From 1f43fbb2d71fc4e16e483f53b8e6edc824d99e59 Mon Sep 17 00:00:00 2001
From: Hao <HaoYang0000@users.noreply.github.com>
Date: Thu, 16 Jan 2025 00:08:10 +0800
Subject: [PATCH] Prometheus adapter custom time range (#1033)

Update Developer doc with customize interval explanation. Add example of
VerticaAutoscaler under sample.
---
 DEVELOPER.md                                  |  1 +
 ...eta1_verticaautoscaler_custom_metrics.yaml | 22 +++++++++++++++++++
 2 files changed, 23 insertions(+)
 create mode 100644 config/samples/v1beta1_verticaautoscaler_custom_metrics.yaml

diff --git a/DEVELOPER.md b/DEVELOPER.md
index e55e44a5f..4339b23c6 100644
--- a/DEVELOPER.md
+++ b/DEVELOPER.md
@@ -591,6 +591,7 @@ A Prometheus service is running and accessible through an URL.
 
 2. Configuration
    Customize the adapter configuration to map Prometheus metrics to Kubernetes metrics. For example, you can configure rules to map a Prometheus query (e.g., vertica_query_requests_attempted_total) to a Kubernetes metric.
+   To customize the interval of a query, change the interval value "5m" on the metricsQuery to the prefered time range.
 
    ```shell
    rules:
diff --git a/config/samples/v1beta1_verticaautoscaler_custom_metrics.yaml b/config/samples/v1beta1_verticaautoscaler_custom_metrics.yaml
new file mode 100644
index 000000000..ce364f45a
--- /dev/null
+++ b/config/samples/v1beta1_verticaautoscaler_custom_metrics.yaml
@@ -0,0 +1,22 @@
+apiVersion: vertica.com/v1beta1
+kind: VerticaAutoscaler
+metadata:
+  name: as-sample-custom-metrics
+spec:
+  verticaDBName: verticadb-sample
+  # The serviceName should be the name of your subcluster
+  serviceName: sc1
+  scalingGranularity: Pod
+  customAutoscalerSpec:
+    minReplicas: 3
+    maxReplicas: 10
+    metrics:    
+    - metric:
+        type: Pods
+        pods:
+          metric:
+            # The name of the mapped Kubernetes metric name
+            name: vertica_query_requests_attempted_rate_per_second
+          target:
+            type: AverageValue
+            averageValue: 20000m
\ No newline at end of file