diff options
Diffstat (limited to 'src/go/collectors/go.d.plugin/modules/isc_dhcpd/isc_dhcpd.go')
-rw-r--r-- | src/go/collectors/go.d.plugin/modules/isc_dhcpd/isc_dhcpd.go | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/src/go/collectors/go.d.plugin/modules/isc_dhcpd/isc_dhcpd.go b/src/go/collectors/go.d.plugin/modules/isc_dhcpd/isc_dhcpd.go new file mode 100644 index 000000000..c51abc75b --- /dev/null +++ b/src/go/collectors/go.d.plugin/modules/isc_dhcpd/isc_dhcpd.go @@ -0,0 +1,121 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +package isc_dhcpd + +import ( + _ "embed" + "errors" + "time" + + "github.com/netdata/netdata/go/go.d.plugin/agent/module" +) + +//go:embed "config_schema.json" +var configSchema string + +func init() { + module.Register("isc_dhcpd", module.Creator{ + JobConfigSchema: configSchema, + Defaults: module.Defaults{ + UpdateEvery: 1, + }, + Create: func() module.Module { return New() }, + Config: func() any { return &Config{} }, + }) +} + +func New() *DHCPd { + return &DHCPd{ + Config: Config{ + LeasesPath: "/var/lib/dhcp/dhcpd.leases", + }, + + collected: make(map[string]int64), + } +} + +type ( + Config struct { + UpdateEvery int `yaml:"update_every,omitempty" json:"update_every"` + LeasesPath string `yaml:"leases_path" json:"leases_path"` + // TODO: parse config file to extract configured pool + Pools []PoolConfig `yaml:"pools" json:"pools"` + } + PoolConfig struct { + Name string `yaml:"name" json:"name"` + Networks string `yaml:"networks" json:"networks"` + } +) + +type DHCPd struct { + module.Base + Config `yaml:",inline" json:""` + + charts *module.Charts + + pools []ipPool + leasesModTime time.Time + collected map[string]int64 +} + +func (d *DHCPd) Configuration() any { + return d.Config +} + +func (d *DHCPd) Init() error { + err := d.validateConfig() + if err != nil { + d.Errorf("config validation: %v", err) + return err + } + + pools, err := d.initPools() + if err != nil { + d.Errorf("ip pools init: %v", err) + return err + } + d.pools = pools + + charts, err := d.initCharts(pools) + if err != nil { + d.Errorf("charts init: %v", err) + return err + } + d.charts = charts + + d.Debugf("monitoring leases file: %v", d.Config.LeasesPath) + d.Debugf("monitoring ip pools: %v", d.Config.Pools) + + return nil +} + +func (d *DHCPd) 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 *DHCPd) Charts() *module.Charts { + return d.charts +} + +func (d *DHCPd) Collect() map[string]int64 { + mx, err := d.collect() + if err != nil { + d.Error(err) + } + + if len(mx) == 0 { + return nil + } + + return mx +} + +func (d *DHCPd) Cleanup() {} |