{n2="val2",n1="val1"} 5 5
another_summary{n1="val1",n2="val2",quantile=".3"} -1.2
my_summary_sum{n1="val2"} 08 15
my_summary{n1="val3", quantile="0.2"} 4711
my_summary{n1="val1",n2="val2",quantile="-12.34",} NaN
# some
# funny comments
# HELP
# HELP
# HELP my_summary
# HELP my_summary

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# HELP request_duration_microseconds The response latency.
# TYPE request_duration_microseconds histogram
request_duration_microseconds_bucket{le="100"} 123
request_duration_microseconds_bucket{le="120"} 412
request_duration_microseconds_bucket{le="144"} 592
request_duration_microseconds_bucket{le="172.8"} 1524
request_duration_microseconds_bucket{le="+Inf"} 2693
request_duration_microseconds_sum 1.7560473e+06
request_duration_microseconds_count 2693

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bla 3.14

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@ -1 +0,0 @@
metric{label="\t"} 3.14

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@ -1 +0,0 @@
metric{label="bla"} 3.14 2 3

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metric{label="bla"} blubb

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# HELP metric one
# HELP metric two

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# TYPE metric counter
# TYPE metric untyped

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@ -1,3 +0,0 @@
metric 4.12
# TYPE metric counter

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# TYPE metric bla

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@ -1,2 +0,0 @@
# TYPE met-ric

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@ -1 +0,0 @@
@invalidmetric{label="bla"} 3.14 2

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@ -1 +0,0 @@
{label="bla"} 3.14 2

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@ -1,3 +0,0 @@
# TYPE metric histogram
metric_bucket{le="bla"} 3.14

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@ -1,3 +0,0 @@
metric{label="new
line"} 3.14

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@ -1 +0,0 @@
metric{@="bla"} 3.14

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metric{__name__="bla"} 3.14

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metric{label+="bla"} 3.14

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metric{label=bla} 3.14

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# TYPE metric summary
metric{quantile="bla"} 3.14

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metric{label="bla"+} 3.14

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@ -1 +0,0 @@
metric{label="bla"} 3.14 2.72

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@ -1 +0,0 @@
m{} 0

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[
{
"baseLabels": {
"__name__": "rpc_calls_total",
"job": "batch_job"
},
"docstring": "RPC calls.",
"metric": {
"type": "counter",
"value": [
{
"labels": {
"service": "zed"
},
"value": 25
},
{
"labels": {
"service": "bar"
},
"value": 24
}
]
}
},
{
"baseLabels": {
"__name__": "rpc_latency_microseconds"
},
"docstring": "RPC latency.",
"metric": {
"type": "histogram",
"value": [
{
"labels": {
"service": "foo"
},
"value": {
"0.010000": 15,
"0.990000": 17
}
}
]
}
}
]

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[
{
"baseLabels": {
"__name__": "rpc_calls_total",
"job": "batch_job"
},
"docstring": "RPC calls.",
"metric": {
"type": "counter",
"value": [
{
"labels": {
"servic|e": "zed"
},
"value": 25
},
{
"labels": {
"service": "bar"
},
"value": 24
}
]
}
},
{
"baseLabels": {
"__name__": "rpc_latency_microseconds"
},
"docstring": "RPC latency.",
"metric": {
"type": "histogram",
"value": [
{
"labels": {
"service": "foo"
},
"value": {
"0.010000": 15,
"0.990000": 17
}
}
]
}
}
]

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# HELP http_request_duration_microseconds The HTTP request latencies in microseconds.
# TYPE http_request_duration_microseconds summary
http_request_duration_microseconds{handler="/",quantile="0.5"} 0
http_request_duration_microseconds{handler="/",quantile="0.9"} 0
http_request_duration_microseconds{handler="/",quantile="0.99"} 0
http_request_duration_microseconds_sum{handler="/"} 0
http_request_duration_microseconds_count{handler="/"} 0
http_request_duration_microseconds{handler="/alerts",quantile="0.5"} 0
http_request_duration_microseconds{handler="/alerts",quantile="0.9"} 0
http_request_duration_microseconds{handler="/alerts",quantile="0.99"} 0
http_request_duration_microseconds_sum{handler="/alerts"} 0
http_request_duration_microseconds_count{handler="/alerts"} 0
http_request_duration_microseconds{handler="/api/metrics",quantile="0.5"} 0
http_request_duration_microseconds{handler="/api/metrics",quantile="0.9"} 0
http_request_duration_microseconds{handler="/api/metrics",quantile="0.99"} 0
http_request_duration_microseconds_sum{handler="/api/metrics"} 0
http_request_duration_microseconds_count{handler="/api/metrics"} 0
http_request_duration_microseconds{handler="/api/query",quantile="0.5"} 0
http_request_duration_microseconds{handler="/api/query",quantile="0.9"} 0
http_request_duration_microseconds{handler="/api/query",quantile="0.99"} 0
http_request_duration_microseconds_sum{handler="/api/query"} 0
http_request_duration_microseconds_count{handler="/api/query"} 0
http_request_duration_microseconds{handler="/api/query_range",quantile="0.5"} 0
http_request_duration_microseconds{handler="/api/query_range",quantile="0.9"} 0
http_request_duration_microseconds{handler="/api/query_range",quantile="0.99"} 0
http_request_duration_microseconds_sum{handler="/api/query_range"} 0
http_request_duration_microseconds_count{handler="/api/query_range"} 0
http_request_duration_microseconds{handler="/api/targets",quantile="0.5"} 0
http_request_duration_microseconds{handler="/api/targets",quantile="0.9"} 0
http_request_duration_microseconds{handler="/api/targets",quantile="0.99"} 0
http_request_duration_microseconds_sum{handler="/api/targets"} 0
http_request_duration_microseconds_count{handler="/api/targets"} 0
http_request_duration_microseconds{handler="/consoles/",quantile="0.5"} 0
http_request_duration_microseconds{handler="/consoles/",quantile="0.9"} 0
http_request_duration_microseconds{handler="/consoles/",quantile="0.99"} 0
http_request_duration_microseconds_sum{handler="/consoles/"} 0
http_request_duration_microseconds_count{handler="/consoles/"} 0
http_request_duration_microseconds{handler="/graph",quantile="0.5"} 0
http_request_duration_microseconds{handler="/graph",quantile="0.9"} 0
http_request_duration_microseconds{handler="/graph",quantile="0.99"} 0
http_request_duration_microseconds_sum{handler="/graph"} 0
http_request_duration_microseconds_count{handler="/graph"} 0
http_request_duration_microseconds{handler="/heap",quantile="0.5"} 0
http_request_duration_microseconds{handler="/heap",quantile="0.9"} 0
http_request_duration_microseconds{handler="/heap",quantile="0.99"} 0
http_request_duration_microseconds_sum{handler="/heap"} 0
http_request_duration_microseconds_count{handler="/heap"} 0
http_request_duration_microseconds{handler="/static/",quantile="0.5"} 0
http_request_duration_microseconds{handler="/static/",quantile="0.9"} 0
http_request_duration_microseconds{handler="/static/",quantile="0.99"} 0
http_request_duration_microseconds_sum{handler="/static/"} 0
http_request_duration_microseconds_count{handler="/static/"} 0
http_request_duration_microseconds{handler="prometheus",quantile="0.5"} 1307.275
http_request_duration_microseconds{handler="prometheus",quantile="0.9"} 1858.632
http_request_duration_microseconds{handler="prometheus",quantile="0.99"} 3087.384
http_request_duration_microseconds_sum{handler="prometheus"} 179886.5000000001
http_request_duration_microseconds_count{handler="prometheus"} 119
# HELP http_request_size_bytes The HTTP request sizes in bytes.
# TYPE http_request_size_bytes summary
http_request_size_bytes{handler="/",quantile="0.5"} 0
http_request_size_bytes{handler="/",quantile="0.9"} 0
http_request_size_bytes{handler="/",quantile="0.99"} 0
http_request_size_bytes_sum{handler="/"} 0
http_request_size_bytes_count{handler="/"} 0
http_request_size_bytes{handler="/alerts",quantile="0.5"} 0
http_request_size_bytes{handler="/alerts",quantile="0.9"} 0
http_request_size_bytes{handler="/alerts",quantile="0.99"} 0
http_request_size_bytes_sum{handler="/alerts"} 0
http_request_size_bytes_count{handler="/alerts"} 0
http_request_size_bytes{handler="/api/metrics",quantile="0.5"} 0
http_request_size_bytes{handler="/api/metrics",quantile="0.9"} 0
http_request_size_bytes{handler="/api/metrics",quantile="0.99"} 0
http_request_size_bytes_sum{handler="/api/metrics"} 0
http_request_size_bytes_count{handler="/api/metrics"} 0
http_request_size_bytes{handler="/api/query",quantile="0.5"} 0
http_request_size_bytes{handler="/api/query",quantile="0.9"} 0
http_request_size_bytes{handler="/api/query",quantile="0.99"} 0
http_request_size_bytes_sum{handler="/api/query"} 0
http_request_size_bytes_count{handler="/api/query"} 0
http_request_size_bytes{handler="/api/query_range",quantile="0.5"} 0
http_request_size_bytes{handler="/api/query_range",quantile="0.9"} 0
http_request_size_bytes{handler="/api/query_range",quantile="0.99"} 0
http_request_size_bytes_sum{handler="/api/query_range"} 0
http_request_size_bytes_count{handler="/api/query_range"} 0
http_request_size_bytes{handler="/api/targets",quantile="0.5"} 0
http_request_size_bytes{handler="/api/targets",quantile="0.9"} 0
http_request_size_bytes{handler="/api/targets",quantile="0.99"} 0
http_request_size_bytes_sum{handler="/api/targets"} 0
http_request_size_bytes_count{handler="/api/targets"} 0
http_request_size_bytes{handler="/consoles/",quantile="0.5"} 0
http_request_size_bytes{handler="/consoles/",quantile="0.9"} 0
http_request_size_bytes{handler="/consoles/",quantile="0.99"} 0
http_request_size_bytes_sum{handler="/consoles/"} 0
http_request_size_bytes_count{handler="/consoles/"} 0
http_request_size_bytes{handler="/graph",quantile="0.5"} 0
http_request_size_bytes{handler="/graph",quantile="0.9"} 0
http_request_size_bytes{handler="/graph",quantile="0.99"} 0
http_request_size_bytes_sum{handler="/graph"} 0
http_request_size_bytes_count{handler="/graph"} 0
http_request_size_bytes{handler="/heap",quantile="0.5"} 0
http_request_size_bytes{handler="/heap",quantile="0.9"} 0
http_request_size_bytes{handler="/heap",quantile="0.99"} 0
http_request_size_bytes_sum{handler="/heap"} 0
http_request_size_bytes_count{handler="/heap"} 0
http_request_size_bytes{handler="/static/",quantile="0.5"} 0
http_request_size_bytes{handler="/static/",quantile="0.9"} 0
http_request_size_bytes{handler="/static/",quantile="0.99"} 0
http_request_size_bytes_sum{handler="/static/"} 0
http_request_size_bytes_count{handler="/static/"} 0
http_request_size_bytes{handler="prometheus",quantile="0.5"} 291
http_request_size_bytes{handler="prometheus",quantile="0.9"} 291
http_request_size_bytes{handler="prometheus",quantile="0.99"} 291
http_request_size_bytes_sum{handler="prometheus"} 34488
http_request_size_bytes_count{handler="prometheus"} 119
# HELP http_requests_total Total number of HTTP requests made.
# TYPE http_requests_total counter
http_requests_total{code="200",handler="prometheus",method="get"} 119
# HELP http_response_size_bytes The HTTP response sizes in bytes.
# TYPE http_response_size_bytes summary
http_response_size_bytes{handler="/",quantile="0.5"} 0
http_response_size_bytes{handler="/",quantile="0.9"} 0
http_response_size_bytes{handler="/",quantile="0.99"} 0
http_response_size_bytes_sum{handler="/"} 0
http_response_size_bytes_count{handler="/"} 0
http_response_size_bytes{handler="/alerts",quantile="0.5"} 0
http_response_size_bytes{handler="/alerts",quantile="0.9"} 0
http_response_size_bytes{handler="/alerts",quantile="0.99"} 0
http_response_size_bytes_sum{handler="/alerts"} 0
http_response_size_bytes_count{handler="/alerts"} 0
http_response_size_bytes{handler="/api/metrics",quantile="0.5"} 0
http_response_size_bytes{handler="/api/metrics",quantile="0.9"} 0
http_response_size_bytes{handler="/api/metrics",quantile="0.99"} 0
http_response_size_bytes_sum{handler="/api/metrics"} 0
http_response_size_bytes_count{handler="/api/metrics"} 0
http_response_size_bytes{handler="/api/query",quantile="0.5"} 0
http_response_size_bytes{handler="/api/query",quantile="0.9"} 0
http_response_size_bytes{handler="/api/query",quantile="0.99"} 0
http_response_size_bytes_sum{handler="/api/query"} 0
http_response_size_bytes_count{handler="/api/query"} 0
http_response_size_bytes{handler="/api/query_range",quantile="0.5"} 0
http_response_size_bytes{handler="/api/query_range",quantile="0.9"} 0
http_response_size_bytes{handler="/api/query_range",quantile="0.99"} 0
http_response_size_bytes_sum{handler="/api/query_range"} 0
http_response_size_bytes_count{handler="/api/query_range"} 0
http_response_size_bytes{handler="/api/targets",quantile="0.5"} 0
http_response_size_bytes{handler="/api/targets",quantile="0.9"} 0
http_response_size_bytes{handler="/api/targets",quantile="0.99"} 0
http_response_size_bytes_sum{handler="/api/targets"} 0
http_response_size_bytes_count{handler="/api/targets"} 0
http_response_size_bytes{handler="/consoles/",quantile="0.5"} 0
http_response_size_bytes{handler="/consoles/",quantile="0.9"} 0
http_response_size_bytes{handler="/consoles/",quantile="0.99"} 0
http_response_size_bytes_sum{handler="/consoles/"} 0
http_response_size_bytes_count{handler="/consoles/"} 0
http_response_size_bytes{handler="/graph",quantile="0.5"} 0
http_response_size_bytes{handler="/graph",quantile="0.9"} 0
http_response_size_bytes{handler="/graph",quantile="0.99"} 0
http_response_size_bytes_sum{handler="/graph"} 0
http_response_size_bytes_count{handler="/graph"} 0
http_response_size_bytes{handler="/heap",quantile="0.5"} 0
http_response_size_bytes{handler="/heap",quantile="0.9"} 0
http_response_size_bytes{handler="/heap",quantile="0.99"} 0
http_response_size_bytes_sum{handler="/heap"} 0
http_response_size_bytes_count{handler="/heap"} 0
http_response_size_bytes{handler="/static/",quantile="0.5"} 0
http_response_size_bytes{handler="/static/",quantile="0.9"} 0
http_response_size_bytes{handler="/static/",quantile="0.99"} 0
http_response_size_bytes_sum{handler="/static/"} 0
http_response_size_bytes_count{handler="/static/"} 0
http_response_size_bytes{handler="prometheus",quantile="0.5"} 2049
http_response_size_bytes{handler="prometheus",quantile="0.9"} 2058
http_response_size_bytes{handler="prometheus",quantile="0.99"} 2064
http_response_size_bytes_sum{handler="prometheus"} 247001
http_response_size_bytes_count{handler="prometheus"} 119
# HELP process_cpu_seconds_total Total user and system CPU time spent in seconds.
# TYPE process_cpu_seconds_total counter
process_cpu_seconds_total 0.55
# HELP go_goroutines Number of goroutines that currently exist.
# TYPE go_goroutines gauge
go_goroutines 70
# HELP process_max_fds Maximum number of open file descriptors.
# TYPE process_max_fds gauge
process_max_fds 8192
# HELP process_open_fds Number of open file descriptors.
# TYPE process_open_fds gauge
process_open_fds 29
# HELP process_resident_memory_bytes Resident memory size in bytes.
# TYPE process_resident_memory_bytes gauge
process_resident_memory_bytes 5.3870592e+07
# HELP process_start_time_seconds Start time of the process since unix epoch in seconds.
# TYPE process_start_time_seconds gauge
process_start_time_seconds 1.42236894836e+09
# HELP process_virtual_memory_bytes Virtual memory size in bytes.
# TYPE process_virtual_memory_bytes gauge
process_virtual_memory_bytes 5.41478912e+08
# HELP prometheus_dns_sd_lookup_failures_total The number of DNS-SD lookup failures.
# TYPE prometheus_dns_sd_lookup_failures_total counter
prometheus_dns_sd_lookup_failures_total 0
# HELP prometheus_dns_sd_lookups_total The number of DNS-SD lookups.
# TYPE prometheus_dns_sd_lookups_total counter
prometheus_dns_sd_lookups_total 7
# HELP prometheus_evaluator_duration_milliseconds The duration for all evaluations to execute.
# TYPE prometheus_evaluator_duration_milliseconds summary
prometheus_evaluator_duration_milliseconds{quantile="0.01"} 0
prometheus_evaluator_duration_milliseconds{quantile="0.05"} 0
prometheus_evaluator_duration_milliseconds{quantile="0.5"} 0
prometheus_evaluator_duration_milliseconds{quantile="0.9"} 1
prometheus_evaluator_duration_milliseconds{quantile="0.99"} 1
prometheus_evaluator_duration_milliseconds_sum 12
prometheus_evaluator_duration_milliseconds_count 23
# HELP prometheus_local_storage_checkpoint_duration_milliseconds The duration (in milliseconds) it took to checkpoint in-memory metrics and head chunks.
# TYPE prometheus_local_storage_checkpoint_duration_milliseconds gauge
prometheus_local_storage_checkpoint_duration_milliseconds 0
# HELP prometheus_local_storage_chunk_ops_total The total number of chunk operations by their type.
# TYPE prometheus_local_storage_chunk_ops_total counter
prometheus_local_storage_chunk_ops_total{type="create"} 598
prometheus_local_storage_chunk_ops_total{type="persist"} 174
prometheus_local_storage_chunk_ops_total{type="pin"} 920
prometheus_local_storage_chunk_ops_total{type="transcode"} 415
prometheus_local_storage_chunk_ops_total{type="unpin"} 920
# HELP prometheus_local_storage_indexing_batch_latency_milliseconds Quantiles for batch indexing latencies in milliseconds.
# TYPE prometheus_local_storage_indexing_batch_latency_milliseconds summary
prometheus_local_storage_indexing_batch_latency_milliseconds{quantile="0.5"} 0
prometheus_local_storage_indexing_batch_latency_milliseconds{quantile="0.9"} 0
prometheus_local_storage_indexing_batch_latency_milliseconds{quantile="0.99"} 0
prometheus_local_storage_indexing_batch_latency_milliseconds_sum 0
prometheus_local_storage_indexing_batch_latency_milliseconds_count 1
# HELP prometheus_local_storage_indexing_batch_sizes Quantiles for indexing batch sizes (number of metrics per batch).
# TYPE prometheus_local_storage_indexing_batch_sizes summary
prometheus_local_storage_indexing_batch_sizes{quantile="0.5"} 2
prometheus_local_storage_indexing_batch_sizes{quantile="0.9"} 2
prometheus_local_storage_indexing_batch_sizes{quantile="0.99"} 2
prometheus_local_storage_indexing_batch_sizes_sum 2
prometheus_local_storage_indexing_batch_sizes_count 1
# HELP prometheus_local_storage_indexing_queue_capacity The capacity of the indexing queue.
# TYPE prometheus_local_storage_indexing_queue_capacity gauge
prometheus_local_storage_indexing_queue_capacity 16384
# HELP prometheus_local_storage_indexing_queue_length The number of metrics waiting to be indexed.
# TYPE prometheus_local_storage_indexing_queue_length gauge
prometheus_local_storage_indexing_queue_length 0
# HELP prometheus_local_storage_ingested_samples_total The total number of samples ingested.
# TYPE prometheus_local_storage_ingested_samples_total counter
prometheus_local_storage_ingested_samples_total 30473
# HELP prometheus_local_storage_invalid_preload_requests_total The total number of preload requests referring to a non-existent series. This is an indication of outdated label indexes.
# TYPE prometheus_local_storage_invalid_preload_requests_total counter
prometheus_local_storage_invalid_preload_requests_total 0
# HELP prometheus_local_storage_memory_chunkdescs The current number of chunk descriptors in memory.
# TYPE prometheus_local_storage_memory_chunkdescs gauge
prometheus_local_storage_memory_chunkdescs 1059
# HELP prometheus_local_storage_memory_chunks The current number of chunks in memory, excluding cloned chunks (i.e. chunks without a descriptor).
# TYPE prometheus_local_storage_memory_chunks gauge
prometheus_local_storage_memory_chunks 1020
# HELP prometheus_local_storage_memory_series The current number of series in memory.
# TYPE prometheus_local_storage_memory_series gauge
prometheus_local_storage_memory_series 424
# HELP prometheus_local_storage_persist_latency_microseconds A summary of latencies for persisting each chunk.
# TYPE prometheus_local_storage_persist_latency_microseconds summary
prometheus_local_storage_persist_latency_microseconds{quantile="0.5"} 30.377
prometheus_local_storage_persist_latency_microseconds{quantile="0.9"} 203.539
prometheus_local_storage_persist_latency_microseconds{quantile="0.99"} 2626.463
prometheus_local_storage_persist_latency_microseconds_sum 20424.415
prometheus_local_storage_persist_latency_microseconds_count 174
# HELP prometheus_local_storage_persist_queue_capacity The total capacity of the persist queue.
# TYPE prometheus_local_storage_persist_queue_capacity gauge
prometheus_local_storage_persist_queue_capacity 1024
# HELP prometheus_local_storage_persist_queue_length The current number of chunks waiting in the persist queue.
# TYPE prometheus_local_storage_persist_queue_length gauge
prometheus_local_storage_persist_queue_length 0
# HELP prometheus_local_storage_series_ops_total The total number of series operations by their type.
# TYPE prometheus_local_storage_series_ops_total counter
prometheus_local_storage_series_ops_total{type="create"} 2
prometheus_local_storage_series_ops_total{type="maintenance_in_memory"} 11
# HELP prometheus_notifications_latency_milliseconds Latency quantiles for sending alert notifications (not including dropped notifications).
# TYPE prometheus_notifications_latency_milliseconds summary
prometheus_notifications_latency_milliseconds{quantile="0.5"} 0
prometheus_notifications_latency_milliseconds{quantile="0.9"} 0
prometheus_notifications_latency_milliseconds{quantile="0.99"} 0
prometheus_notifications_latency_milliseconds_sum 0
prometheus_notifications_latency_milliseconds_count 0
# HELP prometheus_notifications_queue_capacity The capacity of the alert notifications queue.
# TYPE prometheus_notifications_queue_capacity gauge
prometheus_notifications_queue_capacity 100
# HELP prometheus_notifications_queue_length The number of alert notifications in the queue.
# TYPE prometheus_notifications_queue_length gauge
prometheus_notifications_queue_length 0
# HELP prometheus_rule_evaluation_duration_milliseconds The duration for a rule to execute.
# TYPE prometheus_rule_evaluation_duration_milliseconds summary
prometheus_rule_evaluation_duration_milliseconds{rule_type="alerting",quantile="0.5"} 0
prometheus_rule_evaluation_duration_milliseconds{rule_type="alerting",quantile="0.9"} 0
prometheus_rule_evaluation_duration_milliseconds{rule_type="alerting",quantile="0.99"} 2
prometheus_rule_evaluation_duration_milliseconds_sum{rule_type="alerting"} 12
prometheus_rule_evaluation_duration_milliseconds_count{rule_type="alerting"} 115
prometheus_rule_evaluation_duration_milliseconds{rule_type="recording",quantile="0.5"} 0
prometheus_rule_evaluation_duration_milliseconds{rule_type="recording",quantile="0.9"} 0
prometheus_rule_evaluation_duration_milliseconds{rule_type="recording",quantile="0.99"} 3
prometheus_rule_evaluation_duration_milliseconds_sum{rule_type="recording"} 15
prometheus_rule_evaluation_duration_milliseconds_count{rule_type="recording"} 115
# HELP prometheus_rule_evaluation_failures_total The total number of rule evaluation failures.
# TYPE prometheus_rule_evaluation_failures_total counter
prometheus_rule_evaluation_failures_total 0
# HELP prometheus_samples_queue_capacity Capacity of the queue for unwritten samples.
# TYPE prometheus_samples_queue_capacity gauge
prometheus_samples_queue_capacity 4096
# HELP prometheus_samples_queue_length Current number of items in the queue for unwritten samples. Each item comprises all samples exposed by one target as one metric family (i.e. metrics of the same name).
# TYPE prometheus_samples_queue_length gauge
prometheus_samples_queue_length 0
# HELP prometheus_target_interval_length_seconds Actual intervals between scrapes.
# TYPE prometheus_target_interval_length_seconds summary
prometheus_target_interval_length_seconds{interval="15s",quantile="0.01"} 14
prometheus_target_interval_length_seconds{interval="15s",quantile="0.05"} 14
prometheus_target_interval_length_seconds{interval="15s",quantile="0.5"} 15
prometheus_target_interval_length_seconds{interval="15s",quantile="0.9"} 15
prometheus_target_interval_length_seconds{interval="15s",quantile="0.99"} 15
prometheus_target_interval_length_seconds_sum{interval="15s"} 175
prometheus_target_interval_length_seconds_count{interval="15s"} 12
prometheus_target_interval_length_seconds{interval="1s",quantile="0.01"} 0
prometheus_target_interval_length_seconds{interval="1s",quantile="0.05"} 0
prometheus_target_interval_length_seconds{interval="1s",quantile="0.5"} 0
prometheus_target_interval_length_seconds{interval="1s",quantile="0.9"} 1
prometheus_target_interval_length_seconds{interval="1s",quantile="0.99"} 1
prometheus_target_interval_length_seconds_sum{interval="1s"} 55
prometheus_target_interval_length_seconds_count{interval="1s"} 117

View file

@ -1,89 +0,0 @@
// Copyright 2015 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build windows
package log
import (
"fmt"
"os"
"golang.org/x/sys/windows/svc/eventlog"
"github.com/sirupsen/logrus"
)
func init() {
setEventlogFormatter = func(l logger, name string, debugAsInfo bool) error {
if name == "" {
return fmt.Errorf("missing name parameter")
}
fmter, err := newEventlogger(name, debugAsInfo, l.entry.Logger.Formatter)
if err != nil {
fmt.Fprintf(os.Stderr, "error creating eventlog formatter: %v\n", err)
l.Errorf("can't connect logger to eventlog: %v", err)
return err
}
l.entry.Logger.Formatter = fmter
return nil
}
}
type eventlogger struct {
log *eventlog.Log
debugAsInfo bool
wrap logrus.Formatter
}
func newEventlogger(name string, debugAsInfo bool, fmter logrus.Formatter) (*eventlogger, error) {
logHandle, err := eventlog.Open(name)
if err != nil {
return nil, err
}
return &eventlogger{log: logHandle, debugAsInfo: debugAsInfo, wrap: fmter}, nil
}
func (s *eventlogger) Format(e *logrus.Entry) ([]byte, error) {
data, err := s.wrap.Format(e)
if err != nil {
fmt.Fprintf(os.Stderr, "eventlogger: can't format entry: %v\n", err)
return data, err
}
switch e.Level {
case logrus.PanicLevel:
fallthrough
case logrus.FatalLevel:
fallthrough
case logrus.ErrorLevel:
err = s.log.Error(102, e.Message)
case logrus.WarnLevel:
err = s.log.Warning(101, e.Message)
case logrus.InfoLevel:
err = s.log.Info(100, e.Message)
case logrus.DebugLevel:
if s.debugAsInfo {
err = s.log.Info(100, e.Message)
}
default:
err = s.log.Info(100, e.Message)
}
if err != nil {
fmt.Fprintf(os.Stderr, "eventlogger: can't send log to eventlog: %v\n", err)
}
return data, err
}

View file

@ -1,364 +0,0 @@
// Copyright 2015 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package log
import (
"fmt"
"io"
"io/ioutil"
"log"
"net/url"
"os"
"runtime"
"strconv"
"strings"
"github.com/sirupsen/logrus"
"gopkg.in/alecthomas/kingpin.v2"
)
// setSyslogFormatter is nil if the target architecture does not support syslog.
var setSyslogFormatter func(logger, string, string) error
// setEventlogFormatter is nil if the target OS does not support Eventlog (i.e., is not Windows).
var setEventlogFormatter func(logger, string, bool) error
func setJSONFormatter() {
origLogger.Formatter = &logrus.JSONFormatter{}
}
type loggerSettings struct {
level string
format string
}
func (s *loggerSettings) apply(ctx *kingpin.ParseContext) error {
err := baseLogger.SetLevel(s.level)
if err != nil {
return err
}
err = baseLogger.SetFormat(s.format)
return err
}
// 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) {
s := loggerSettings{}
kingpin.Flag("log.level", "Only log messages with the given severity or above. Valid levels: [debug, info, warn, error, fatal]").
Default(origLogger.Level.String()).
StringVar(&s.level)
defaultFormat := url.URL{Scheme: "logger", Opaque: "stderr"}
kingpin.Flag("log.format", `Set the log target and format. Example: "logger:syslog?appname=bob&local=7" or "logger:stdout?json=true"`).
Default(defaultFormat.String()).
StringVar(&s.format)
a.Action(s.apply)
}
// Logger is the interface for loggers used in the Prometheus components.
type Logger interface {
Debug(...interface{})
Debugln(...interface{})
Debugf(string, ...interface{})
Info(...interface{})
Infoln(...interface{})
Infof(string, ...interface{})
Warn(...interface{})
Warnln(...interface{})
Warnf(string, ...interface{})
Error(...interface{})
Errorln(...interface{})
Errorf(string, ...interface{})
Fatal(...interface{})
Fatalln(...interface{})
Fatalf(string, ...interface{})
With(key string, value interface{}) Logger
SetFormat(string) error
SetLevel(string) error
}
type logger struct {
entry *logrus.Entry
}
func (l logger) With(key string, value interface{}) Logger {
return logger{l.entry.WithField(key, value)}
}
// Debug logs a message at level Debug on the standard logger.
func (l logger) Debug(args ...interface{}) {
l.sourced().Debug(args...)
}
// Debug logs a message at level Debug on the standard logger.
func (l logger) Debugln(args ...interface{}) {
l.sourced().Debugln(args...)
}
// Debugf logs a message at level Debug on the standard logger.
func (l logger) Debugf(format string, args ...interface{}) {
l.sourced().Debugf(format, args...)
}
// Info logs a message at level Info on the standard logger.
func (l logger) Info(args ...interface{}) {
l.sourced().Info(args...)
}
// Info logs a message at level Info on the standard logger.
func (l logger) Infoln(args ...interface{}) {
l.sourced().Infoln(args...)
}
// Infof logs a message at level Info on the standard logger.
func (l logger) Infof(format string, args ...interface{}) {
l.sourced().Infof(format, args...)
}
// Warn logs a message at level Warn on the standard logger.
func (l logger) Warn(args ...interface{}) {
l.sourced().Warn(args...)
}
// Warn logs a message at level Warn on the standard logger.
func (l logger) Warnln(args ...interface{}) {
l.sourced().Warnln(args...)
}
// Warnf logs a message at level Warn on the standard logger.
func (l logger) Warnf(format string, args ...interface{}) {
l.sourced().Warnf(format, args...)
}
// Error logs a message at level Error on the standard logger.
func (l logger) Error(args ...interface{}) {
l.sourced().Error(args...)
}
// Error logs a message at level Error on the standard logger.
func (l logger) Errorln(args ...interface{}) {
l.sourced().Errorln(args...)
}
// Errorf logs a message at level Error on the standard logger.
func (l logger) Errorf(format string, args ...interface{}) {
l.sourced().Errorf(format, args...)
}
// Fatal logs a message at level Fatal on the standard logger.
func (l logger) Fatal(args ...interface{}) {
l.sourced().Fatal(args...)
}
// Fatal logs a message at level Fatal on the standard logger.
func (l logger) Fatalln(args ...interface{}) {
l.sourced().Fatalln(args...)
}
// Fatalf logs a message at level Fatal on the standard logger.
func (l logger) Fatalf(format string, args ...interface{}) {
l.sourced().Fatalf(format, args...)
}
func (l logger) SetLevel(level string) error {
lvl, err := logrus.ParseLevel(level)
if err != nil {
return err
}
l.entry.Logger.Level = lvl
return nil
}
func (l logger) SetFormat(format string) error {
u, err := url.Parse(format)
if err != nil {
return err
}
if u.Scheme != "logger" {
return fmt.Errorf("invalid scheme %s", u.Scheme)
}
jsonq := u.Query().Get("json")
if jsonq == "true" {
setJSONFormatter()
}
switch u.Opaque {
case "syslog":
if setSyslogFormatter == nil {
return fmt.Errorf("system does not support syslog")
}
appname := u.Query().Get("appname")
facility := u.Query().Get("local")
return setSyslogFormatter(l, appname, facility)
case "eventlog":
if setEventlogFormatter == nil {
return fmt.Errorf("system does not support eventlog")
}
name := u.Query().Get("name")
debugAsInfo := false
debugAsInfoRaw := u.Query().Get("debugAsInfo")
if parsedDebugAsInfo, err := strconv.ParseBool(debugAsInfoRaw); err == nil {
debugAsInfo = parsedDebugAsInfo
}
return setEventlogFormatter(l, name, debugAsInfo)
case "stdout":
l.entry.Logger.Out = os.Stdout
case "stderr":
l.entry.Logger.Out = os.Stderr
default:
return fmt.Errorf("unsupported logger %q", u.Opaque)
}
return nil
}
// sourced adds a source field to the logger that contains
// the file name and line where the logging happened.
func (l logger) sourced() *logrus.Entry {
_, file, line, ok := runtime.Caller(2)
if !ok {
file = "<???>"
line = 1
} else {
slash := strings.LastIndex(file, "/")
file = file[slash+1:]
}
return l.entry.WithField("source", fmt.Sprintf("%s:%d", file, line))
}
var origLogger = logrus.New()
var baseLogger = logger{entry: logrus.NewEntry(origLogger)}
// Base returns the default Logger logging to
func Base() Logger {
return baseLogger
}
// NewLogger returns a new Logger logging to out.
func NewLogger(w io.Writer) Logger {
l := logrus.New()
l.Out = w
return logger{entry: logrus.NewEntry(l)}
}
// NewNopLogger returns a logger that discards all log messages.
func NewNopLogger() Logger {
l := logrus.New()
l.Out = ioutil.Discard
return logger{entry: logrus.NewEntry(l)}
}
// With adds a field to the logger.
func With(key string, value interface{}) Logger {
return baseLogger.With(key, value)
}
// Debug logs a message at level Debug on the standard logger.
func Debug(args ...interface{}) {
baseLogger.sourced().Debug(args...)
}
// Debugln logs a message at level Debug on the standard logger.
func Debugln(args ...interface{}) {
baseLogger.sourced().Debugln(args...)
}
// Debugf logs a message at level Debug on the standard logger.
func Debugf(format string, args ...interface{}) {
baseLogger.sourced().Debugf(format, args...)
}
// Info logs a message at level Info on the standard logger.
func Info(args ...interface{}) {
baseLogger.sourced().Info(args...)
}
// Infoln logs a message at level Info on the standard logger.
func Infoln(args ...interface{}) {
baseLogger.sourced().Infoln(args...)
}
// Infof logs a message at level Info on the standard logger.
func Infof(format string, args ...interface{}) {
baseLogger.sourced().Infof(format, args...)
}
// Warn logs a message at level Warn on the standard logger.
func Warn(args ...interface{}) {
baseLogger.sourced().Warn(args...)
}
// Warnln logs a message at level Warn on the standard logger.
func Warnln(args ...interface{}) {
baseLogger.sourced().Warnln(args...)
}
// Warnf logs a message at level Warn on the standard logger.
func Warnf(format string, args ...interface{}) {
baseLogger.sourced().Warnf(format, args...)
}
// Error logs a message at level Error on the standard logger.
func Error(args ...interface{}) {
baseLogger.sourced().Error(args...)
}
// Errorln logs a message at level Error on the standard logger.
func Errorln(args ...interface{}) {
baseLogger.sourced().Errorln(args...)
}
// Errorf logs a message at level Error on the standard logger.
func Errorf(format string, args ...interface{}) {
baseLogger.sourced().Errorf(format, args...)
}
// Fatal logs a message at level Fatal on the standard logger.
func Fatal(args ...interface{}) {
baseLogger.sourced().Fatal(args...)
}
// Fatalln logs a message at level Fatal on the standard logger.
func Fatalln(args ...interface{}) {
baseLogger.sourced().Fatalln(args...)
}
// Fatalf logs a message at level Fatal on the standard logger.
func Fatalf(format string, args ...interface{}) {
baseLogger.sourced().Fatalf(format, args...)
}
// AddHook adds hook to Prometheus' original logger.
func AddHook(hook logrus.Hook) {
origLogger.Hooks.Add(hook)
}
type errorLogWriter struct{}
func (errorLogWriter) Write(b []byte) (int, error) {
baseLogger.sourced().Error(string(b))
return len(b), nil
}
// NewErrorLogger returns a log.Logger that is meant to be used
// in the ErrorLog field of an http.Server to log HTTP server errors.
func NewErrorLogger() *log.Logger {
return log.New(&errorLogWriter{}, "", 0)
}

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@ -1,39 +0,0 @@
// Copyright 2015 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package log
import (
"bytes"
"regexp"
"testing"
"github.com/sirupsen/logrus"
)
func TestFileLineLogging(t *testing.T) {
var buf bytes.Buffer
origLogger.Out = &buf
origLogger.Formatter = &logrus.TextFormatter{
DisableColors: true,
}
// The default logging level should be "info".
Debug("This debug-level line should not show up in the output.")
Infof("This %s-level line should show up in the output.", "info")
re := `^time=".*" level=info msg="This info-level line should show up in the output." source="log_test.go:33"\n$`
if !regexp.MustCompile(re).Match(buf.Bytes()) {
t.Fatalf("%q did not match expected regex %q", buf.String(), re)
}
}

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@ -1,126 +0,0 @@
// Copyright 2015 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build !windows,!nacl,!plan9
package log
import (
"fmt"
"log/syslog"
"os"
"github.com/sirupsen/logrus"
)
var _ logrus.Formatter = (*syslogger)(nil)
func init() {
setSyslogFormatter = func(l logger, appname, local string) error {
if appname == "" {
return fmt.Errorf("missing appname parameter")
}
if local == "" {
return fmt.Errorf("missing local parameter")
}
fmter, err := newSyslogger(appname, local, l.entry.Logger.Formatter)
if err != nil {
fmt.Fprintf(os.Stderr, "error creating syslog formatter: %v\n", err)
l.entry.Errorf("can't connect logger to syslog: %v", err)
return err
}
l.entry.Logger.Formatter = fmter
return nil
}
}
var prefixTag []byte
type syslogger struct {
wrap logrus.Formatter
out *syslog.Writer
}
func newSyslogger(appname string, facility string, fmter logrus.Formatter) (*syslogger, error) {
priority, err := getFacility(facility)
if err != nil {
return nil, err
}
out, err := syslog.New(priority, appname)
_, isJSON := fmter.(*logrus.JSONFormatter)
if isJSON {
// add cee tag to json formatted syslogs
prefixTag = []byte("@cee:")
}
return &syslogger{
out: out,
wrap: fmter,
}, err
}
func getFacility(facility string) (syslog.Priority, error) {
switch facility {
case "0":
return syslog.LOG_LOCAL0, nil
case "1":
return syslog.LOG_LOCAL1, nil
case "2":
return syslog.LOG_LOCAL2, nil
case "3":
return syslog.LOG_LOCAL3, nil
case "4":
return syslog.LOG_LOCAL4, nil
case "5":
return syslog.LOG_LOCAL5, nil
case "6":
return syslog.LOG_LOCAL6, nil
case "7":
return syslog.LOG_LOCAL7, nil
}
return syslog.LOG_LOCAL0, fmt.Errorf("invalid local(%s) for syslog", facility)
}
func (s *syslogger) Format(e *logrus.Entry) ([]byte, error) {
data, err := s.wrap.Format(e)
if err != nil {
fmt.Fprintf(os.Stderr, "syslogger: can't format entry: %v\n", err)
return data, err
}
// only append tag to data sent to syslog (line), not to what
// is returned
line := string(append(prefixTag, data...))
switch e.Level {
case logrus.PanicLevel:
err = s.out.Crit(line)
case logrus.FatalLevel:
err = s.out.Crit(line)
case logrus.ErrorLevel:
err = s.out.Err(line)
case logrus.WarnLevel:
err = s.out.Warning(line)
case logrus.InfoLevel:
err = s.out.Info(line)
case logrus.DebugLevel:
err = s.out.Debug(line)
default:
err = s.out.Notice(line)
}
if err != nil {
fmt.Fprintf(os.Stderr, "syslogger: can't send log to syslog: %v\n", err)
}
return data, err
}

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@ -1,52 +0,0 @@
// Copyright 2015 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build !windows,!nacl,!plan9
package log
import (
"errors"
"log/syslog"
"testing"
)
func TestGetFacility(t *testing.T) {
testCases := []struct {
facility string
expectedPriority syslog.Priority
expectedErr error
}{
{"0", syslog.LOG_LOCAL0, nil},
{"1", syslog.LOG_LOCAL1, nil},
{"2", syslog.LOG_LOCAL2, nil},
{"3", syslog.LOG_LOCAL3, nil},
{"4", syslog.LOG_LOCAL4, nil},
{"5", syslog.LOG_LOCAL5, nil},
{"6", syslog.LOG_LOCAL6, nil},
{"7", syslog.LOG_LOCAL7, nil},
{"8", syslog.LOG_LOCAL0, errors.New("invalid local(8) for syslog")},
}
for _, tc := range testCases {
priority, err := getFacility(tc.facility)
if err != tc.expectedErr {
if err.Error() != tc.expectedErr.Error() {
t.Errorf("want %s, got %s", tc.expectedErr.Error(), err.Error())
}
}
if priority != tc.expectedPriority {
t.Errorf("want %q, got %q", tc.expectedPriority, priority)
}
}
}

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@ -1,33 +0,0 @@
// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package flag
import (
"github.com/prometheus/common/promlog"
kingpin "gopkg.in/alecthomas/kingpin.v2"
)
// LevelFlagName is the canonical flag name to configure the allowed log level
// within Prometheus projects.
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]"
// 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) {
a.Flag(LevelFlagName, LevelFlagHelp).
Default("info").SetValue(logLevel)
}

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@ -1,63 +0,0 @@
// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package promlog defines standardised ways to initialize Go kit loggers
// across Prometheus components.
// It should typically only ever be imported by main packages.
package promlog
import (
"os"
"github.com/go-kit/kit/log"
"github.com/go-kit/kit/log/level"
"github.com/pkg/errors"
)
// AllowedLevel is a settable identifier for the minimum level a log entry
// must be have.
type AllowedLevel struct {
s string
o level.Option
}
func (l *AllowedLevel) String() string {
return l.s
}
// Set updates the value of the allowed level.
func (l *AllowedLevel) Set(s string) error {
switch s {
case "debug":
l.o = level.AllowDebug()
case "info":
l.o = level.AllowInfo()
case "warn":
l.o = level.AllowWarn()
case "error":
l.o = level.AllowError()
default:
return errors.Errorf("unrecognized log level %q", s)
}
l.s = s
return nil
}
// New returns a new leveled oklog logger in the logfmt format. 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)
l = log.With(l, "ts", log.DefaultTimestampUTC, "caller", log.DefaultCaller)
return l
}

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@ -1,100 +0,0 @@
package route
import (
"net/http"
"github.com/julienschmidt/httprouter"
"golang.org/x/net/context"
)
type param string
// Param returns param p for the context.
func Param(ctx context.Context, p string) string {
return ctx.Value(param(p)).(string)
}
// WithParam returns a new context with param p set to v.
func WithParam(ctx context.Context, p, v string) context.Context {
return context.WithValue(ctx, param(p), v)
}
// Router wraps httprouter.Router and adds support for prefixed sub-routers
// and per-request context injections.
type Router struct {
rtr *httprouter.Router
prefix string
}
// New returns a new Router.
func New() *Router {
return &Router{
rtr: httprouter.New(),
}
}
// WithPrefix returns a router that prefixes all registered routes with prefix.
func (r *Router) WithPrefix(prefix string) *Router {
return &Router{rtr: r.rtr, prefix: r.prefix + prefix}
}
// handle turns a HandlerFunc into an httprouter.Handle.
func (r *Router) handle(h http.HandlerFunc) httprouter.Handle {
return func(w http.ResponseWriter, req *http.Request, params httprouter.Params) {
ctx, cancel := context.WithCancel(req.Context())
defer cancel()
for _, p := range params {
ctx = context.WithValue(ctx, param(p.Key), p.Value)
}
h(w, req.WithContext(ctx))
}
}
// Get registers a new GET route.
func (r *Router) Get(path string, h http.HandlerFunc) {
r.rtr.GET(r.prefix+path, r.handle(h))
}
// Options registers a new OPTIONS route.
func (r *Router) Options(path string, h http.HandlerFunc) {
r.rtr.OPTIONS(r.prefix+path, r.handle(h))
}
// Del registers a new DELETE route.
func (r *Router) Del(path string, h http.HandlerFunc) {
r.rtr.DELETE(r.prefix+path, r.handle(h))
}
// Put registers a new PUT route.
func (r *Router) Put(path string, h http.HandlerFunc) {
r.rtr.PUT(r.prefix+path, r.handle(h))
}
// Post registers a new POST route.
func (r *Router) Post(path string, h http.HandlerFunc) {
r.rtr.POST(r.prefix+path, r.handle(h))
}
// Redirect takes an absolute path and sends an internal HTTP redirect for it,
// prefixed by the router's path prefix. Note that this method does not include
// functionality for handling relative paths or full URL redirects.
func (r *Router) Redirect(w http.ResponseWriter, req *http.Request, path string, code int) {
http.Redirect(w, req, r.prefix+path, code)
}
// ServeHTTP implements http.Handler.
func (r *Router) ServeHTTP(w http.ResponseWriter, req *http.Request) {
r.rtr.ServeHTTP(w, req)
}
// FileServe returns a new http.HandlerFunc that serves files from dir.
// Using routes must provide the *filepath parameter.
func FileServe(dir string) http.HandlerFunc {
fs := http.FileServer(http.Dir(dir))
return func(w http.ResponseWriter, r *http.Request) {
r.URL.Path = Param(r.Context(), "filepath")
fs.ServeHTTP(w, r)
}
}

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@ -1,44 +0,0 @@
package route
import (
"net/http"
"net/http/httptest"
"testing"
)
func TestRedirect(t *testing.T) {
router := New().WithPrefix("/test/prefix")
w := httptest.NewRecorder()
r, err := http.NewRequest("GET", "http://localhost:9090/foo", nil)
if err != nil {
t.Fatalf("Error building test request: %s", err)
}
router.Redirect(w, r, "/some/endpoint", http.StatusFound)
if w.Code != http.StatusFound {
t.Fatalf("Unexpected redirect status code: got %d, want %d", w.Code, http.StatusFound)
}
want := "/test/prefix/some/endpoint"
got := w.Header()["Location"][0]
if want != got {
t.Fatalf("Unexpected redirect location: got %s, want %s", got, want)
}
}
func TestContext(t *testing.T) {
router := New()
router.Get("/test/:foo/", func(w http.ResponseWriter, r *http.Request) {
want := "bar"
got := Param(r.Context(), "foo")
if want != got {
t.Fatalf("Unexpected context value: want %q, got %q", want, got)
}
})
r, err := http.NewRequest("GET", "http://localhost:9090/test/bar/", nil)
if err != nil {
t.Fatalf("Error building test request: %s", err)
}
router.ServeHTTP(nil, r)
}

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@ -1,89 +0,0 @@
// Copyright 2016 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package version
import (
"bytes"
"fmt"
"runtime"
"strings"
"text/template"
"github.com/prometheus/client_golang/prometheus"
)
// Build information. Populated at build-time.
var (
Version string
Revision string
Branch string
BuildUser string
BuildDate string
GoVersion = runtime.Version()
)
// NewCollector returns a collector which exports metrics about current version information.
func NewCollector(program string) *prometheus.GaugeVec {
buildInfo := prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Namespace: program,
Name: "build_info",
Help: fmt.Sprintf(
"A metric with a constant '1' value labeled by version, revision, branch, and goversion from which %s was built.",
program,
),
},
[]string{"version", "revision", "branch", "goversion"},
)
buildInfo.WithLabelValues(Version, Revision, Branch, GoVersion).Set(1)
return buildInfo
}
// versionInfoTmpl contains the template used by Info.
var versionInfoTmpl = `
{{.program}}, version {{.version}} (branch: {{.branch}}, revision: {{.revision}})
build user: {{.buildUser}}
build date: {{.buildDate}}
go version: {{.goVersion}}
`
// Print returns version information.
func Print(program string) string {
m := map[string]string{
"program": program,
"version": Version,
"revision": Revision,
"branch": Branch,
"buildUser": BuildUser,
"buildDate": BuildDate,
"goVersion": GoVersion,
}
t := template.Must(template.New("version").Parse(versionInfoTmpl))
var buf bytes.Buffer
if err := t.ExecuteTemplate(&buf, "version", m); err != nil {
panic(err)
}
return strings.TrimSpace(buf.String())
}
// Info returns version, branch and revision information.
func Info() string {
return fmt.Sprintf("(version=%s, branch=%s, revision=%s)", Version, Branch, Revision)
}
// BuildContext returns goVersion, buildUser and buildDate information.
func BuildContext() string {
return fmt.Sprintf("(go=%s, user=%s, date=%s)", GoVersion, BuildUser, BuildDate)
}