prometheus/config/config.go

106 lines
2.2 KiB
Go

package config
import (
"errors"
"fmt"
"github.com/prometheus/prometheus/model"
"time"
)
type Config struct {
Global *GlobalConfig
Jobs []JobConfig
}
type GlobalConfig struct {
ScrapeInterval time.Duration
EvaluationInterval time.Duration
Labels model.LabelSet
RuleFiles []string
}
type JobConfig struct {
Name string
ScrapeInterval time.Duration
Targets []Targets
}
type Targets struct {
Endpoints []string
Labels model.LabelSet
}
func New() *Config {
return &Config{
Global: &GlobalConfig{Labels: model.LabelSet{}},
}
}
func (config *Config) AddJob(options map[string]string, targets []Targets) error {
name, ok := options["name"]
if !ok {
return errors.New("Missing job name")
}
if len(targets) == 0 {
return errors.New(fmt.Sprintf("No targets configured for job '%v'", name))
}
job := &JobConfig{
Targets: tmpJobTargets,
}
for option, value := range options {
if err := job.SetOption(option, value); err != nil {
return err
}
}
config.Jobs = append(config.Jobs, *job)
return nil
}
func (config *GlobalConfig) SetOption(option string, value string) error {
switch option {
case "scrape_interval":
config.ScrapeInterval = stringToDuration(value)
return nil
case "evaluation_interval":
config.EvaluationInterval = stringToDuration(value)
return nil
default:
return errors.New(fmt.Sprintf("Unrecognized global configuration option '%v'", option))
}
return nil
}
func (config *GlobalConfig) SetLabels(labels model.LabelSet) {
for k, v := range labels {
config.Labels[k] = v
}
}
func (config *GlobalConfig) AddRuleFiles(ruleFiles []string) {
for _, ruleFile := range ruleFiles {
config.RuleFiles = append(config.RuleFiles, ruleFile)
}
}
func (job *JobConfig) SetOption(option string, value string) error {
switch option {
case "name":
job.Name = value
return nil
case "scrape_interval":
job.ScrapeInterval = stringToDuration(value)
return nil
default:
return errors.New(fmt.Sprintf("Unrecognized job configuration option '%v'", option))
}
return nil
}
func (job *JobConfig) AddTargets(endpoints []string, labels model.LabelSet) {
targets := Targets{
Endpoints: endpoints,
Labels: labels,
}
job.Targets = append(job.Targets, targets)
}