firehol/netdata

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

package scaleio

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

    "github.com/netdata/netdata/go/plugins/plugin/go.d/agent/module"
    "github.com/netdata/netdata/go/plugins/plugin/go.d/modules/scaleio/client"
    "github.com/netdata/netdata/go/plugins/plugin/go.d/pkg/confopt"
    "github.com/netdata/netdata/go/plugins/plugin/go.d/pkg/web"
)

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

func init() {
    module.Register("scaleio", module.Creator{
        JobConfigSchema: configSchema,
        Create:          func() module.Module { return New() },
        Config:          func() any { return &Config{} },
    })
}

func New() *ScaleIO {
    return &ScaleIO{
        Config: Config{
            HTTPConfig: web.HTTPConfig{
                RequestConfig: web.RequestConfig{
                    URL: "https://127.0.0.1",
                },
                ClientConfig: web.ClientConfig{
                    Timeout: confopt.Duration(time.Second),
                },
            },
        },
        charts:  systemCharts.Copy(),
        charted: make(map[string]bool),
    }
}

type Config struct {
    UpdateEvery    int `yaml:"update_every,omitempty" json:"update_every"`
    web.HTTPConfig `yaml:",inline" json:""`
}

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

        charts *module.Charts

        client *client.Client

        discovered      instances
        charted         map[string]bool
        lastDiscoveryOK bool
        runs            int
    }
    instances struct {
        sdc  map[string]client.Sdc
        pool map[string]client.StoragePool
    }
)

func (s *ScaleIO) Configuration() any {
    return s.Config
}

func (s *ScaleIO) Init() error {
    if s.Username == "" || s.Password == "" {
        s.Error("username and password aren't set")
        return errors.New("username and password aren't set")
    }

    c, err := client.New(s.ClientConfig, s.RequestConfig)
    if err != nil {
        s.Errorf("error on creating ScaleIO client: %v", err)
        return err
    }
    s.client = c

    s.Debugf("using URL %s", s.URL)
    s.Debugf("using timeout: %s", s.Timeout)

    return nil
}

func (s *ScaleIO) Check() error {
    if err := s.client.Login(); err != nil {
        s.Error(err)
        return err
    }
    mx, err := s.collect()
    if err != nil {
        s.Error(err)
        return err
    }
    if len(mx) == 0 {
        return errors.New("no metrics collected")
    }
    return nil
}

func (s *ScaleIO) Charts() *module.Charts {
    return s.charts
}

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

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

func (s *ScaleIO) Cleanup() {
    if s.client == nil {
        return
    }
    _ = s.client.Logout()
}