1 files changed, 121 insertions, 0 deletions
diff --git a/src/go/collectors/go.d.plugin/modules/docker/docker.go b/src/go/collectors/go.d.plugin/modules/docker/docker.go
new file mode 100644
index 000000000..7328a7ca6
--- /dev/null
+++ b/src/go/collectors/go.d.plugin/modules/docker/docker.go
@@ -0,0 +1,121 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package docker
+
+import (
+	"context"
+	_ "embed"
+	"errors"
+	"time"
+
+	"github.com/netdata/netdata/go/go.d.plugin/agent/module"
+	"github.com/netdata/netdata/go/go.d.plugin/pkg/web"
+
+	"github.com/docker/docker/api/types"
+	typesContainer "github.com/docker/docker/api/types/container"
+	typesImage "github.com/docker/docker/api/types/image"
+	typesSystem "github.com/docker/docker/api/types/system"
+	docker "github.com/docker/docker/client"
+)
+
+//go:embed "config_schema.json"
+var configSchema string
+
+func init() {
+	module.Register("docker", module.Creator{
+		JobConfigSchema: configSchema,
+		Create:          func() module.Module { return New() },
+	})
+}
+
+func New() *Docker {
+	return &Docker{
+		Config: Config{
+			Address:              docker.DefaultDockerHost,
+			Timeout:              web.Duration(time.Second * 2),
+			CollectContainerSize: false,
+		},
+
+		charts: summaryCharts.Copy(),
+		newClient: func(cfg Config) (dockerClient, error) {
+			return docker.NewClientWithOpts(docker.WithHost(cfg.Address))
+		},
+		containers: make(map[string]bool),
+	}
+}
+
+type Config struct {
+	UpdateEvery          int          `yaml:"update_every" json:"update_every"`
+	Address              string       `yaml:"address" json:"address"`
+	Timeout              web.Duration `yaml:"timeout" json:"timeout"`
+	CollectContainerSize bool         `yaml:"collect_container_size" json:"collect_container_size"`
+}
+
+type (
+	Docker struct {
+		module.Base
+		Config `yaml:",inline" json:""`
+
+		charts *module.Charts
+
+		client    dockerClient
+		newClient func(Config) (dockerClient, error)
+
+		verNegotiated bool
+		containers    map[string]bool
+	}
+	dockerClient interface {
+		NegotiateAPIVersion(context.Context)
+		Info(context.Context) (typesSystem.Info, error)
+		ImageList(context.Context, types.ImageListOptions) ([]typesImage.Summary, error)
+		ContainerList(context.Context, typesContainer.ListOptions) ([]types.Container, error)
+		Close() error
+	}
+)
+
+func (d *Docker) Configuration() any {
+	return d.Config
+}
+
+func (d *Docker) Init() error {
+	return nil
+}
+
+func (d *Docker) Check() error {
+	mx, err := d.collect()
+	if err != nil {
+		d.Error(err)
+		return err
+	}
+	if len(mx) == 0 {
+		return errors.New("no metrics collected")
+
+	}
+	return nil
+}
+
+func (d *Docker) Charts() *module.Charts {
+	return d.charts
+}
+
+func (d *Docker) Collect() map[string]int64 {
+	mx, err := d.collect()
+	if err != nil {
+		d.Error(err)
+	}
+
+	if len(mx) == 0 {
+		return nil
+	}
+	return mx
+}
+
+func (d *Docker) Cleanup() {
+	if d.client == nil {
+		return
+	}
+	if err := d.client.Close(); err != nil {
+		d.Warningf("error on closing docker client: %v", err)
+	}
+	d.client = nil
+}