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Diffstat (limited to '')
-rw-r--r-- | src/go/collectors/go.d.plugin/modules/docker_engine/docker_engine.go | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/src/go/collectors/go.d.plugin/modules/docker_engine/docker_engine.go b/src/go/collectors/go.d.plugin/modules/docker_engine/docker_engine.go new file mode 100644 index 000000000..629048dcd --- /dev/null +++ b/src/go/collectors/go.d.plugin/modules/docker_engine/docker_engine.go @@ -0,0 +1,124 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +package docker_engine + +import ( + _ "embed" + "errors" + "time" + + "github.com/netdata/netdata/go/go.d.plugin/agent/module" + "github.com/netdata/netdata/go/go.d.plugin/pkg/prometheus" + "github.com/netdata/netdata/go/go.d.plugin/pkg/web" +) + +//go:embed "config_schema.json" +var configSchema string + +func init() { + module.Register("docker_engine", module.Creator{ + JobConfigSchema: configSchema, + Create: func() module.Module { return New() }, + }) +} + +func New() *DockerEngine { + return &DockerEngine{ + Config: Config{ + HTTP: web.HTTP{ + Request: web.Request{ + URL: "http://127.0.0.1:9323/metrics", + }, + Client: web.Client{ + Timeout: web.Duration(time.Second), + }, + }, + }, + } +} + +type Config struct { + web.HTTP `yaml:",inline" json:""` + UpdateEvery int `yaml:"update_every" json:"update_every"` +} + +type DockerEngine struct { + module.Base + Config `yaml:",inline" json:""` + + prom prometheus.Prometheus + + isSwarmManager bool + hasContainerStates bool +} + +func (de *DockerEngine) Configuration() any { + return de.Config +} + +func (de *DockerEngine) Init() error { + if err := de.validateConfig(); err != nil { + de.Errorf("config validation: %v", err) + return err + } + + prom, err := de.initPrometheusClient() + if err != nil { + de.Error(err) + return err + } + de.prom = prom + + return nil +} + +func (de *DockerEngine) Check() error { + mx, err := de.collect() + if err != nil { + de.Error(err) + return err + } + if len(mx) == 0 { + return errors.New("no metrics collected") + + } + return nil +} + +func (de *DockerEngine) Charts() *Charts { + cs := charts.Copy() + if !de.hasContainerStates { + if err := cs.Remove("engine_daemon_container_states_containers"); err != nil { + de.Warning(err) + } + } + + if !de.isSwarmManager { + return cs + } + + if err := cs.Add(*swarmManagerCharts.Copy()...); err != nil { + de.Warning(err) + } + + return cs +} + +func (de *DockerEngine) Collect() map[string]int64 { + mx, err := de.collect() + if err != nil { + de.Error(err) + return nil + } + + if len(mx) == 0 { + return nil + } + return mx +} + +func (de *DockerEngine) Cleanup() { + if de.prom != nil && de.prom.HTTPClient() != nil { + de.prom.HTTPClient().CloseIdleConnections() + } +} |