fix(micrometer): publish artifact + document okapi.metrics.refresh-interval

README.md

@@ -114,6 +114,12 @@ With Spring Boot Actuator and a Prometheus registry (`micrometer-registry-promet
 | `okapi.entries.count` | Gauge | Current entry count (tag: `status=pending\|delivered\|failed`) |
 | `okapi.entries.lag.seconds` | Gauge | Age of oldest entry in seconds (tag: `status`) |
 
+### Configuration
+
+| Property | Default | Description |
+|----------|---------|-------------|
+| `okapi.metrics.refresh-interval` | `PT15S` (15s) | How often gauge metrics poll the outbox store. Each refresh runs one transaction with two queries. |
+
 ### Multi-instance deployments
 
 Counters and timers (`okapi.entries.delivered`, `okapi.entries.retry.scheduled`, `okapi.entries.failed`, `okapi.batch.duration`) report work performed by **each instance** — aggregate with `sum`:

okapi-micrometer/build.gradle.kts

@@ -1,5 +1,6 @@
 plugins {
     id("buildsrc.convention.kotlin-jvm")
+    id("buildsrc.convention.publish")
 }
 
 dependencies {

okapi-spring-boot/src/main/kotlin/com/softwaremill/okapi/springboot/OkapiMetricsProperties.kt

@@ -3,6 +3,13 @@ package com.softwaremill.okapi.springboot
 import org.springframework.boot.context.properties.ConfigurationProperties
 import java.time.Duration
 
+/**
+ * Configuration for Okapi Micrometer metrics.
+ *
+ * @property refreshInterval How often gauge metrics (`okapi.entries.count`, `okapi.entries.lag.seconds`)
+ *   are refreshed from the outbox store. Each refresh runs one transaction with two queries.
+ *   Set under property `okapi.metrics.refresh-interval`, e.g. `PT15S`, `30s`, `1m`. Default: 15 seconds.
+ */
 @ConfigurationProperties(prefix = "okapi.metrics")
 data class OkapiMetricsProperties(
     val refreshInterval: Duration = Duration.ofSeconds(15),

okapi-spring-boot/src/main/resources/META-INF/spring-configuration-metadata.json

@@ -14,6 +14,11 @@
       "name": "okapi.processor",
       "type": "com.softwaremill.okapi.springboot.OutboxProcessorProperties",
       "description": "Outbox processor configuration."
+    },
+    {
+      "name": "okapi.metrics",
+      "type": "com.softwaremill.okapi.springboot.OkapiMetricsProperties",
+      "description": "Okapi Micrometer metrics configuration (okapi-micrometer module)."
     }
   ],
   "properties": [
@@ -70,6 +75,12 @@
       "type": "java.lang.String",
       "defaultValue": null,
       "description": "Name of the DataSource bean to use for the outbox. When set, okapi uses this specific DataSource instead of the primary one. Required in multi-datasource setups where the outbox table is not in the primary database."
+    },
+    {
+      "name": "okapi.metrics.refresh-interval",
+      "type": "java.time.Duration",
+      "defaultValue": "15s",
+      "description": "How often gauge metrics (okapi.entries.count, okapi.entries.lag.seconds) are refreshed from the outbox store. Each refresh runs one transaction with two queries. Requires okapi-micrometer on the classpath."
     }
   ]
 }