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// SPDX-License-Identifier: GPL-3.0-or-later
package wireguard
import (
_ "embed"
"errors"
"time"
"github.com/netdata/netdata/go/go.d.plugin/agent/module"
"golang.zx2c4.com/wireguard/wgctrl"
"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
)
//go:embed "config_schema.json"
var configSchema string
func init() {
module.Register("wireguard", module.Creator{
JobConfigSchema: configSchema,
Create: func() module.Module { return New() },
})
}
func New() *WireGuard {
return &WireGuard{
newWGClient: func() (wgClient, error) { return wgctrl.New() },
charts: &module.Charts{},
devices: make(map[string]bool),
peers: make(map[string]bool),
cleanupEvery: time.Minute,
}
}
type Config struct {
UpdateEvery int `yaml:"update_every" json:"update_every"`
}
type (
WireGuard struct {
module.Base
Config `yaml:",inline" json:""`
charts *module.Charts
client wgClient
newWGClient func() (wgClient, error)
cleanupLastTime time.Time
cleanupEvery time.Duration
devices map[string]bool
peers map[string]bool
}
wgClient interface {
Devices() ([]*wgtypes.Device, error)
Close() error
}
)
func (w *WireGuard) Configuration() any {
return w.Config
}
func (w *WireGuard) Init() error {
return nil
}
func (w *WireGuard) Check() error {
mx, err := w.collect()
if err != nil {
w.Error(err)
return err
}
if len(mx) == 0 {
return errors.New("no metrics collected")
}
return nil
}
func (w *WireGuard) Charts() *module.Charts {
return w.charts
}
func (w *WireGuard) Collect() map[string]int64 {
mx, err := w.collect()
if err != nil {
w.Error(err)
}
if len(mx) == 0 {
return nil
}
return mx
}
func (w *WireGuard) Cleanup() {
if w.client == nil {
return
}
if err := w.client.Close(); err != nil {
w.Warningf("cleanup: error on closing connection: %v", err)
}
w.client = nil
}
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