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// SPDX-License-Identifier: GPL-3.0-or-later
package haproxy
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("haproxy", module.Creator{
JobConfigSchema: configSchema,
Create: func() module.Module { return New() },
})
}
func New() *Haproxy {
return &Haproxy{
Config: Config{
HTTP: web.HTTP{
Request: web.Request{
URL: "http://127.0.0.1:8404/metrics",
},
Client: web.Client{
Timeout: web.Duration(time.Second),
},
},
},
charts: charts.Copy(),
proxies: make(map[string]bool),
validateMetrics: true,
}
}
type Config struct {
web.HTTP `yaml:",inline" json:""`
UpdateEvery int `yaml:"update_every" json:"update_every"`
}
type Haproxy struct {
module.Base
Config `yaml:",inline" json:""`
charts *module.Charts
prom prometheus.Prometheus
validateMetrics bool
proxies map[string]bool
}
func (h *Haproxy) Configuration() any {
return h.Config
}
func (h *Haproxy) Init() error {
if err := h.validateConfig(); err != nil {
h.Errorf("config validation: %v", err)
return err
}
prom, err := h.initPrometheusClient()
if err != nil {
h.Errorf("prometheus client initialization: %v", err)
return err
}
h.prom = prom
return nil
}
func (h *Haproxy) Check() error {
mx, err := h.collect()
if err != nil {
h.Error(err)
return err
}
if len(mx) == 0 {
return errors.New("no metrics collected")
}
return nil
}
func (h *Haproxy) Charts() *module.Charts {
return h.charts
}
func (h *Haproxy) Collect() map[string]int64 {
mx, err := h.collect()
if err != nil {
h.Error(err)
return nil
}
if len(mx) == 0 {
return nil
}
return mx
}
func (h *Haproxy) Cleanup() {
if h.prom != nil && h.prom.HTTPClient() != nil {
h.prom.HTTPClient().CloseIdleConnections()
}
}
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