add custom metric

k8s/app.yaml

@@ -16,7 +16,8 @@ spec:
         - name: fastapi-app-container
           image: igit.danilkolesnikov.ru/danil/playground_app
           ports:
-            - containerPort: 8000
+            - name: web
+              containerPort: 8000
 
 ---
 apiVersion: v1
@@ -30,3 +31,14 @@ spec:
     - protocol: TCP
       port: 8000
       targetPort: 8000
+---
+apiVersion: monitoring.coreos.com/v1
+kind: PodMonitor
+metadata:
+  name: fastapi-app-pod-monitor
+spec:
+  selector:
+    matchLabels:
+      app: fastapi-app
+  podMetricsEndpoints:
+    - port: web