Resource attributes for internal telemetry unable to parse numeric strings (original) (raw)

Component(s)

confmap

What happened?

Describe the bug
When a yaml key is supplied dynamically via environment variables, if an environment variable is numeric, e.g. 123, or 1234567890, it will be treated as an integer, and fails to validate to a string here.

Steps to reproduce
Use the otel config below

What did you expect to see?
OTEL is able to boot

What did you see instead?
Please see log output section

Collector version

0.135.0

Environment information

Environment

AWS ECS, but can be reproduciblbe in any environment, with any numeric string, despite being wrapped in quotes/double quotes.

OpenTelemetry Collector configuration

receivers: otlp: protocols: http: endpoint: "0.0.0.0:4318" grpc: endpoint: "0.0.0.0:4317" processors: {} exporters: debug: verbosity: "detailed" service: pipelines: logs: receivers: - otlp exporters: - debug telemetry: resource: service.name: otel-gateway service.version: 'v0.0.0' deployment.environment.name: 'test' aws.ecs.cluster.arn: '${env:AWS_ECS_CLUSTER_ARN}' aws.ecs.launchtype: '${env:AWS_ECS_LAUNCHTYPE}' aws.ecs.task.arn: '${env:AWS_ECS_TASK_ARN}' aws.ecs.task.family: '${env:AWS_ECS_TASK_FAMILY}' aws.ecs.task.id: '${env:AWS_ECS_TASK_ID}' aws.ecs.task.revision: '${env:AWS_ECS_TASK_REVISION}' cloud.account.id: '${env:CLOUD_ACCOUNT_ID}' cloud.availability_zone: '${env:CLOUD_AVAILABILITY_ZONE}' cloud.platform: '${env:CLOUD_PLATFORM}' cloud.provider: '${env:CLOUD_PROVIDER}' cloud.region: '${env:CLOUD_REGION}' metrics: readers: - periodic: exporter: otlp: protocol: http/protobuf endpoint: 'https://otel.somedomain:4318' timeout: 30000 logs: level: INFO processors: - batch: exporter: otlp: protocol: http/protobuf endpoint: 'https://otel.somedomain:4318' timeout: 30000 traces: propagators: - tracecontext - b3 processors: - batch: exporter: otlp: protocol: http/protobuf endpoint: 'https://otel.somedomain:4318' timeout: 30000

Log output

2025/10/15 12:30:58 collector server run finished with error: failed to get config: cannot unmarshal the configuration: decoding failed due to the following error(s): 'service.telemetry.resource[cloud.account.id]' expected type 'string', got unconvertible type 'int' 'service.telemetry.resource[aws.ecs.task.revision]' expected type 'string', got unconvertible type 'int'

Additional context

CLOUD_ACCOUNT_ID is in AWS account ID format e.g. 123456789012
AWS_ECS_TASK_REVISION is a numeric string, e.g. 123, 234, ...

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