Raise puppetserver compiler requests to match real usage (#524)

Compiler pods average ~2Gi memory but request 1Gi, so the scheduler overpacks nodes and the HPA's utilisation target is skewed.

- raise compiler requests to 1 cpu / 2Gi and limits to 4 cpu / 4Gi
- scale up faster (30s window, 75%) and down slower (600s window)

Reviewed-on: #524
Co-authored-by: unkin-agent <unkin-agent@unkin.net>
Co-committed-by: unkin-agent <unkin-agent@unkin.net>

apps/base/puppet/deployment_puppetserver-compiler.yaml

@@ -32,11 +32,11 @@ spec:
         imagePullPolicy: IfNotPresent
         resources:
           limits:
-            cpu: 2
+            cpu: 4
-            memory: 3072Mi
+            memory: 4096Mi
           requests:
-            cpu: 200m
+            cpu: 1
-            memory: 1024Mi
+            memory: 2048Mi
         ports:
         - containerPort: 8140
           name: puppetserver

apps/base/puppet/horizontalpodautoscaler_puppetserver-compilers-autoscaler.yaml

@@ -24,13 +24,13 @@ spec:
     type: Resource
   behavior:
     scaleUp:
-      stabilizationWindowSeconds: 60
+      stabilizationWindowSeconds: 30
       policies:
       - type: Percent
-        value: 50
+        value: 75
         periodSeconds: 15
     scaleDown:
-      stabilizationWindowSeconds: 300
+      stabilizationWindowSeconds: 600
       policies:
       - type: Percent
         value: 25