allegro-internal/flex-roadmap#819 Migrated metrics to prometheus (lint)

envoy-control-core/src/main/kotlin/pl/allegro/tech/servicemesh/envoycontrol/utils/Metrics.kt

@@ -5,18 +5,19 @@ import io.micrometer.core.instrument.Tags
 import io.micrometer.core.instrument.noop.NoopTimer
 
 val noopTimer = NoopTimer(Meter.Id("", Tags.empty(), null, null, Meter.Type.TIMER))
-val reactorMetricName = "reactor"
-val errorsMetricName = "errors.count"
-val connectionsMetricName = "connections"
-val requestsMetricName = "requests.total"
-val connectionTypeTag = "connection-type"
-val streamTypeTag = "stream-type"
-val discoveryReqTypeTag = "discovery-request-type"
-val metricTypeTag = "metric-type"
-val metricEmitterTag = "metric-emitter"
-val snapshotStatusTag = "snapshot-status"
-val updateTriggerTag = "update-trigger"
-val serviceTag = "service"
-val operationTag = "operation"
-val clusterTag = "cluster"
-val statusTag = "status"
+const val reactorMetricName = "reactor"
+const val errorsMetricName = "errors.total"
+const val connectionsMetricName = "connections"
+const val requestsMetricName = "requests.total"
+
+const val connectionTypeTag = "connection-type"
+const val streamTypeTag = "stream-type"
+const val discoveryReqTypeTag = "discovery-request-type"
+const val metricTypeTag = "metric-type"
+const val metricEmitterTag = "metric-emitter"
+const val snapshotStatusTag = "snapshot-status"
+const val updateTriggerTag = "update-trigger"
+const val serviceTag = "service"
+const val operationTag = "operation"
+const val clusterTag = "cluster"
+const val statusTag = "status"