How to configure custom environment variables and OTEL_RESOURCE_ATTRIBUTES using the operator

You can configure custom OTEL_RESOURCE_ATTRIBUTES for your auth, ledger, and gateway services using the Formance operator through Settings configuration.

Configuration

To set custom environment variables via OTEL_RESOURCE_ATTRIBUTES, create a Settings resource with the following configuration:

apiVersion: formance.com/v1beta1
kind: Settings
metadata:
  name: opentelemetry-resource-attributes
spec:
  key: opentelemetry.*.resource-attributes
  stacks:
    - '*'
  value: key1=value1,key2=value2

Key Configuration Options

The key field supports flexible targeting:

• Use wildcard * to apply to all OpenTelemetry components: opentelemetry.*.resource-attributes

• Target specific components by replacing * with traces or metrics

The stacks field can be set to ['*'] to apply the configuration to all stacks, or specify particular stack names.

In the value field, provide your custom resource attributes as comma-separated key-value pairs.

For more detailed configuration options, refer to the Settings configuration reference.