Error not enough arguments in call to tr.ResourceToSource

[purple4reina]

Problem

Recently we have been seeing the following error when building lambda functions which require datadog-lambda-go

# github.com/DataDog/datadog-agent/pkg/trace/traceutil
../../../../../../pkg/mod/github.com/!data!dog/datadog-agent/pkg/[email protected]/traceutil/otel_util.go:413:46: not enough arguments in call to tr.ResourceToSource
	have (context.Context, pcommon.Resource, "go.opentelemetry.io/otel/attribute".Set)
	want (context.Context, pcommon.Resource, "go.opentelemetry.io/otel/attribute".Set, "github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/attributes".HostFromAttributesHandler)

Cause

The error is due to a package version mismatch between github.com/DataDog/datadog-agent/pkg/trace and github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/attributes. The latest version of the latter package changed the signature of an exported method.

Solution

Downgrade github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/attributes to v0.24.0. This will ensure the correct signature for the exported method is found.

Specifically, if you have this in your go.mod file

    github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/attributes v0.25.0 // indirect

Change it to

    github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/attributes v0.24.0 // indirect

Then run go mod tidy and reattempt to build your package.

[purple4reina]

Relevant datadog-agent PR: DataDog/datadog-agent#33370