diff options
Diffstat (limited to '')
-rw-r--r-- | src/go/collectors/go.d.plugin/modules/dnsmasq/dnsmasq.go | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/src/go/collectors/go.d.plugin/modules/dnsmasq/dnsmasq.go b/src/go/collectors/go.d.plugin/modules/dnsmasq/dnsmasq.go new file mode 100644 index 000000000..65415fbab --- /dev/null +++ b/src/go/collectors/go.d.plugin/modules/dnsmasq/dnsmasq.go @@ -0,0 +1,122 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +package dnsmasq + +import ( + _ "embed" + "errors" + "time" + + "github.com/netdata/netdata/go/go.d.plugin/agent/module" + "github.com/netdata/netdata/go/go.d.plugin/pkg/web" + + "github.com/miekg/dns" +) + +//go:embed "config_schema.json" +var configSchema string + +func init() { + module.Register("dnsmasq", module.Creator{ + JobConfigSchema: configSchema, + Create: func() module.Module { return New() }, + }) +} + +func New() *Dnsmasq { + return &Dnsmasq{ + Config: Config{ + Protocol: "udp", + Address: "127.0.0.1:53", + Timeout: web.Duration(time.Second), + }, + + newDNSClient: func(network string, timeout time.Duration) dnsClient { + return &dns.Client{ + Net: network, + Timeout: timeout, + } + }, + } +} + +type Config struct { + UpdateEvery int `yaml:"update_every" json:"update_every"` + Protocol string `yaml:"protocol" json:"protocol"` + Address string `yaml:"address" json:"address"` + Timeout web.Duration `yaml:"timeout" json:"timeout"` +} + +type ( + Dnsmasq struct { + module.Base + Config `yaml:",inline" json:""` + + charts *module.Charts + + dnsClient dnsClient + newDNSClient func(network string, timeout time.Duration) dnsClient + } + dnsClient interface { + Exchange(msg *dns.Msg, address string) (resp *dns.Msg, rtt time.Duration, err error) + } +) + +func (d *Dnsmasq) Configuration() any { + return d.Config +} + +func (d *Dnsmasq) Init() error { + err := d.validateConfig() + if err != nil { + d.Errorf("config validation: %v", err) + return err + } + + client, err := d.initDNSClient() + if err != nil { + d.Errorf("init DNS client: %v", err) + return err + } + d.dnsClient = client + + charts, err := d.initCharts() + if err != nil { + d.Errorf("init charts: %v", err) + return err + } + d.charts = charts + + return nil +} + +func (d *Dnsmasq) Check() error { + mx, err := d.collect() + if err != nil { + d.Error(err) + return err + } + if len(mx) == 0 { + return errors.New("no metrics collected") + + } + return nil +} + +func (d *Dnsmasq) Charts() *module.Charts { + return d.charts +} + +func (d *Dnsmasq) Collect() map[string]int64 { + ms, err := d.collect() + if err != nil { + d.Error(err) + } + + if len(ms) == 0 { + return nil + } + return ms +} + +func (d *Dnsmasq) Cleanup() {} |