add docker observer component

Author: Mark Stumpf

docs/components.md

@@ -14,19 +14,19 @@ removed prior to the 1.0 release.
 
 | Receivers                                                                                                                         | Processors                                                                                                                                  | Exporters                                                                                                            | Extensions                                                                                                                   |
 | :--------------:                                                                                                                  | :--------:                                                                                                                                  | :-------:                                                                                                            | :--------:                                                                                                                   |
-| [fluentforward](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/fluentforwardreceiver)       | [attributes](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/attributesprocessor)                     | [file](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/exporter/fileexporter)            | [ecs_observer](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/observer/ecsobserver)   |
-| [hostmetrics](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/hostmetricsreceiver)           | [batch](https://github.com/open-telemetry/opentelemetry-collector/tree/main/processor/batchprocessor)                                       | [logging](https://github.com/open-telemetry/opentelemetry-collector/tree/main/exporter/loggingexporter)              | [healthcheck](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/healthcheckextension)    |
-| [jaeger](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/jaegerreceiver)                     | [groupbyattrs](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/groupbyattrsprocessor)                 | [otlp](https://github.com/open-telemetry/opentelemetry-collector/tree/main/exporter/otlpexporter)                    | [httpforwarder](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/httpforwarder)         |
-| [k8s_cluster](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/k8sclusterreceiver)            | [filter](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/filterprocessor)                             | [otlphttp](https://github.com/open-telemetry/opentelemetry-collector/tree/main/exporter/otlphttpexporter)            | [host_observer](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/observer/hostobserver) |
-| [kubeletstats](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/kubeletstatsreceiver)         | [k8s_tagger](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/k8sattributesprocessor)                            | [sapm](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/exporter/sapmexporter)            | [k8s_observer](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/observer/k8sobserver)   |
-| [otlp](https://github.com/open-telemetry/opentelemetry-collector/tree/main/receiver/otlpreceiver)                                 | [memorylimiter](https://github.com/open-telemetry/opentelemetry-collector/blob/main/processor/memorylimiterprocessor)                       | [signalfx](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/exporter/signalfxexporter)    | [pprof](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/pprofextension)                |
-| [receiver_creator](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/receivercreator)          | [metricstransform](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/metricstransformprocessor)         | [splunk_hec](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/exporter/splunkhecexporter) | [smartagent](../internal/extension/smartagentextension)                                                                      |
-| [sapm](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/sapmreceiver)                         | [probabilisticsampler](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/probabilisticsamplerprocessor) |                                                                                                                      | [zpages](https://github.com/open-telemetry/opentelemetry-collector/tree/main/extension/zpagesextension)                      |
-| [signalfx](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/signalfxreceiver)                 | [resource](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/resourceprocessor)                         |                                                                                                                      |                                                                                                                              |
-| [simpleprometheus](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/simpleprometheusreceiver) | [resourcedetection](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/resourcedetectionprocessor)       |                                                                                                                      |                                                                                                                              |
-| [smartagent](../internal/receiver/smartagentreceiver)                                                                             | [routing](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/routingprocessor)                           |                                                                                                                      |                                                                                                                              |
-| [splunk_hec](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/splunkhecreceiver)              | [span](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/spanprocessor)                                                                                                                                           |                                                                                                                      |                                                                                                                              |
-| [zipkin](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/zipkinreceiver)                     |                                                                                                                                             |                                                                                                                      |                                                                                                                              |
+| [fluentforward](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/fluentforwardreceiver)       | [attributes](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/attributesprocessor)                     | [file](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/exporter/fileexporter)            | [ecs_observer](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/observer/ecsobserver)       | | |
+| [hostmetrics](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/hostmetricsreceiver)           | [batch](https://github.com/open-telemetry/opentelemetry-collector/tree/main/processor/batchprocessor)                                       | [logging](https://github.com/open-telemetry/opentelemetry-collector/tree/main/exporter/loggingexporter)              | [docker_observer](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/observer/dockerobserver) | | |
+| [jaeger](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/jaegerreceiver)                     | [groupbyattrs](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/groupbyattrsprocessor)                 | [otlp](https://github.com/open-telemetry/opentelemetry-collector/tree/main/exporter/otlpexporter)                    | [healthcheck](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/healthcheckextension)        | | |
+| [k8s_cluster](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/k8sclusterreceiver)            | [filter](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/filterprocessor)                             | [otlphttp](https://github.com/open-telemetry/opentelemetry-collector/tree/main/exporter/otlphttpexporter)            | [httpforwarder](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/httpforwarder)             | | |
+| [kubeletstats](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/kubeletstatsreceiver)         | [k8s_tagger](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/k8sattributesprocessor)                  | [sapm](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/exporter/sapmexporter)            | [host_observer](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/observer/hostobserver)     | | |
+| [otlp](https://github.com/open-telemetry/opentelemetry-collector/tree/main/receiver/otlpreceiver)                                 | [memorylimiter](https://github.com/open-telemetry/opentelemetry-collector/blob/main/processor/memorylimiterprocessor)                       | [signalfx](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/exporter/signalfxexporter)    | [k8s_observer](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/observer/k8sobserver)       | | |
+| [receiver_creator](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/receivercreator)          | [metricstransform](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/metricstransformprocessor)         | [splunk_hec](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/exporter/splunkhecexporter) | [pprof](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/extension/pprofextension)                    | | |
+| [sapm](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/sapmreceiver)                         | [probabilisticsampler](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/probabilisticsamplerprocessor) |                                                                                                                      | [smartagent](../internal/extension/smartagentextension)                                                                          | | |
+| [signalfx](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/signalfxreceiver)                 | [resource](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/resourceprocessor)                         |                                                                                                                      | [zpages](https://github.com/open-telemetry/opentelemetry-collector/tree/main/extension/zpagesextension)                          | | |
+| [simpleprometheus](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/simpleprometheusreceiver) | [resourcedetection](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/resourcedetectionprocessor)       |                                                                                                                      |                                                                                                                                  | | |
+| [smartagent](../internal/receiver/smartagentreceiver)                                                                             | [routing](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/routingprocessor)                           |                                                                                                                      |                                                                                                                                  | | |
+| [splunk_hec](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/splunkhecreceiver)              | [span](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/spanprocessor)                                 |                                                                                                                      |                                                                                                                                  | | |
+| [zipkin](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/zipkinreceiver)                     |                                                                                                                                             |                                                                                                                      |                                                                                                                                  | | |
 
 ## Alpha
 

go.mod

@@ -80,6 +80,8 @@ require (
 	gopkg.in/yaml.v2 v2.4.0
 )
 
+require github.com/open-telemetry/opentelemetry-collector-contrib/extension/observer/dockerobserver v0.41.0
+
 require (
 	cloud.google.com/go v0.99.0 // indirect
 	code.cloudfoundry.org/go-diodes v0.0.0-20180905200951-72629b5276e3 // indirect
@@ -262,6 +264,7 @@ require (
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/aws/ecsutil v0.41.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/common v0.41.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/coreinternal v0.41.0 // indirect
+	github.com/open-telemetry/opentelemetry-collector-contrib/internal/docker v0.41.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/k8sconfig v0.41.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/kubelet v0.41.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/sharedcomponent v0.41.0 // indirect

go.sum

@@ -1917,6 +1917,8 @@ github.com/open-telemetry/opentelemetry-collector-contrib/extension/httpforwarde
 github.com/open-telemetry/opentelemetry-collector-contrib/extension/httpforwarder v0.41.0/go.mod h1:mZAeCRbmwVEuK1f1LDZTdi+RbHjBIjUbli4csu9jdEc=
 github.com/open-telemetry/opentelemetry-collector-contrib/extension/observer v0.41.0 h1:8MrljIIJlH1UbbyeR26I3zLcFCTq1YzNM067RNn+Hgw=
 github.com/open-telemetry/opentelemetry-collector-contrib/extension/observer v0.41.0/go.mod h1:fULIHnhf5twQSrokuBaGmzgr5EQsIi6+KcH82HcjZ9U=
+github.com/open-telemetry/opentelemetry-collector-contrib/extension/observer/dockerobserver v0.41.0 h1:BdwmrO37BuWjQt569cgY6zF+cYl6CHHjPoBUCdK/zcg=
+github.com/open-telemetry/opentelemetry-collector-contrib/extension/observer/dockerobserver v0.41.0/go.mod h1:o+YbLr/fKWPjstxfcE33DlTe3OnEPHiDZnolnyXvIOo=
 github.com/open-telemetry/opentelemetry-collector-contrib/extension/observer/ecsobserver v0.41.0 h1:Am1QYzUET2TQW3FK6cf71Ebc7hcOdWojg97zioSq/To=
 github.com/open-telemetry/opentelemetry-collector-contrib/extension/observer/ecsobserver v0.41.0/go.mod h1:HL+PQRzu0sXZmHsMBX/f3aDnGEgk00KDEj4K/kzmg+I=
 github.com/open-telemetry/opentelemetry-collector-contrib/extension/observer/hostobserver v0.41.0 h1:MZEbMBw5HYPjuG9qqbSEmCix0et2MPETK0DnX9cT/eg=
@@ -1933,6 +1935,8 @@ github.com/open-telemetry/opentelemetry-collector-contrib/internal/common v0.41.
 github.com/open-telemetry/opentelemetry-collector-contrib/internal/common v0.41.0/go.mod h1:LqGFynCdFZlyBEnEiuJw6VK/ErAgsaIJjTpqmxeTkuc=
 github.com/open-telemetry/opentelemetry-collector-contrib/internal/coreinternal v0.41.0 h1:5UTs5KSdXBMJEQndt0HXn8xLV++pHBkPhmlbiQ67v9s=
 github.com/open-telemetry/opentelemetry-collector-contrib/internal/coreinternal v0.41.0/go.mod h1:p853VADd+4pfW9fPaCfEt4eD0PnHm7bVGriqjLF5rMk=
+github.com/open-telemetry/opentelemetry-collector-contrib/internal/docker v0.41.0 h1:PdYSTl51a+LzTvaKO1E8xbpQiCsa6/posv/ppwlpp6U=
+github.com/open-telemetry/opentelemetry-collector-contrib/internal/docker v0.41.0/go.mod h1:2aEJ5zZOu1B7ntD5tS2LII3H/PiiQNXfvjPN+qeZQ+A=
 github.com/open-telemetry/opentelemetry-collector-contrib/internal/k8sconfig v0.41.0 h1:X2TOHfFm9cr1Q/rlaU+0f+fCMr7Vfl4jfrY/keoE2vQ=
 github.com/open-telemetry/opentelemetry-collector-contrib/internal/k8sconfig v0.41.0/go.mod h1:/s7g3kFBhHAs4Qm07bm3oXqz0cjcmwpeaUlapTC+/6c=
 github.com/open-telemetry/opentelemetry-collector-contrib/internal/kubelet v0.41.0 h1:Lst40Rc2fZ2AZsz81xqUPfTIz9TUVNLiAI58gfOr54U=

internal/components/components.go

@@ -23,6 +23,7 @@ import (
 	"github.com/open-telemetry/opentelemetry-collector-contrib/exporter/splunkhecexporter"
 	"github.com/open-telemetry/opentelemetry-collector-contrib/extension/healthcheckextension"
 	"github.com/open-telemetry/opentelemetry-collector-contrib/extension/httpforwarder"
+	"github.com/open-telemetry/opentelemetry-collector-contrib/extension/observer/dockerobserver"
 	"github.com/open-telemetry/opentelemetry-collector-contrib/extension/observer/ecsobserver"
 	"github.com/open-telemetry/opentelemetry-collector-contrib/extension/observer/hostobserver"
 	"github.com/open-telemetry/opentelemetry-collector-contrib/extension/observer/k8sobserver"
@@ -79,6 +80,7 @@ func Get() (component.Factories, error) {
 	var errs []error
 	extensions, err := component.MakeExtensionFactoryMap(
 		ecsobserver.NewFactory(),
+		dockerobserver.NewFactory(),
 		healthcheckextension.NewFactory(),
 		filestorage.NewFactory(),
 		hostobserver.NewFactory(),

internal/components/components_test.go

@@ -27,6 +27,7 @@ import (
 func TestDefaultComponents(t *testing.T) {
 	expectedExtensions := []config.Type{
 		"ecs_observer",
+		"docker_observer",
 		"health_check",
 		"host_observer",
 		"http_forwarder",