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Moved configuration into relabel package. (#4955)

Browse Source 
Adapted top dir relabel to use pkg relabel structs.

Removal of this in a separate tracked here: https://github.com/prometheus/prometheus/issues/3647

Signed-off-by: Bartek Plotka <bwplotka@gmail.com>
This commit is contained in:
Bartek Płotka 2018-12-18 11:26:36 +00:00 committed by Brian Brazil
parent 44bec482fb
commit 62c8337e77
12 changed files with 419 additions and 413 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

167
config/config.go
View File

@ -22,6 +22,8 @@ import (
"strings"
"time"
"github.com/prometheus/prometheus/pkg/relabel"
config_util "github.com/prometheus/common/config"
"github.com/prometheus/common/model"
sd_config "github.com/prometheus/prometheus/discovery/config"
@ -29,8 +31,7 @@ import (
)
var (
patRulePath = regexp.MustCompile(`^[^*]*(\*[^/]*)?$`)
relabelTarget = regexp.MustCompile(`^(?:(?:[a-zA-Z_]|\$(?:\{\w+\}|\w+))+\w*)+$`)
patRulePath = regexp.MustCompile(`^[^*]*(\*[^/]*)?$`)
)
// Load parses the YAML input s into a Config.
@ -92,14 +93,6 @@ var (
Timeout: model.Duration(10 * time.Second),
}
// DefaultRelabelConfig is the default Relabel configuration.
DefaultRelabelConfig = RelabelConfig{
Action: RelabelReplace,
Separator: ";",
Regex: MustNewRegexp("(.*)"),
Replacement: "$1",
}
// DefaultRemoteWriteConfig is the default remote write configuration.
DefaultRemoteWriteConfig = RemoteWriteConfig{
RemoteTimeout: model.Duration(30 * time.Second),
@ -350,9 +343,9 @@ type ScrapeConfig struct {
HTTPClientConfig config_util.HTTPClientConfig `yaml:",inline"`
// List of target relabel configurations.
RelabelConfigs []*RelabelConfig `yaml:"relabel_configs,omitempty"`
RelabelConfigs []*relabel.Config `yaml:"relabel_configs,omitempty"`
// List of metric relabel configurations.
MetricRelabelConfigs []*RelabelConfig `yaml:"metric_relabel_configs,omitempty"`
MetricRelabelConfigs []*relabel.Config `yaml:"metric_relabel_configs,omitempty"`
}
// UnmarshalYAML implements the yaml.Unmarshaler interface.
@ -414,7 +407,7 @@ func (c *ScrapeConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
// AlertingConfig configures alerting and alertmanager related configs.
type AlertingConfig struct {
AlertRelabelConfigs []*RelabelConfig `yaml:"alert_relabel_configs,omitempty"`
AlertRelabelConfigs []*relabel.Config `yaml:"alert_relabel_configs,omitempty"`
AlertmanagerConfigs []*AlertmanagerConfig `yaml:"alertmanagers,omitempty"`
}
@ -452,7 +445,7 @@ type AlertmanagerConfig struct {
Timeout model.Duration `yaml:"timeout,omitempty"`
// List of Alertmanager relabel configurations.
RelabelConfigs []*RelabelConfig `yaml:"relabel_configs,omitempty"`
RelabelConfigs []*relabel.Config `yaml:"relabel_configs,omitempty"`
}
// UnmarshalYAML implements the yaml.Unmarshaler interface.
@ -524,151 +517,11 @@ type FileSDConfig struct {
RefreshInterval model.Duration `yaml:"refresh_interval,omitempty"`
}
// RelabelAction is the action to be performed on relabeling.
type RelabelAction string
const (
// RelabelReplace performs a regex replacement.
RelabelReplace RelabelAction = "replace"
// RelabelKeep drops targets for which the input does not match the regex.
RelabelKeep RelabelAction = "keep"
// RelabelDrop drops targets for which the input does match the regex.
RelabelDrop RelabelAction = "drop"
// RelabelHashMod sets a label to the modulus of a hash of labels.
RelabelHashMod RelabelAction = "hashmod"
// RelabelLabelMap copies labels to other labelnames based on a regex.
RelabelLabelMap RelabelAction = "labelmap"
// RelabelLabelDrop drops any label matching the regex.
RelabelLabelDrop RelabelAction = "labeldrop"
// RelabelLabelKeep drops any label not matching the regex.
RelabelLabelKeep RelabelAction = "labelkeep"
)
// UnmarshalYAML implements the yaml.Unmarshaler interface.
func (a *RelabelAction) UnmarshalYAML(unmarshal func(interface{}) error) error {
var s string
if err := unmarshal(&s); err != nil {
return err
}
switch act := RelabelAction(strings.ToLower(s)); act {
case RelabelReplace, RelabelKeep, RelabelDrop, RelabelHashMod, RelabelLabelMap, RelabelLabelDrop, RelabelLabelKeep:
*a = act
return nil
}
return fmt.Errorf("unknown relabel action %q", s)
}
// RelabelConfig is the configuration for relabeling of target label sets.
type RelabelConfig struct {
// A list of labels from which values are taken and concatenated
// with the configured separator in order.
SourceLabels model.LabelNames `yaml:"source_labels,flow,omitempty"`
// Separator is the string between concatenated values from the source labels.
Separator string `yaml:"separator,omitempty"`
// Regex against which the concatenation is matched.
Regex Regexp `yaml:"regex,omitempty"`
// Modulus to take of the hash of concatenated values from the source labels.
Modulus uint64 `yaml:"modulus,omitempty"`
// TargetLabel is the label to which the resulting string is written in a replacement.
// Regexp interpolation is allowed for the replace action.
TargetLabel string `yaml:"target_label,omitempty"`
// Replacement is the regex replacement pattern to be used.
Replacement string `yaml:"replacement,omitempty"`
// Action is the action to be performed for the relabeling.
Action RelabelAction `yaml:"action,omitempty"`
}
// UnmarshalYAML implements the yaml.Unmarshaler interface.
func (c *RelabelConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
*c = DefaultRelabelConfig
type plain RelabelConfig
if err := unmarshal((*plain)(c)); err != nil {
return err
}
if c.Regex.Regexp == nil {
c.Regex = MustNewRegexp("")
}
if c.Modulus == 0 && c.Action == RelabelHashMod {
return fmt.Errorf("relabel configuration for hashmod requires non-zero modulus")
}
if (c.Action == RelabelReplace || c.Action == RelabelHashMod) && c.TargetLabel == "" {
return fmt.Errorf("relabel configuration for %s action requires 'target_label' value", c.Action)
}
if c.Action == RelabelReplace && !relabelTarget.MatchString(c.TargetLabel) {
return fmt.Errorf("%q is invalid 'target_label' for %s action", c.TargetLabel, c.Action)
}
if c.Action == RelabelLabelMap && !relabelTarget.MatchString(c.Replacement) {
return fmt.Errorf("%q is invalid 'replacement' for %s action", c.Replacement, c.Action)
}
if c.Action == RelabelHashMod && !model.LabelName(c.TargetLabel).IsValid() {
return fmt.Errorf("%q is invalid 'target_label' for %s action", c.TargetLabel, c.Action)
}
if c.Action == RelabelLabelDrop || c.Action == RelabelLabelKeep {
if c.SourceLabels != nil ||
c.TargetLabel != DefaultRelabelConfig.TargetLabel ||
c.Modulus != DefaultRelabelConfig.Modulus ||
c.Separator != DefaultRelabelConfig.Separator ||
c.Replacement != DefaultRelabelConfig.Replacement {
return fmt.Errorf("%s action requires only 'regex', and no other fields", c.Action)
}
}
return nil
}
// Regexp encapsulates a regexp.Regexp and makes it YAML marshalable.
type Regexp struct {
*regexp.Regexp
original string
}
// NewRegexp creates a new anchored Regexp and returns an error if the
// passed-in regular expression does not compile.
func NewRegexp(s string) (Regexp, error) {
regex, err := regexp.Compile("^(?:" + s + ")$")
return Regexp{
Regexp: regex,
original: s,
}, err
}
// MustNewRegexp works like NewRegexp, but panics if the regular expression does not compile.
func MustNewRegexp(s string) Regexp {
re, err := NewRegexp(s)
if err != nil {
panic(err)
}
return re
}
// UnmarshalYAML implements the yaml.Unmarshaler interface.
func (re *Regexp) UnmarshalYAML(unmarshal func(interface{}) error) error {
var s string
if err := unmarshal(&s); err != nil {
return err
}
r, err := NewRegexp(s)
if err != nil {
return err
}
*re = r
return nil
}
// MarshalYAML implements the yaml.Marshaler interface.
func (re Regexp) MarshalYAML() (interface{}, error) {
if re.original != "" {
return re.original, nil
}
return nil, nil
}
// RemoteWriteConfig is the configuration for writing to remote storage.
type RemoteWriteConfig struct {
URL *config_util.URL `yaml:"url"`
RemoteTimeout model.Duration `yaml:"remote_timeout,omitempty"`
WriteRelabelConfigs []*RelabelConfig `yaml:"write_relabel_configs,omitempty"`
URL *config_util.URL `yaml:"url"`
RemoteTimeout model.Duration `yaml:"remote_timeout,omitempty"`
WriteRelabelConfigs []*relabel.Config `yaml:"write_relabel_configs,omitempty"`
// We cannot do proper Go type embedding below as the parser will then parse
// values arbitrarily into the overflow maps of further-down types.

107
config/config_test.go
View File

@ -23,6 +23,8 @@ import (
"testing"
"time"
"github.com/prometheus/prometheus/pkg/relabel"
"github.com/prometheus/prometheus/discovery/azure"
"github.com/prometheus/prometheus/discovery/consul"
"github.com/prometheus/prometheus/discovery/dns"
@ -71,13 +73,13 @@ var expectedConf = &Config{
{
URL: mustParseURL("http://remote1/push"),
RemoteTimeout: model.Duration(30 * time.Second),
WriteRelabelConfigs: []*RelabelConfig{
WriteRelabelConfigs: []*relabel.Config{
{
SourceLabels: model.LabelNames{"__name__"},
Separator: ";",
Regex: MustNewRegexp("expensive.*"),
Regex: relabel.MustNewRegexp("expensive.*"),
Replacement: "$1",
Action: RelabelDrop,
Action: relabel.Drop,
},
},
QueueConfig: DefaultQueueConfig,
@ -145,33 +147,33 @@ var expectedConf = &Config{
},
},
RelabelConfigs: []*RelabelConfig{
RelabelConfigs: []*relabel.Config{
{
SourceLabels: model.LabelNames{"job", "__meta_dns_name"},
TargetLabel: "job",
Separator: ";",
Regex: MustNewRegexp("(.*)some-[regex]"),
Regex: relabel.MustNewRegexp("(.*)some-[regex]"),
Replacement: "foo-${1}",
Action: RelabelReplace,
Action: relabel.Replace,
}, {
SourceLabels: model.LabelNames{"abc"},
TargetLabel: "cde",
Separator: ";",
Regex: DefaultRelabelConfig.Regex,
Replacement: DefaultRelabelConfig.Replacement,
Action: RelabelReplace,
Regex: relabel.DefaultRelabelConfig.Regex,
Replacement: relabel.DefaultRelabelConfig.Replacement,
Action: relabel.Replace,
}, {
TargetLabel: "abc",
Separator: ";",
Regex: DefaultRelabelConfig.Regex,
Regex: relabel.DefaultRelabelConfig.Regex,
Replacement: "static",
Action: RelabelReplace,
Action: relabel.Replace,
}, {
TargetLabel: "abc",
Separator: ";",
Regex: MustNewRegexp(""),
Regex: relabel.MustNewRegexp(""),
Replacement: "static",
Action: RelabelReplace,
Action: relabel.Replace,
},
},
},
@ -212,56 +214,56 @@ var expectedConf = &Config{
},
},
RelabelConfigs: []*RelabelConfig{
RelabelConfigs: []*relabel.Config{
{
SourceLabels: model.LabelNames{"job"},
Regex: MustNewRegexp("(.*)some-[regex]"),
Regex: relabel.MustNewRegexp("(.*)some-[regex]"),
Separator: ";",
Replacement: DefaultRelabelConfig.Replacement,
Action: RelabelDrop,
Replacement: relabel.DefaultRelabelConfig.Replacement,
Action: relabel.Drop,
},
{
SourceLabels: model.LabelNames{"__address__"},
TargetLabel: "__tmp_hash",
Regex: DefaultRelabelConfig.Regex,
Replacement: DefaultRelabelConfig.Replacement,
Regex: relabel.DefaultRelabelConfig.Regex,
Replacement: relabel.DefaultRelabelConfig.Replacement,
Modulus: 8,
Separator: ";",
Action: RelabelHashMod,
Action: relabel.HashMod,
},
{
SourceLabels: model.LabelNames{"__tmp_hash"},
Regex: MustNewRegexp("1"),
Regex: relabel.MustNewRegexp("1"),
Separator: ";",
Replacement: DefaultRelabelConfig.Replacement,
Action: RelabelKeep,
Replacement: relabel.DefaultRelabelConfig.Replacement,
Action: relabel.Keep,
},
{
Regex: MustNewRegexp("1"),
Regex: relabel.MustNewRegexp("1"),
Separator: ";",
Replacement: DefaultRelabelConfig.Replacement,
Action: RelabelLabelMap,
Replacement: relabel.DefaultRelabelConfig.Replacement,
Action: relabel.LabelMap,
},
{
Regex: MustNewRegexp("d"),
Regex: relabel.MustNewRegexp("d"),
Separator: ";",
Replacement: DefaultRelabelConfig.Replacement,
Action: RelabelLabelDrop,
Replacement: relabel.DefaultRelabelConfig.Replacement,
Action: relabel.LabelDrop,
},
{
Regex: MustNewRegexp("k"),
Regex: relabel.MustNewRegexp("k"),
Separator: ";",
Replacement: DefaultRelabelConfig.Replacement,
Action: RelabelLabelKeep,
Replacement: relabel.DefaultRelabelConfig.Replacement,
Action: relabel.LabelKeep,
},
},
MetricRelabelConfigs: []*RelabelConfig{
MetricRelabelConfigs: []*relabel.Config{
{
SourceLabels: model.LabelNames{"__name__"},
Regex: MustNewRegexp("expensive_metric.*"),
Regex: relabel.MustNewRegexp("expensive_metric.*"),
Separator: ";",
Replacement: DefaultRelabelConfig.Replacement,
Action: RelabelDrop,
Replacement: relabel.DefaultRelabelConfig.Replacement,
Action: relabel.Drop,
},
},
},
@ -296,14 +298,14 @@ var expectedConf = &Config{
},
},
RelabelConfigs: []*RelabelConfig{
RelabelConfigs: []*relabel.Config{
{
SourceLabels: model.LabelNames{"__meta_sd_consul_tags"},
Regex: MustNewRegexp("label:([^=]+)=([^,]+)"),
Regex: relabel.MustNewRegexp("label:([^=]+)=([^,]+)"),
Separator: ",",
TargetLabel: "${1}",
Replacement: "${2}",
Action: RelabelReplace,
Action: relabel.Replace,
},
},
},
@ -845,33 +847,6 @@ func TestEmptyGlobalBlock(t *testing.T) {
testutil.Equals(t, exp, *c)
}
func TestTargetLabelValidity(t *testing.T) {
tests := []struct {
str string
valid bool
}{
{"-label", false},
{"label", true},
{"label${1}", true},
{"${1}label", true},
{"${1}", true},
{"${1}label", true},
{"${", false},
{"$", false},
{"${}", false},
{"foo${", false},
{"$1", true},
{"asd$2asd", true},
{"-foo${1}bar-", false},
{"_${1}_", true},
{"foo${bar}foo", true},
}
for _, test := range tests {
testutil.Assert(t, relabelTarget.Match([]byte(test.str)) == test.valid,
"Expected %q to be %v", test.str, test.valid)
}
}
func kubernetesSDHostURL() config_util.URL {
tURL, _ := url.Parse("https://localhost:1234")
return config_util.URL{URL: tURL}

2
notifier/notifier.go
View File

@ -123,7 +123,7 @@ type Manager struct {
type Options struct {
QueueCapacity int
ExternalLabels model.LabelSet
RelabelConfigs []*config.RelabelConfig
RelabelConfigs []*relabel.Config
// Used for sending HTTP requests to the Alertmanager.
Do func(ctx context.Context, client *http.Client, req *http.Request) (*http.Response, error)

12
notifier/notifier_test.go
View File

@ -25,6 +25,8 @@ import (
"testing"
"time"
"github.com/prometheus/prometheus/pkg/relabel"
yaml "gopkg.in/yaml.v2"
config_util "github.com/prometheus/common/config"
@ -236,12 +238,12 @@ func TestExternalLabels(t *testing.T) {
h := NewManager(&Options{
QueueCapacity: 3 * maxBatchSize,
ExternalLabels: model.LabelSet{"a": "b"},
RelabelConfigs: []*config.RelabelConfig{
RelabelConfigs: []*relabel.Config{
{
SourceLabels: model.LabelNames{"alertname"},
TargetLabel: "a",
Action: "replace",
Regex: config.MustNewRegexp("externalrelabelthis"),
Regex: relabel.MustNewRegexp("externalrelabelthis"),
Replacement: "c",
},
},
@ -269,17 +271,17 @@ func TestExternalLabels(t *testing.T) {
func TestHandlerRelabel(t *testing.T) {
h := NewManager(&Options{
QueueCapacity: 3 * maxBatchSize,
RelabelConfigs: []*config.RelabelConfig{
RelabelConfigs: []*relabel.Config{
{
SourceLabels: model.LabelNames{"alertname"},
Action: "drop",
Regex: config.MustNewRegexp("drop"),
Regex: relabel.MustNewRegexp("drop"),
},
{
SourceLabels: model.LabelNames{"alertname"},
TargetLabel: "alertname",
Action: "replace",
Regex: config.MustNewRegexp("rename"),
Regex: relabel.MustNewRegexp("rename"),
Replacement: "renamed",
},
},

171
pkg/relabel/relabel.go
View File

@ -16,19 +16,170 @@ package relabel
import (
"crypto/md5"
"fmt"
"regexp"
"strings"
"github.com/prometheus/common/model"
"github.com/prometheus/prometheus/config"
"github.com/prometheus/prometheus/pkg/labels"
)
var (
relabelTarget = regexp.MustCompile(`^(?:(?:[a-zA-Z_]|\$(?:\{\w+\}|\w+))+\w*)+$`)
DefaultRelabelConfig = Config{
Action: Replace,
Separator: ";",
Regex: MustNewRegexp("(.*)"),
Replacement: "$1",
}
)
// Action is the action to be performed on relabeling.
type Action string
const (
// Replace performs a regex replacement.
Replace Action = "replace"
// Keep drops targets for which the input does not match the regex.
Keep Action = "keep"
// Drop drops targets for which the input does match the regex.
Drop Action = "drop"
// HashMod sets a label to the modulus of a hash of labels.
HashMod Action = "hashmod"
// LabelMap copies labels to other labelnames based on a regex.
LabelMap Action = "labelmap"
// LabelDrop drops any label matching the regex.
LabelDrop Action = "labeldrop"
// LabelKeep drops any label not matching the regex.
LabelKeep Action = "labelkeep"
)
// UnmarshalYAML implements the yaml.Unmarshaler interface.
func (a *Action) UnmarshalYAML(unmarshal func(interface{}) error) error {
var s string
if err := unmarshal(&s); err != nil {
return err
}
switch act := Action(strings.ToLower(s)); act {
case Replace, Keep, Drop, HashMod, LabelMap, LabelDrop, LabelKeep:
*a = act
return nil
}
return fmt.Errorf("unknown relabel action %q", s)
}
// Config is the configuration for relabeling of target label sets.
type Config struct {
// A list of labels from which values are taken and concatenated
// with the configured separator in order.
SourceLabels model.LabelNames `yaml:"source_labels,flow,omitempty"`
// Separator is the string between concatenated values from the source labels.
Separator string `yaml:"separator,omitempty"`
// Regex against which the concatenation is matched.
Regex Regexp `yaml:"regex,omitempty"`
// Modulus to take of the hash of concatenated values from the source labels.
Modulus uint64 `yaml:"modulus,omitempty"`
// TargetLabel is the label to which the resulting string is written in a replacement.
// Regexp interpolation is allowed for the replace action.
TargetLabel string `yaml:"target_label,omitempty"`
// Replacement is the regex replacement pattern to be used.
Replacement string `yaml:"replacement,omitempty"`
// Action is the action to be performed for the relabeling.
Action Action `yaml:"action,omitempty"`
}
// UnmarshalYAML implements the yaml.Unmarshaler interface.
func (c *Config) UnmarshalYAML(unmarshal func(interface{}) error) error {
*c = DefaultRelabelConfig
type plain Config
if err := unmarshal((*plain)(c)); err != nil {
return err
}
if c.Regex.Regexp == nil {
c.Regex = MustNewRegexp("")
}
if c.Modulus == 0 && c.Action == HashMod {
return fmt.Errorf("relabel configuration for hashmod requires non-zero modulus")
}
if (c.Action == Replace || c.Action == HashMod) && c.TargetLabel == "" {
return fmt.Errorf("relabel configuration for %s action requires 'target_label' value", c.Action)
}
if c.Action == Replace && !relabelTarget.MatchString(c.TargetLabel) {
return fmt.Errorf("%q is invalid 'target_label' for %s action", c.TargetLabel, c.Action)
}
if c.Action == LabelMap && !relabelTarget.MatchString(c.Replacement) {
return fmt.Errorf("%q is invalid 'replacement' for %s action", c.Replacement, c.Action)
}
if c.Action == HashMod && !model.LabelName(c.TargetLabel).IsValid() {
return fmt.Errorf("%q is invalid 'target_label' for %s action", c.TargetLabel, c.Action)
}
if c.Action == LabelDrop || c.Action == LabelKeep {
if c.SourceLabels != nil ||
c.TargetLabel != DefaultRelabelConfig.TargetLabel ||
c.Modulus != DefaultRelabelConfig.Modulus ||
c.Separator != DefaultRelabelConfig.Separator ||
c.Replacement != DefaultRelabelConfig.Replacement {
return fmt.Errorf("%s action requires only 'regex', and no other fields", c.Action)
}
}
return nil
}
// Regexp encapsulates a regexp.Regexp and makes it YAML marshalable.
type Regexp struct {
*regexp.Regexp
original string
}
// NewRegexp creates a new anchored Regexp and returns an error if the
// passed-in regular expression does not compile.
func NewRegexp(s string) (Regexp, error) {
regex, err := regexp.Compile("^(?:" + s + ")$")
return Regexp{
Regexp: regex,
original: s,
}, err
}
// MustNewRegexp works like NewRegexp, but panics if the regular expression does not compile.
func MustNewRegexp(s string) Regexp {
re, err := NewRegexp(s)
if err != nil {
panic(err)
}
return re
}
// UnmarshalYAML implements the yaml.Unmarshaler interface.
func (re *Regexp) UnmarshalYAML(unmarshal func(interface{}) error) error {
var s string
if err := unmarshal(&s); err != nil {
return err
}
r, err := NewRegexp(s)
if err != nil {
return err
}
*re = r
return nil
}
// MarshalYAML implements the yaml.Marshaler interface.
func (re Regexp) MarshalYAML() (interface{}, error) {
if re.original != "" {
return re.original, nil
}
return nil, nil
}
// Process returns a relabeled copy of the given label set. The relabel configurations
// are applied in order of input.
// If a label set is dropped, nil is returned.
// May return the input labelSet modified.
func Process(labels labels.Labels, cfgs ...*config.RelabelConfig) labels.Labels {
func Process(labels labels.Labels, cfgs ...*Config) labels.Labels {
for _, cfg := range cfgs {
labels = relabel(labels, cfg)
if labels == nil {
@ -38,7 +189,7 @@ func Process(labels labels.Labels, cfgs ...*config.RelabelConfig) labels.Labels
return labels
}
func relabel(lset labels.Labels, cfg *config.RelabelConfig) labels.Labels {
func relabel(lset labels.Labels, cfg *Config) labels.Labels {
values := make([]string, 0, len(cfg.SourceLabels))
for _, ln := range cfg.SourceLabels {
values = append(values, lset.Get(string(ln)))
@ -48,15 +199,15 @@ func relabel(lset labels.Labels, cfg *config.RelabelConfig) labels.Labels {
lb := labels.NewBuilder(lset)
switch cfg.Action {
case config.RelabelDrop:
case Drop:
if cfg.Regex.MatchString(val) {
return nil
}
case config.RelabelKeep:
case Keep:
if !cfg.Regex.MatchString(val) {
return nil
}
case config.RelabelReplace:
case Replace:
indexes := cfg.Regex.FindStringSubmatchIndex(val)
// If there is no match no replacement must take place.
if indexes == nil {
@ -73,23 +224,23 @@ func relabel(lset labels.Labels, cfg *config.RelabelConfig) labels.Labels {
break
}
lb.Set(string(target), string(res))
case config.RelabelHashMod:
case HashMod:
mod := sum64(md5.Sum([]byte(val))) % cfg.Modulus
lb.Set(cfg.TargetLabel, fmt.Sprintf("%d", mod))
case config.RelabelLabelMap:
case LabelMap:
for _, l := range lset {
if cfg.Regex.MatchString(l.Name) {
res := cfg.Regex.ReplaceAllString(l.Name, cfg.Replacement)
lb.Set(res, l.Value)
}
}
case config.RelabelLabelDrop:
case LabelDrop:
for _, l := range lset {
if cfg.Regex.MatchString(l.Name) {
lb.Del(l.Name)
}
}
case config.RelabelLabelKeep:
case LabelKeep:
for _, l := range lset {
if !cfg.Regex.MatchString(l.Name) {
lb.Del(l.Name)

166
pkg/relabel/relabel_test.go
View File

@ -18,7 +18,6 @@ import (
"github.com/prometheus/common/model"
"github.com/prometheus/prometheus/config"
"github.com/prometheus/prometheus/pkg/labels"
"github.com/prometheus/prometheus/util/testutil"
)
@ -26,7 +25,7 @@ import (
func TestRelabel(t *testing.T) {
tests := []struct {
input labels.Labels
relabel []*config.RelabelConfig
relabel []*Config
output labels.Labels
}{
{
@ -35,14 +34,14 @@ func TestRelabel(t *testing.T) {
"b": "bar",
"c": "baz",
}),
relabel: []*config.RelabelConfig{
relabel: []*Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("f(.*)"),
Regex: MustNewRegexp("f(.*)"),
TargetLabel: "d",
Separator: ";",
Replacement: "ch${1}-ch${1}",
Action: config.RelabelReplace,
Action: Replace,
},
},
output: labels.FromMap(map[string]string{
@ -58,22 +57,22 @@ func TestRelabel(t *testing.T) {
"b": "bar",
"c": "baz",
}),
relabel: []*config.RelabelConfig{
relabel: []*Config{
{
SourceLabels: model.LabelNames{"a", "b"},
Regex: config.MustNewRegexp("f(.*);(.*)r"),
Regex: MustNewRegexp("f(.*);(.*)r"),
TargetLabel: "a",
Separator: ";",
Replacement: "b${1}${2}m", // boobam
Action: config.RelabelReplace,
Action: Replace,
},
{
SourceLabels: model.LabelNames{"c", "a"},
Regex: config.MustNewRegexp("(b).*b(.*)ba(.*)"),
Regex: MustNewRegexp("(b).*b(.*)ba(.*)"),
TargetLabel: "d",
Separator: ";",
Replacement: "$1$2$2$3",
Action: config.RelabelReplace,
Action: Replace,
},
},
output: labels.FromMap(map[string]string{
@ -87,18 +86,18 @@ func TestRelabel(t *testing.T) {
input: labels.FromMap(map[string]string{
"a": "foo",
}),
relabel: []*config.RelabelConfig{
relabel: []*Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp(".*o.*"),
Action: config.RelabelDrop,
Regex: MustNewRegexp(".*o.*"),
Action: Drop,
}, {
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("f(.*)"),
Regex: MustNewRegexp("f(.*)"),
TargetLabel: "d",
Separator: ";",
Replacement: "ch$1-ch$1",
Action: config.RelabelReplace,
Action: Replace,
},
},
output: nil,
@ -108,11 +107,11 @@ func TestRelabel(t *testing.T) {
"a": "foo",
"b": "bar",
}),
relabel: []*config.RelabelConfig{
relabel: []*Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp(".*o.*"),
Action: config.RelabelDrop,
Regex: MustNewRegexp(".*o.*"),
Action: Drop,
},
},
output: nil,
@ -121,14 +120,14 @@ func TestRelabel(t *testing.T) {
input: labels.FromMap(map[string]string{
"a": "abc",
}),
relabel: []*config.RelabelConfig{
relabel: []*Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp(".*(b).*"),
Regex: MustNewRegexp(".*(b).*"),
TargetLabel: "d",
Separator: ";",
Replacement: "$1",
Action: config.RelabelReplace,
Action: Replace,
},
},
output: labels.FromMap(map[string]string{
@ -140,11 +139,11 @@ func TestRelabel(t *testing.T) {
input: labels.FromMap(map[string]string{
"a": "foo",
}),
relabel: []*config.RelabelConfig{
relabel: []*Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("no-match"),
Action: config.RelabelDrop,
Regex: MustNewRegexp("no-match"),
Action: Drop,
},
},
output: labels.FromMap(map[string]string{
@ -155,11 +154,11 @@ func TestRelabel(t *testing.T) {
input: labels.FromMap(map[string]string{
"a": "foo",
}),
relabel: []*config.RelabelConfig{
relabel: []*Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("f|o"),
Action: config.RelabelDrop,
Regex: MustNewRegexp("f|o"),
Action: Drop,
},
},
output: labels.FromMap(map[string]string{
@ -170,11 +169,11 @@ func TestRelabel(t *testing.T) {
input: labels.FromMap(map[string]string{
"a": "foo",
}),
relabel: []*config.RelabelConfig{
relabel: []*Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("no-match"),
Action: config.RelabelKeep,
Regex: MustNewRegexp("no-match"),
Action: Keep,
},
},
output: nil,
@ -183,11 +182,11 @@ func TestRelabel(t *testing.T) {
input: labels.FromMap(map[string]string{
"a": "foo",
}),
relabel: []*config.RelabelConfig{
relabel: []*Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("f.*"),
Action: config.RelabelKeep,
Regex: MustNewRegexp("f.*"),
Action: Keep,
},
},
output: labels.FromMap(map[string]string{
@ -199,13 +198,13 @@ func TestRelabel(t *testing.T) {
input: labels.FromMap(map[string]string{
"a": "boo",
}),
relabel: []*config.RelabelConfig{
relabel: []*Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("f"),
Regex: MustNewRegexp("f"),
TargetLabel: "b",
Replacement: "bar",
Action: config.RelabelReplace,
Action: Replace,
},
},
output: labels.FromMap(map[string]string{
@ -218,12 +217,12 @@ func TestRelabel(t *testing.T) {
"b": "bar",
"c": "baz",
}),
relabel: []*config.RelabelConfig{
relabel: []*Config{
{
SourceLabels: model.LabelNames{"c"},
TargetLabel: "d",
Separator: ";",
Action: config.RelabelHashMod,
Action: HashMod,
Modulus: 1000,
},
},
@ -240,11 +239,11 @@ func TestRelabel(t *testing.T) {
"b1": "bar",
"b2": "baz",
}),
relabel: []*config.RelabelConfig{
relabel: []*Config{
{
Regex: config.MustNewRegexp("(b.*)"),
Regex: MustNewRegexp("(b.*)"),
Replacement: "bar_${1}",
Action: config.RelabelLabelMap,
Action: LabelMap,
},
},
output: labels.FromMap(map[string]string{
@ -262,11 +261,11 @@ func TestRelabel(t *testing.T) {
"__meta_my_baz": "bbb",
"__meta_other": "ccc",
}),
relabel: []*config.RelabelConfig{
relabel: []*Config{
{
Regex: config.MustNewRegexp("__meta_(my.*)"),
Regex: MustNewRegexp("__meta_(my.*)"),
Replacement: "${1}",
Action: config.RelabelLabelMap,
Action: LabelMap,
},
},
output: labels.FromMap(map[string]string{
@ -282,11 +281,11 @@ func TestRelabel(t *testing.T) {
input: labels.FromMap(map[string]string{
"a": "some-name-value",
}),
relabel: []*config.RelabelConfig{
relabel: []*Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("some-([^-]+)-([^,]+)"),
Action: config.RelabelReplace,
Regex: MustNewRegexp("some-([^-]+)-([^,]+)"),
Action: Replace,
Replacement: "${2}",
TargetLabel: "${1}",
},
@ -300,11 +299,11 @@ func TestRelabel(t *testing.T) {
input: labels.FromMap(map[string]string{
"a": "some-name-value",
}),
relabel: []*config.RelabelConfig{
relabel: []*Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("some-([^-]+)-([^,]+)"),
Action: config.RelabelReplace,
Regex: MustNewRegexp("some-([^-]+)-([^,]+)"),
Action: Replace,
Replacement: "${3}",
TargetLabel: "${1}",
},
@ -317,25 +316,25 @@ func TestRelabel(t *testing.T) {
input: labels.FromMap(map[string]string{
"a": "some-name-value",
}),
relabel: []*config.RelabelConfig{
relabel: []*Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("some-([^-]+)-([^,]+)"),
Action: config.RelabelReplace,
Regex: MustNewRegexp("some-([^-]+)-([^,]+)"),
Action: Replace,
Replacement: "${1}",
TargetLabel: "${3}",
},
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("some-([^-]+)-([^,]+)"),
Action: config.RelabelReplace,
Regex: MustNewRegexp("some-([^-]+)-([^,]+)"),
Action: Replace,
Replacement: "${1}",
TargetLabel: "0${3}",
},
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("some-([^-]+)-([^,]+)"),
Action: config.RelabelReplace,
Regex: MustNewRegexp("some-([^-]+)-([^,]+)"),
Action: Replace,
Replacement: "${1}",
TargetLabel: "-${3}",
},
@ -348,25 +347,25 @@ func TestRelabel(t *testing.T) {
input: labels.FromMap(map[string]string{
"__meta_sd_tags": "path:/secret,job:some-job,label:foo=bar",
}),
relabel: []*config.RelabelConfig{
relabel: []*Config{
{
SourceLabels: model.LabelNames{"__meta_sd_tags"},
Regex: config.MustNewRegexp("(?:.+,|^)path:(/[^,]+).*"),
Action: config.RelabelReplace,
Regex: MustNewRegexp("(?:.+,|^)path:(/[^,]+).*"),
Action: Replace,
Replacement: "${1}",
TargetLabel: "__metrics_path__",
},
{
SourceLabels: model.LabelNames{"__meta_sd_tags"},
Regex: config.MustNewRegexp("(?:.+,|^)job:([^,]+).*"),
Action: config.RelabelReplace,
Regex: MustNewRegexp("(?:.+,|^)job:([^,]+).*"),
Action: Replace,
Replacement: "${1}",
TargetLabel: "job",
},
{
SourceLabels: model.LabelNames{"__meta_sd_tags"},
Regex: config.MustNewRegexp("(?:.+,|^)label:([^=]+)=([^,]+).*"),
Action: config.RelabelReplace,
Regex: MustNewRegexp("(?:.+,|^)label:([^=]+)=([^,]+).*"),
Action: Replace,
Replacement: "${2}",
TargetLabel: "${1}",
},
@ -384,10 +383,10 @@ func TestRelabel(t *testing.T) {
"b1": "bar",
"b2": "baz",
}),
relabel: []*config.RelabelConfig{
relabel: []*Config{
{
Regex: config.MustNewRegexp("(b.*)"),
Action: config.RelabelLabelKeep,
Regex: MustNewRegexp("(b.*)"),
Action: LabelKeep,
},
},
output: labels.FromMap(map[string]string{
@ -401,10 +400,10 @@ func TestRelabel(t *testing.T) {
"b1": "bar",
"b2": "baz",
}),
relabel: []*config.RelabelConfig{
relabel: []*Config{
{
Regex: config.MustNewRegexp("(b.*)"),
Action: config.RelabelLabelDrop,
Regex: MustNewRegexp("(b.*)"),
Action: LabelDrop,
},
},
output: labels.FromMap(map[string]string{
@ -418,3 +417,30 @@ func TestRelabel(t *testing.T) {
testutil.Equals(t, test.output, res)
}
}
func TestTargetLabelValidity(t *testing.T) {
tests := []struct {
str string
valid bool
}{
{"-label", false},
{"label", true},
{"label${1}", true},
{"${1}label", true},
{"${1}", true},
{"${1}label", true},
{"${", false},
{"$", false},
{"${}", false},
{"foo${", false},
{"$1", true},
{"asd$2asd", true},
{"-foo${1}bar-", false},
{"_${1}_", true},
{"foo${bar}foo", true},
}
for _, test := range tests {
testutil.Assert(t, relabelTarget.Match([]byte(test.str)) == test.valid,
"Expected %q to be %v", test.str, test.valid)
}
}

22
relabel/relabel.go
View File

@ -20,14 +20,16 @@ import (
"github.com/prometheus/common/model"
"github.com/prometheus/prometheus/config"
pkgrelabel "github.com/prometheus/prometheus/pkg/relabel"
)
// Process returns a relabeled copy of the given label set. The relabel configurations
// are applied in order of input.
// If a label set is dropped, nil is returned.
// May return the input labelSet modified.
func Process(labels model.LabelSet, cfgs ...*config.RelabelConfig) model.LabelSet {
// TODO(https://github.com/prometheus/prometheus/issues/3647): Get rid of this package in favor of pkg/relabel
// once usage of `model.LabelSet` is removed.
func Process(labels model.LabelSet, cfgs ...*pkgrelabel.Config) model.LabelSet {
for _, cfg := range cfgs {
labels = relabel(labels, cfg)
if labels == nil {
@ -37,7 +39,7 @@ func Process(labels model.LabelSet, cfgs ...*config.RelabelConfig) model.LabelSe
return labels
}
func relabel(labels model.LabelSet, cfg *config.RelabelConfig) model.LabelSet {
func relabel(labels model.LabelSet, cfg *pkgrelabel.Config) model.LabelSet {
values := make([]string, 0, len(cfg.SourceLabels))
for _, ln := range cfg.SourceLabels {
values = append(values, string(labels[ln]))
@ -45,15 +47,15 @@ func relabel(labels model.LabelSet, cfg *config.RelabelConfig) model.LabelSet {
val := strings.Join(values, cfg.Separator)
switch cfg.Action {
case config.RelabelDrop:
case pkgrelabel.Drop:
if cfg.Regex.MatchString(val) {
return nil
}
case config.RelabelKeep:
case pkgrelabel.Keep:
if !cfg.Regex.MatchString(val) {
return nil
}
case config.RelabelReplace:
case pkgrelabel.Replace:
indexes := cfg.Regex.FindStringSubmatchIndex(val)
// If there is no match no replacement must take place.
if indexes == nil {
@ -70,10 +72,10 @@ func relabel(labels model.LabelSet, cfg *config.RelabelConfig) model.LabelSet {
break
}
labels[target] = model.LabelValue(res)
case config.RelabelHashMod:
case pkgrelabel.HashMod:
mod := sum64(md5.Sum([]byte(val))) % cfg.Modulus
labels[model.LabelName(cfg.TargetLabel)] = model.LabelValue(fmt.Sprintf("%d", mod))
case config.RelabelLabelMap:
case pkgrelabel.LabelMap:
out := make(model.LabelSet, len(labels))
// Take a copy to avoid infinite loops.
for ln, lv := range labels {
@ -86,13 +88,13 @@ func relabel(labels model.LabelSet, cfg *config.RelabelConfig) model.LabelSet {
}
}
labels = out
case config.RelabelLabelDrop:
case pkgrelabel.LabelDrop:
for ln := range labels {
if cfg.Regex.MatchString(string(ln)) {
delete(labels, ln)
}
}
case config.RelabelLabelKeep:
case pkgrelabel.LabelKeep:
for ln := range labels {
if !cfg.Regex.MatchString(string(ln)) {
delete(labels, ln)

140
relabel/relabel_test.go
View File

@ -18,14 +18,14 @@ import (
"github.com/prometheus/common/model"
"github.com/prometheus/prometheus/config"
pkgrelabel "github.com/prometheus/prometheus/pkg/relabel"
"github.com/prometheus/prometheus/util/testutil"
)
func TestRelabel(t *testing.T) {
tests := []struct {
input model.LabelSet
relabel []*config.RelabelConfig
relabel []*pkgrelabel.Config
output model.LabelSet
}{
{
@ -34,14 +34,14 @@ func TestRelabel(t *testing.T) {
"b": "bar",
"c": "baz",
},
relabel: []*config.RelabelConfig{
relabel: []*pkgrelabel.Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("f(.*)"),
Regex: pkgrelabel.MustNewRegexp("f(.*)"),
TargetLabel: "d",
Separator: ";",
Replacement: "ch${1}-ch${1}",
Action: config.RelabelReplace,
Action: pkgrelabel.Replace,
},
},
output: model.LabelSet{
@ -57,22 +57,22 @@ func TestRelabel(t *testing.T) {
"b": "bar",
"c": "baz",
},
relabel: []*config.RelabelConfig{
relabel: []*pkgrelabel.Config{
{
SourceLabels: model.LabelNames{"a", "b"},
Regex: config.MustNewRegexp("f(.*);(.*)r"),
Regex: pkgrelabel.MustNewRegexp("f(.*);(.*)r"),
TargetLabel: "a",
Separator: ";",
Replacement: "b${1}${2}m", // boobam
Action: config.RelabelReplace,
Action: pkgrelabel.Replace,
},
{
SourceLabels: model.LabelNames{"c", "a"},
Regex: config.MustNewRegexp("(b).*b(.*)ba(.*)"),
Regex: pkgrelabel.MustNewRegexp("(b).*b(.*)ba(.*)"),
TargetLabel: "d",
Separator: ";",
Replacement: "$1$2$2$3",
Action: config.RelabelReplace,
Action: pkgrelabel.Replace,
},
},
output: model.LabelSet{
@ -86,18 +86,18 @@ func TestRelabel(t *testing.T) {
input: model.LabelSet{
"a": "foo",
},
relabel: []*config.RelabelConfig{
relabel: []*pkgrelabel.Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp(".*o.*"),
Action: config.RelabelDrop,
Regex: pkgrelabel.MustNewRegexp(".*o.*"),
Action: pkgrelabel.Drop,
}, {
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("f(.*)"),
Regex: pkgrelabel.MustNewRegexp("f(.*)"),
TargetLabel: "d",
Separator: ";",
Replacement: "ch$1-ch$1",
Action: config.RelabelReplace,
Action: pkgrelabel.Replace,
},
},
output: nil,
@ -107,11 +107,11 @@ func TestRelabel(t *testing.T) {
"a": "foo",
"b": "bar",
},
relabel: []*config.RelabelConfig{
relabel: []*pkgrelabel.Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp(".*o.*"),
Action: config.RelabelDrop,
Regex: pkgrelabel.MustNewRegexp(".*o.*"),
Action: pkgrelabel.Drop,
},
},
output: nil,
@ -120,14 +120,14 @@ func TestRelabel(t *testing.T) {
input: model.LabelSet{
"a": "abc",
},
relabel: []*config.RelabelConfig{
relabel: []*pkgrelabel.Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp(".*(b).*"),
Regex: pkgrelabel.MustNewRegexp(".*(b).*"),
TargetLabel: "d",
Separator: ";",
Replacement: "$1",
Action: config.RelabelReplace,
Action: pkgrelabel.Replace,
},
},
output: model.LabelSet{
@ -139,11 +139,11 @@ func TestRelabel(t *testing.T) {
input: model.LabelSet{
"a": "foo",
},
relabel: []*config.RelabelConfig{
relabel: []*pkgrelabel.Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("no-match"),
Action: config.RelabelDrop,
Regex: pkgrelabel.MustNewRegexp("no-match"),
Action: pkgrelabel.Drop,
},
},
output: model.LabelSet{
@ -154,11 +154,11 @@ func TestRelabel(t *testing.T) {
input: model.LabelSet{
"a": "foo",
},
relabel: []*config.RelabelConfig{
relabel: []*pkgrelabel.Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("f|o"),
Action: config.RelabelDrop,
Regex: pkgrelabel.MustNewRegexp("f|o"),
Action: pkgrelabel.Drop,
},
},
output: model.LabelSet{
@ -169,11 +169,11 @@ func TestRelabel(t *testing.T) {
input: model.LabelSet{
"a": "foo",
},
relabel: []*config.RelabelConfig{
relabel: []*pkgrelabel.Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("no-match"),
Action: config.RelabelKeep,
Regex: pkgrelabel.MustNewRegexp("no-match"),
Action: pkgrelabel.Keep,
},
},
output: nil,
@ -182,11 +182,11 @@ func TestRelabel(t *testing.T) {
input: model.LabelSet{
"a": "foo",
},
relabel: []*config.RelabelConfig{
relabel: []*pkgrelabel.Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("f.*"),
Action: config.RelabelKeep,
Regex: pkgrelabel.MustNewRegexp("f.*"),
Action: pkgrelabel.Keep,
},
},
output: model.LabelSet{
@ -198,13 +198,13 @@ func TestRelabel(t *testing.T) {
input: model.LabelSet{
"a": "boo",
},
relabel: []*config.RelabelConfig{
relabel: []*pkgrelabel.Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("f"),
Regex: pkgrelabel.MustNewRegexp("f"),
TargetLabel: "b",
Replacement: "bar",
Action: config.RelabelReplace,
Action: pkgrelabel.Replace,
},
},
output: model.LabelSet{
@ -217,12 +217,12 @@ func TestRelabel(t *testing.T) {
"b": "bar",
"c": "baz",
},
relabel: []*config.RelabelConfig{
relabel: []*pkgrelabel.Config{
{
SourceLabels: model.LabelNames{"c"},
TargetLabel: "d",
Separator: ";",
Action: config.RelabelHashMod,
Action: pkgrelabel.HashMod,
Modulus: 1000,
},
},
@ -239,11 +239,11 @@ func TestRelabel(t *testing.T) {
"b1": "bar",
"b2": "baz",
},
relabel: []*config.RelabelConfig{
relabel: []*pkgrelabel.Config{
{
Regex: config.MustNewRegexp("(b.*)"),
Regex: pkgrelabel.MustNewRegexp("(b.*)"),
Replacement: "bar_${1}",
Action: config.RelabelLabelMap,
Action: pkgrelabel.LabelMap,
},
},
output: model.LabelSet{
@ -261,11 +261,11 @@ func TestRelabel(t *testing.T) {
"__meta_my_baz": "bbb",
"__meta_other": "ccc",
},
relabel: []*config.RelabelConfig{
relabel: []*pkgrelabel.Config{
{
Regex: config.MustNewRegexp("__meta_(my.*)"),
Regex: pkgrelabel.MustNewRegexp("__meta_(my.*)"),
Replacement: "${1}",
Action: config.RelabelLabelMap,
Action: pkgrelabel.LabelMap,
},
},
output: model.LabelSet{
@ -281,11 +281,11 @@ func TestRelabel(t *testing.T) {
input: model.LabelSet{
"a": "some-name-value",
},
relabel: []*config.RelabelConfig{
relabel: []*pkgrelabel.Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("some-([^-]+)-([^,]+)"),
Action: config.RelabelReplace,
Regex: pkgrelabel.MustNewRegexp("some-([^-]+)-([^,]+)"),
Action: pkgrelabel.Replace,
Replacement: "${2}",
TargetLabel: "${1}",
},
@ -299,11 +299,11 @@ func TestRelabel(t *testing.T) {
input: model.LabelSet{
"a": "some-name-value",
},
relabel: []*config.RelabelConfig{
relabel: []*pkgrelabel.Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("some-([^-]+)-([^,]+)"),
Action: config.RelabelReplace,
Regex: pkgrelabel.MustNewRegexp("some-([^-]+)-([^,]+)"),
Action: pkgrelabel.Replace,
Replacement: "${3}",
TargetLabel: "${1}",
},
@ -316,25 +316,25 @@ func TestRelabel(t *testing.T) {
input: model.LabelSet{
"a": "some-name-value",
},
relabel: []*config.RelabelConfig{
relabel: []*pkgrelabel.Config{
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("some-([^-]+)-([^,]+)"),
Action: config.RelabelReplace,
Regex: pkgrelabel.MustNewRegexp("some-([^-]+)-([^,]+)"),
Action: pkgrelabel.Replace,
Replacement: "${1}",
TargetLabel: "${3}",
},
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("some-([^-]+)-([^,]+)"),
Action: config.RelabelReplace,
Regex: pkgrelabel.MustNewRegexp("some-([^-]+)-([^,]+)"),
Action: pkgrelabel.Replace,
Replacement: "${1}",
TargetLabel: "0${3}",
},
{
SourceLabels: model.LabelNames{"a"},
Regex: config.MustNewRegexp("some-([^-]+)-([^,]+)"),
Action: config.RelabelReplace,
Regex: pkgrelabel.MustNewRegexp("some-([^-]+)-([^,]+)"),
Action: pkgrelabel.Replace,
Replacement: "${1}",
TargetLabel: "-${3}",
},
@ -347,25 +347,25 @@ func TestRelabel(t *testing.T) {
input: model.LabelSet{
"__meta_sd_tags": "path:/secret,job:some-job,label:foo=bar",
},
relabel: []*config.RelabelConfig{
relabel: []*pkgrelabel.Config{
{
SourceLabels: model.LabelNames{"__meta_sd_tags"},
Regex: config.MustNewRegexp("(?:.+,|^)path:(/[^,]+).*"),
Action: config.RelabelReplace,
Regex: pkgrelabel.MustNewRegexp("(?:.+,|^)path:(/[^,]+).*"),
Action: pkgrelabel.Replace,
Replacement: "${1}",
TargetLabel: "__metrics_path__",
},
{
SourceLabels: model.LabelNames{"__meta_sd_tags"},
Regex: config.MustNewRegexp("(?:.+,|^)job:([^,]+).*"),
Action: config.RelabelReplace,
Regex: pkgrelabel.MustNewRegexp("(?:.+,|^)job:([^,]+).*"),
Action: pkgrelabel.Replace,
Replacement: "${1}",
TargetLabel: "job",
},
{
SourceLabels: model.LabelNames{"__meta_sd_tags"},
Regex: config.MustNewRegexp("(?:.+,|^)label:([^=]+)=([^,]+).*"),
Action: config.RelabelReplace,
Regex: pkgrelabel.MustNewRegexp("(?:.+,|^)label:([^=]+)=([^,]+).*"),
Action: pkgrelabel.Replace,
Replacement: "${2}",
TargetLabel: "${1}",
},
@ -383,10 +383,10 @@ func TestRelabel(t *testing.T) {
"b1": "bar",
"b2": "baz",
},
relabel: []*config.RelabelConfig{
relabel: []*pkgrelabel.Config{
{
Regex: config.MustNewRegexp("(b.*)"),
Action: config.RelabelLabelKeep,
Regex: pkgrelabel.MustNewRegexp("(b.*)"),
Action: pkgrelabel.LabelKeep,
},
},
output: model.LabelSet{
@ -400,10 +400,10 @@ func TestRelabel(t *testing.T) {
"b1": "bar",
"b2": "baz",
},
relabel: []*config.RelabelConfig{
relabel: []*pkgrelabel.Config{
{
Regex: config.MustNewRegexp("(b.*)"),
Action: config.RelabelLabelDrop,
Regex: pkgrelabel.MustNewRegexp("(b.*)"),
Action: pkgrelabel.LabelDrop,
},
},
output: model.LabelSet{

24
scrape/manager_test.go
View File

@ -19,6 +19,8 @@ import (
"testing"
"time"
"github.com/prometheus/prometheus/pkg/relabel"
"github.com/prometheus/common/model"
"github.com/prometheus/prometheus/config"
"github.com/prometheus/prometheus/discovery/targetgroup"
@ -28,14 +30,6 @@ import (
yaml "gopkg.in/yaml.v2"
)
func mustNewRegexp(s string) config.Regexp {
re, err := config.NewRegexp(s)
if err != nil {
panic(err)
}
return re
}
func TestPopulateLabels(t *testing.T) {
cases := []struct {
in labels.Labels
@ -144,10 +138,10 @@ func TestPopulateLabels(t *testing.T) {
Scheme: "https",
MetricsPath: "/metrics",
JobName: "job",
RelabelConfigs: []*config.RelabelConfig{
RelabelConfigs: []*relabel.Config{
{
Action: config.RelabelReplace,
Regex: mustNewRegexp("(.*)"),
Action: relabel.Replace,
Regex: relabel.MustNewRegexp("(.*)"),
SourceLabels: model.LabelNames{"custom"},
Replacement: "${1}",
TargetLabel: string(model.AddressLabel),
@ -176,10 +170,10 @@ func TestPopulateLabels(t *testing.T) {
Scheme: "https",
MetricsPath: "/metrics",
JobName: "job",
RelabelConfigs: []*config.RelabelConfig{
RelabelConfigs: []*relabel.Config{
{
Action: config.RelabelReplace,
Regex: mustNewRegexp("(.*)"),
Action: relabel.Replace,
Regex: relabel.MustNewRegexp("(.*)"),
SourceLabels: model.LabelNames{"custom"},
Replacement: "${1}",
TargetLabel: string(model.AddressLabel),
@ -249,7 +243,7 @@ scrape_configs:
scrapeManager.ApplyConfig(cfg)
// As reload never happens, new loop should never be called.
newLoop := func(_ *Target, s scraper, _ int, _ bool, _ []*config.RelabelConfig) loop {
newLoop := func(_ *Target, s scraper, _ int, _ bool, _ []*relabel.Config) loop {
t.Fatal("reload happened")
return nil
}

6
scrape/scrape.go
View File

@ -129,7 +129,7 @@ type scrapePool struct {
cancel context.CancelFunc
// Constructor for new scrape loops. This is settable for testing convenience.
newLoop func(*Target, scraper, int, bool, []*config.RelabelConfig) loop
newLoop func(*Target, scraper, int, bool, []*relabel.Config) loop
}
const maxAheadTime = 10 * time.Minute
@ -159,7 +159,7 @@ func newScrapePool(cfg *config.ScrapeConfig, app Appendable, logger log.Logger)
loops: map[uint64]loop{},
logger: logger,
}
sp.newLoop = func(t *Target, s scraper, limit int, honor bool, mrc []*config.RelabelConfig) loop {
sp.newLoop = func(t *Target, s scraper, limit int, honor bool, mrc []*relabel.Config) loop {
// Update the targets retrieval function for metadata to a new scrape cache.
cache := newScrapeCache()
t.setMetadataStore(cache)
@ -366,7 +366,7 @@ func (sp *scrapePool) sync(targets []*Target) {
wg.Wait()
}
func mutateSampleLabels(lset labels.Labels, target *Target, honor bool, rc []*config.RelabelConfig) labels.Labels {
func mutateSampleLabels(lset labels.Labels, target *Target, honor bool, rc []*relabel.Config) labels.Labels {
lb := labels.NewBuilder(lset)
if honor {

10
scrape/scrape_test.go
View File

@ -29,6 +29,8 @@ import (
"testing"
"time"
"github.com/prometheus/prometheus/pkg/relabel"
"github.com/prometheus/common/model"
"github.com/stretchr/testify/require"
@ -68,10 +70,10 @@ func TestDroppedTargetsList(t *testing.T) {
cfg = &config.ScrapeConfig{
JobName: "dropMe",
ScrapeInterval: model.Duration(1),
RelabelConfigs: []*config.RelabelConfig{
RelabelConfigs: []*relabel.Config{
{
Action: config.RelabelDrop,
Regex: mustNewRegexp("dropMe"),
Action: relabel.Drop,
Regex: relabel.MustNewRegexp("dropMe"),
SourceLabels: model.LabelNames{"job"},
},
},
@ -219,7 +221,7 @@ func TestScrapePoolReload(t *testing.T) {
}
// On starting to run, new loops created on reload check whether their preceding
// equivalents have been stopped.
newLoop := func(_ *Target, s scraper, _ int, _ bool, _ []*config.RelabelConfig) loop {
newLoop := func(_ *Target, s scraper, _ int, _ bool, _ []*relabel.Config) loop {
l := &testLoop{}
l.startFunc = func(interval, timeout time.Duration, errc chan<- error) {
if interval != 3*time.Second {

5
storage/remote/queue_manager.go
View File

@ -27,6 +27,7 @@ import (
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/common/model"
"github.com/prometheus/prometheus/config"
pkgrelabel "github.com/prometheus/prometheus/pkg/relabel"
"github.com/prometheus/prometheus/prompb"
"github.com/prometheus/prometheus/relabel"
)
@ -144,7 +145,7 @@ type QueueManager struct {
flushDeadline time.Duration
cfg config.QueueConfig
externalLabels model.LabelSet
relabelConfigs []*config.RelabelConfig
relabelConfigs []*pkgrelabel.Config
client StorageClient
queueName string
logLimiter *rate.Limiter
@ -161,7 +162,7 @@ type QueueManager struct {
}
// NewQueueManager builds a new QueueManager.
func NewQueueManager(logger log.Logger, cfg config.QueueConfig, externalLabels model.LabelSet, relabelConfigs []*config.RelabelConfig, client StorageClient, flushDeadline time.Duration) *QueueManager {
func NewQueueManager(logger log.Logger, cfg config.QueueConfig, externalLabels model.LabelSet, relabelConfigs []*pkgrelabel.Config, client StorageClient, flushDeadline time.Duration) *QueueManager {
if logger == nil {
logger = log.NewNopLogger()
} else {