diff options
Diffstat (limited to 'src/go/collectors/go.d.plugin/modules/pika/pika.go')
-rw-r--r-- | src/go/collectors/go.d.plugin/modules/pika/pika.go | 133 |
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 +} |