diff options
Diffstat (limited to 'src/go/plugin/go.d/modules/riakkv/riakkv.go')
-rw-r--r-- | src/go/plugin/go.d/modules/riakkv/riakkv.go | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/src/go/plugin/go.d/modules/riakkv/riakkv.go b/src/go/plugin/go.d/modules/riakkv/riakkv.go new file mode 100644 index 000000000..64aeda1c1 --- /dev/null +++ b/src/go/plugin/go.d/modules/riakkv/riakkv.go @@ -0,0 +1,122 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +package riakkv + +import ( + _ "embed" + "errors" + "net/http" + "sync" + "time" + + "github.com/netdata/netdata/go/plugins/plugin/go.d/agent/module" + "github.com/netdata/netdata/go/plugins/plugin/go.d/pkg/web" +) + +//go:embed "config_schema.json" +var configSchema string + +func init() { + module.Register("riakkv", module.Creator{ + Create: func() module.Module { return New() }, + // Riak updates the metrics on the /stats endpoint every 1 second. + // If we use 1 here, it means we might get weird jitter in the graph, + // so the default is set to 2 seconds to prevent that. + Defaults: module.Defaults{ + UpdateEvery: 2, + }, + JobConfigSchema: configSchema, + Config: func() any { return &Config{} }, + }) +} + +func New() *RiakKv { + return &RiakKv{ + Config: Config{ + HTTP: web.HTTP{ + Request: web.Request{ + // https://docs.riak.com/riak/kv/2.2.3/developing/api/http/status.1.html + URL: "http://127.0.0.1:8098/stats", + }, + Client: web.Client{ + Timeout: web.Duration(time.Second), + }, + }, + }, + once: &sync.Once{}, + charts: charts.Copy(), + } +} + +type Config struct { + UpdateEvery int `yaml:"update_every,omitempty" json:"update_every"` + web.HTTP `yaml:",inline" json:""` +} + +type RiakKv struct { + module.Base + Config `yaml:",inline" json:""` + + once *sync.Once + charts *module.Charts + + httpClient *http.Client +} + +func (r *RiakKv) Configuration() any { + return r.Config +} + +func (r *RiakKv) Init() error { + if r.URL == "" { + r.Errorf("url required but not set") + return errors.New("url not set") + } + + httpClient, err := web.NewHTTPClient(r.Client) + if err != nil { + r.Errorf("init HTTP client: %v", err) + return err + } + r.httpClient = httpClient + + r.Debugf("using URL %s", r.URL) + r.Debugf("using timeout: %s", r.Timeout) + + return nil +} + +func (r *RiakKv) Check() error { + mx, err := r.collect() + if err != nil { + r.Error(err) + return err + } + if len(mx) == 0 { + return errors.New("no metrics collected") + + } + return nil +} + +func (r *RiakKv) Charts() *module.Charts { + return r.charts +} + +func (r *RiakKv) Collect() map[string]int64 { + mx, err := r.collect() + if err != nil { + r.Error(err) + } + + if len(mx) == 0 { + return nil + } + return mx +} + +func (r *RiakKv) Cleanup() { + if r.httpClient != nil { + r.httpClient.CloseIdleConnections() + } +} |