feat: Add otlp attribute deployment.environment.name to list of default labels (#14747)

Author: mveitas

docs/sources/send-data/otel/_index.md

@@ -79,6 +79,7 @@ Since the OpenTelemetry protocol differs from the Loki storage model, here is ho
   - cloud.region
   - container.name
   - deployment.environment
+  - deployment.environment.name
   - k8s.cluster.name
   - k8s.container.name
   - k8s.cronjob.name

docs/sources/shared/configuration.md

@@ -2264,7 +2264,7 @@ write_failures_logging:
 otlp_config:
   # List of default otlp resource attributes to be picked as index labels
   # CLI flag: -distributor.otlp.default_resource_attributes_as_index_labels
-  [default_resource_attributes_as_index_labels: <list of strings> | default = [service.name service.namespace service.instance.id deployment.environment cloud.region cloud.availability_zone k8s.cluster.name k8s.namespace.name k8s.pod.name k8s.container.name container.name k8s.replicaset.name k8s.deployment.name k8s.statefulset.name k8s.daemonset.name k8s.cronjob.name k8s.job.name]]
+  [default_resource_attributes_as_index_labels: <list of strings> | default = [service.name service.namespace service.instance.id deployment.environment deployment.environment.name cloud.region cloud.availability_zone k8s.cluster.name k8s.namespace.name k8s.pod.name k8s.container.name container.name k8s.replicaset.name k8s.deployment.name k8s.statefulset.name k8s.daemonset.name k8s.cronjob.name k8s.job.name]]
 
 # Enable writes to Kafka during Push requests.
 # CLI flag: -distributor.kafka-writes-enabled

pkg/loghttp/push/otlp_config.go

@@ -56,6 +56,7 @@ func (cfg *GlobalOTLPConfig) RegisterFlags(fs *flag.FlagSet) {
 		"service.namespace",
 		"service.instance.id",
 		"deployment.environment",
+		"deployment.environment.name",
 		"cloud.region",
 		"cloud.availability_zone",
 		"k8s.cluster.name",