[processor/resourcedetection] Add support for Alibaba Cloud ECS

[paulojmdias]

Description

This PR adds support for resource detection in Alibaba Cloud ECS. It uses values for cloud.platform and cloud.provider which are already in semantic conventions.

I'm proposing to be a code owner for this detector 🙌

Link to tracking issue

Fixes #45632

Testing

Added multiple tests, including E2E tests, and I personally tested them on a ECS server.

2026-01-26T06:03:54.852+0800	debug	builders/builders.go:26	Alpha component. May change in the future.	{"resource": {"service.instance.id": "45759da4-5a87-45a1-8d7b-adc8343f2dbc", "service.name": "otelcontribcol", "service.version": "0.144.0-dev"}, "otelcol.component.id": "debug", "otelcol.component.kind": "exporter", "otelcol.signal": "metrics"}
2026-01-26T06:03:54.853+0800	debug	builders/builders.go:26	Beta component. May change in the future.	{"resource": {"service.instance.id": "45759da4-5a87-45a1-8d7b-adc8343f2dbc", "service.name": "otelcontribcol", "service.version": "0.144.0-dev"}, "otelcol.component.id": "resourcedetection", "otelcol.component.kind": "processor", "otelcol.pipeline.id": "metrics", "otelcol.signal": "metrics"}
2026-01-26T06:03:54.854+0800	debug	builders/builders.go:26	Beta component. May change in the future.	{"resource": {"service.instance.id": "45759da4-5a87-45a1-8d7b-adc8343f2dbc", "service.name": "otelcontribcol", "service.version": "0.144.0-dev"}, "otelcol.component.id": "hostmetrics", "otelcol.component.kind": "receiver", "otelcol.signal": "metrics"}
2026-01-26T06:03:54.855+0800	info	[email protected]/service.go:239	Starting otelcontribcol...	{"resource": {"service.instance.id": "45759da4-5a87-45a1-8d7b-adc8343f2dbc", "service.name": "otelcontribcol", "service.version": "0.144.0-dev"}, "Version": "0.144.0-dev", "NumCPU": 1}
2026-01-26T06:03:54.855+0800	info	extensions/extensions.go:40	Starting extensions...	{"resource": {"service.instance.id": "45759da4-5a87-45a1-8d7b-adc8343f2dbc", "service.name": "otelcontribcol", "service.version": "0.144.0-dev"}}
2026-01-26T06:03:54.855+0800	info	internal/resourcedetection.go:153	began detecting resource information	{"resource": {"service.instance.id": "45759da4-5a87-45a1-8d7b-adc8343f2dbc", "service.name": "otelcontribcol", "service.version": "0.144.0-dev"}, "otelcol.component.id": "resourcedetection", "otelcol.component.kind": "processor", "otelcol.pipeline.id": "metrics", "otelcol.signal": "metrics"}
2026-01-26T06:03:55.091+0800	info	internal/resourcedetection.go:210	detected resource information	{"resource": {"service.instance.id": "45759da4-5a87-45a1-8d7b-adc8343f2dbc", "service.name": "otelcontribcol", "service.version": "0.144.0-dev"}, "otelcol.component.id": "resourcedetection", "otelcol.component.kind": "processor", "otelcol.pipeline.id": "metrics", "otelcol.signal": "metrics", "resource": {"cloud.account.id":"5768869373965708","cloud.availability_zone":"eu-west-1b","cloud.platform":"alibaba_cloud_ecs","cloud.provider":"alibaba_cloud","cloud.region":"eu-west-1","host.id":"i-d7oj6nt7vwbj6nq04cu2","host.image.id":"ubuntu_24_04_x64_20G_alibase_20251226.vhd","host.name":"otel-test","host.type":"ecs.t5-lc1m1.small"}}
2026-01-26T06:03:55.091+0800	info	[email protected]/service.go:262	Everything is ready. Begin running and processing data.	{"resource": {"service.instance.id": "45759da4-5a87-45a1-8d7b-adc8343f2dbc", "service.name": "otelcontribcol", "service.version": "0.144.0-dev"}}
2026-01-26T06:03:56.092+0800	info	Metrics	{"resource": {"service.instance.id": "45759da4-5a87-45a1-8d7b-adc8343f2dbc", "service.name": "otelcontribcol", "service.version": "0.144.0-dev"}, "otelcol.component.id": "debug", "otelcol.component.kind": "exporter", "otelcol.signal": "metrics", "resource metrics": 1, "metrics": 1, "data points": 8}
2026-01-26T06:03:56.092+0800	info	ResourceMetrics #0
Resource SchemaURL: https://opentelemetry.io/schemas/1.9.0
Resource attributes:
     -> cloud.provider: Str(alibaba_cloud)
     -> cloud.platform: Str(alibaba_cloud_ecs)
     -> cloud.account.id: Str(5768869373965708)
     -> cloud.region: Str(eu-west-1)
     -> cloud.availability_zone: Str(eu-west-1b)
     -> host.id: Str(i-d7oj6nt7vwbj6nq04cu2)
     -> host.name: Str(otel-test)
     -> host.image.id: Str(ubuntu_24_04_x64_20G_alibase_20251226.vhd)
     -> host.type: Str(ecs.t5-lc1m1.small)

Documentation

Updated the README.md with this new detector.

[paulojmdias]

/rerun

[dashpole]

Do we have conventions for alibaba_cloud and alibaba_cloud_ecs already?

[paulojmdias]

Do we have conventions for alibaba_cloud and alibaba_cloud_ecs already?

Yes, I'm calling the conventions on the code also.

• https://github.com/open-telemetry/semantic-conventions/blob/main/model/cloud/registry.yaml#L15-L18
• https://github.com/open-telemetry/semantic-conventions/blob/main/model/cloud/registry.yaml#L126-L129

[paulojmdias]

/rerun

[paulojmdias]

/rerun

[paulojmdias]

@dashpole @iblancasa Can I get your review here, please? 🙏