1 files changed, 133 insertions, 0 deletions
diff --git a/src/go/collectors/go.d.plugin/modules/pika/pika.go b/src/go/collectors/go.d.plugin/modules/pika/pika.go
new file mode 100644
index 000000000..60819cdc8
--- /dev/null
+++ b/src/go/collectors/go.d.plugin/modules/pika/pika.go
@@ -0,0 +1,133 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package pika
+
+import (
+	"context"
+	_ "embed"
+	"errors"
+	"time"
+
+	"github.com/netdata/netdata/go/go.d.plugin/agent/module"
+	"github.com/netdata/netdata/go/go.d.plugin/pkg/tlscfg"
+	"github.com/netdata/netdata/go/go.d.plugin/pkg/web"
+
+	"github.com/blang/semver/v4"
+	"github.com/go-redis/redis/v8"
+)
+
+//go:embed "config_schema.json"
+var configSchema string
+
+func init() {
+	module.Register("pika", module.Creator{
+		JobConfigSchema: configSchema,
+		Create:          func() module.Module { return New() },
+	})
+}
+
+func New() *Pika {
+	return &Pika{
+		Config: Config{
+			Address: "redis://@localhost:9221",
+			Timeout: web.Duration(time.Second),
+		},
+
+		collectedCommands: make(map[string]bool),
+		collectedDbs:      make(map[string]bool),
+	}
+}
+
+type Config struct {
+	tlscfg.TLSConfig `yaml:",inline" json:""`
+	UpdateEvery      int          `yaml:"update_every" json:"update_every"`
+	Address          string       `yaml:"address" json:"address"`
+	Timeout          web.Duration `yaml:"timeout" json:"timeout"`
+}
+
+type (
+	Pika struct {
+		module.Base
+		Config `yaml:",inline" json:""`
+
+		charts *module.Charts
+
+		pdb redisClient
+
+		server            string
+		version           *semver.Version
+		collectedCommands map[string]bool
+		collectedDbs      map[string]bool
+	}
+	redisClient interface {
+		Info(ctx context.Context, section ...string) *redis.StringCmd
+		Close() error
+	}
+)
+
+func (p *Pika) Configuration() any {
+	return p.Config
+}
+
+func (p *Pika) Init() error {
+	err := p.validateConfig()
+	if err != nil {
+		p.Errorf("config validation: %v", err)
+		return err
+	}
+
+	pdb, err := p.initRedisClient()
+	if err != nil {
+		p.Errorf("init redis client: %v", err)
+		return err
+	}
+	p.pdb = pdb
+
+	charts, err := p.initCharts()
+	if err != nil {
+		p.Errorf("init charts: %v", err)
+		return err
+	}
+	p.charts = charts
+
+	return nil
+}
+
+func (p *Pika) Check() error {
+	mx, err := p.collect()
+	if err != nil {
+		p.Error(err)
+		return err
+	}
+	if len(mx) == 0 {
+		return errors.New("no metrics collected")
+	}
+	return nil
+}
+
+func (p *Pika) Charts() *module.Charts {
+	return p.charts
+}
+
+func (p *Pika) Collect() map[string]int64 {
+	ms, err := p.collect()
+	if err != nil {
+		p.Error(err)
+	}
+
+	if len(ms) == 0 {
+		return nil
+	}
+	return ms
+}
+
+func (p *Pika) Cleanup() {
+	if p.pdb == nil {
+		return
+	}
+	err := p.pdb.Close()
+	if err != nil {
+		p.Warningf("cleanup: error on closing redis client [%s]: %v", p.Address, err)
+	}
+	p.pdb = nil
+}