feat(chart/xatu-server): add hpa (ethpandaops#153)

Author: Savid

charts/xatu-server/Chart.yaml

@@ -3,7 +3,7 @@ name: xatu-server
 description: Ethereum p2p monitoring tool that collects events from and controls various Xatu clients.
 home: https://github.com/ethpandaops/xatu
 type: application
-version: 0.0.2
+version: 0.0.3
 maintainers:
   - name: samcm
     email: [email protected]

charts/xatu-server/README.md

@@ -1,7 +1,7 @@
 
 # xatu-server
 
-![Version: 0.0.2](https://img.shields.io/badge/Version-0.0.2-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square)
+![Version: 0.0.3](https://img.shields.io/badge/Version-0.0.3-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square)
 
 Ethereum p2p monitoring tool that collects events from and controls various Xatu clients.
 
@@ -14,6 +14,10 @@ Ethereum p2p monitoring tool that collects events from and controls various Xatu
 | affinity | object | `{}` | Affinity configuration for pods |
 | annotations | object | `{}` | Annotations for the Deployment |
 | args | list | `[]` | Command arguments |
+| autoscaling.enabled | bool | `false` | Autoscaling configuration |
+| autoscaling.maxReplicas | int | `3` | Maximum number of replicas |
+| autoscaling.minReplicas | int | `2` | Minimum number of replicas |
+| autoscaling.targetCPUUtilizationPercentage | int | `85` | Target CPU utilization percentage |
 | config.addr | string | `":8080"` |  |
 | config.logging | string | `"info"` |  |
 | config.metricsAddr | string | `":9090"` |  |

charts/xatu-server/templates/hpa.yaml

@@ -0,0 +1,22 @@
+{{- if .Values.autoscaling.enabled -}}
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: {{ include "xatu-server.fullname" . }}
+  labels:
+    {{- include "xatu-server.labels" . | nindent 4 }}
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ include "xatu-server.fullname" . }}
+  minReplicas: {{ .Values.autoscaling.minReplicas }}
+  maxReplicas: {{ .Values.autoscaling.maxReplicas }}
+  metrics:
+  - type: Resource
+    resource:
+      name: cpu
+      target:
+        type: Utilization
+        averageUtilization: {{ .Values.autoscaling.targetCPUUtilizationPercentage }}
+{{- end }}

charts/xatu-server/values.yaml

@@ -7,6 +7,16 @@ fullnameOverride: ""
 # -- Number of replicas
 replicas: 1
 
+autoscaling:
+  # -- Autoscaling configuration
+  enabled: false
+  # -- Minimum number of replicas
+  minReplicas: 2
+  # -- Maximum number of replicas
+  maxReplicas: 3
+  # -- Target CPU utilization percentage
+  targetCPUUtilizationPercentage: 85
+
 image:
   # -- xatu container image repository
   repository: ethpandaops/xatu