Sample
go.opentelemetry.io/otel v1.45.0: resource.Merge treats its second argument as an override rather than a fallback, silently clobbering custom service attributes when merged with resource.Default(), and errors on conflicting non-empty schema URLs
Verified sample for golang go.opentelemetry.io/otel v1.45.0: resource.Merge treats its second argument as an override rather than a fallback, silently…
sha256:14dd434489e1359c9763ff1d4b367d176e5e60de805649a7f09831dc5b572bc2
This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured.
How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 2
- Signing keys that built it
- 2
Declared environment
go linux x64 go go gomod
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| go 1.26 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-16 |
| go 1.26 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-18 |
Case
HOW- Goal
- resource.Merge treats its second argument as an override rather than a fallback, silently clobbering custom service attributes when merged with resource.Default(), and errors on conflicting non-empty schema URLs
- Symbols
-
- go.opentelemetry.io/otel/sdk/resource.Merge
- go.opentelemetry.io/otel/sdk/resource.Default
- go.opentelemetry.io/otel/sdk/resource.New
- go.opentelemetry.io/otel/sdk/resource.NewWithAttributes
- go.opentelemetry.io/otel/sdk/resource.WithAttributes
- go.opentelemetry.io/otel/sdk/resource.ErrSchemaURLConflict
- Environment
- go
- Created
- 2026-08-16T07:28:24Z
Contract
- assert custom resource alone does not contain default telemetry SDK attributes
- assert default resource service name defaults to unknown_service prefix
- assert resource.Merge(custom, default) inverts precedence and clobbers custom service.name with unknown_service
- assert resource.Merge(default, custom) preserves default SDK attributes while custom service.name takes precedence
- assert resource.Merge with conflicting non-empty schema URLs returns ErrSchemaURLConflict
Files
- NOTES.md
- csx.json
- go.mod
- go.sum
- resource_test.go