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|
// SPDX-License-Identifier: GPL-3.0-or-later
package traefik
import (
_ "embed"
"errors"
"time"
"github.com/netdata/netdata/go/go.d.plugin/agent/module"
"github.com/netdata/netdata/go/go.d.plugin/pkg/prometheus"
"github.com/netdata/netdata/go/go.d.plugin/pkg/web"
)
//go:embed "config_schema.json"
var configSchema string
func init() {
module.Register("traefik", module.Creator{
JobConfigSchema: configSchema,
Create: func() module.Module { return New() },
})
}
func New() *Traefik {
return &Traefik{
Config: Config{
HTTP: web.HTTP{
Request: web.Request{
URL: "http://127.0.0.1:8082/metrics",
},
Client: web.Client{
Timeout: web.Duration(time.Second),
},
},
},
charts: &module.Charts{},
checkMetrics: true,
cache: &cache{
entrypoints: make(map[string]*cacheEntrypoint),
},
}
}
type Config struct {
web.HTTP `yaml:",inline" json:""`
UpdateEvery int `yaml:"update_every" json:"update_every"`
}
type (
Traefik struct {
module.Base
Config `yaml:",inline" json:""`
charts *module.Charts
prom prometheus.Prometheus
checkMetrics bool
cache *cache
}
cache struct {
entrypoints map[string]*cacheEntrypoint
}
cacheEntrypoint struct {
name, proto string
requests *module.Chart
reqDur *module.Chart
reqDurData map[string]cacheEntrypointReqDur
openConn *module.Chart
openConnMethods map[string]bool
}
cacheEntrypointReqDur struct {
prev, cur struct{ reqs, secs float64 }
seen bool
}
)
func (t *Traefik) Configuration() any {
return t.Config
}
func (t *Traefik) Init() error {
if err := t.validateConfig(); err != nil {
t.Errorf("config validation: %v", err)
return err
}
prom, err := t.initPrometheusClient()
if err != nil {
t.Errorf("prometheus client initialization: %v", err)
return err
}
t.prom = prom
return nil
}
func (t *Traefik) Check() error {
mx, err := t.collect()
if err != nil {
t.Error(err)
return err
}
if len(mx) == 0 {
return errors.New("no metrics collected")
}
return nil
}
func (t *Traefik) Charts() *module.Charts {
return t.charts
}
func (t *Traefik) Collect() map[string]int64 {
mx, err := t.collect()
if err != nil {
t.Error(err)
return nil
}
if len(mx) == 0 {
return nil
}
return mx
}
func (Traefik) Cleanup() {}
|
