netdata/netdata

// SPDX-License-Identifier: GPL-3.0-or-later

package megacli

import (
    _ "embed"
    "errors"
    "time"

    "github.com/netdata/netdata/go/go.d.plugin/agent/module"
    "github.com/netdata/netdata/go/go.d.plugin/pkg/web"
)

//go:embed "config_schema.json"
var configSchema string

func init() {
    module.Register("megacli", module.Creator{
        JobConfigSchema: configSchema,
        Defaults: module.Defaults{
            UpdateEvery: 10,
        },
        Create: func() module.Module { return New() },
    })
}

func New() *MegaCli {
    return &MegaCli{
        Config: Config{
            Timeout: web.Duration(time.Second * 2),
        },
        charts:   &module.Charts{},
        adapters: make(map[string]bool),
        drives:   make(map[string]bool),
        bbu:      make(map[string]bool),
    }
}

type Config struct {
    UpdateEvery int          `yaml:"update_every" json:"update_every"`
    Timeout     web.Duration `yaml:"timeout" json:"timeout"`
}

type (
    MegaCli struct {
        module.Base
        Config `yaml:",inline" json:""`

        charts *module.Charts

        exec megaCli

        adapters map[string]bool
        drives   map[string]bool
        bbu      map[string]bool
    }
    megaCli interface {
        physDrivesInfo() ([]byte, error)
        bbuInfo() ([]byte, error)
    }
)

func (m *MegaCli) Configuration() any {
    return m.Config
}

func (m *MegaCli) Init() error {
    lvmExec, err := m.initMegaCliExec()
    if err != nil {
        m.Errorf("megacli exec initialization: %v", err)
        return err
    }
    m.exec = lvmExec

    return nil
}

func (m *MegaCli) Check() error {
    mx, err := m.collect()
    if err != nil {
        m.Error(err)
        return err
    }

    if len(mx) == 0 {
        return errors.New("no metrics collected")
    }

    return nil
}

func (m *MegaCli) Charts() *module.Charts {
    return m.charts
}

func (m *MegaCli) Collect() map[string]int64 {
    mx, err := m.collect()
    if err != nil {
        m.Error(err)
    }

    if len(mx) == 0 {
        return nil
    }

    return mx
}

func (m *MegaCli) Cleanup() {}