| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | package dummy |
| 4 | |
| 5 | import ( |
| 6 | "context" |
| 7 | "fmt" |
| 8 | "log/slog" |
| 9 | |
| 10 | "github.com/netdata/netdata/go/plugins/logger" |
| 11 | "github.com/netdata/netdata/go/plugins/plugin/framework/confgroup" |
| 12 | ) |
| 13 | |
| 14 | func NewDiscovery(cfg Config) (*Discovery, error) { |
| 15 | if err := validateConfig(cfg); err != nil { |
| 16 | return nil, fmt.Errorf("config validation: %v", err) |
| 17 | } |
| 18 | d := &Discovery{ |
| 19 | Logger: logger.New().With( |
| 20 | slog.String("component", "discovery"), |
| 21 | slog.String("discoverer", "dummy"), |
| 22 | ), |
| 23 | reg: cfg.Registry, |
| 24 | names: cfg.Names, |
| 25 | } |
| 26 | return d, nil |
| 27 | } |
| 28 | |
| 29 | type Discovery struct { |
| 30 | *logger.Logger |
| 31 | |
| 32 | reg confgroup.Registry |
| 33 | names []string |
| 34 | } |
| 35 | |
| 36 | func (d *Discovery) String() string { |
| 37 | return d.Name() |
| 38 | } |
| 39 | |
| 40 | func (d *Discovery) Name() string { |
| 41 | return "dummy discovery" |
| 42 | } |
| 43 | |
| 44 | func (d *Discovery) Run(ctx context.Context, in chan<- []*confgroup.Group) { |
| 45 | d.Info("instance is started") |
| 46 | defer func() { d.Info("instance is stopped") }() |
| 47 | |
| 48 | select { |
| 49 | case <-ctx.Done(): |
| 50 | case in <- d.groups(): |
| 51 | } |
| 52 | |
| 53 | close(in) |
| 54 | } |
| 55 | |
| 56 | func (d *Discovery) groups() []*confgroup.Group { |
| 57 | group := &confgroup.Group{Source: "internal"} |
| 58 | |
| 59 | for _, name := range d.names { |
| 60 | def, ok := d.reg.Lookup(name) |
| 61 | if !ok { |
| 62 | continue |
| 63 | } |
| 64 | src := "internal" |
| 65 | cfg := confgroup.Config{} |
| 66 | cfg.SetModule(name) |
| 67 | cfg.SetProvider("dummy") |
| 68 | cfg.SetSourceType(confgroup.TypeStock) |
| 69 | cfg.SetSource(src) |
| 70 | cfg.ApplyDefaults(def) |
| 71 | |
| 72 | group.Configs = append(group.Configs, cfg) |
| 73 | } |
| 74 | |
| 75 | return []*confgroup.Group{group} |
| 76 | } |