browsertrix/chart/templates/frontend.yaml
Ilya Kreymer c1817cbe04
add horizontal pod autoscaler for backend and frontend via helm charts (#1633)
Supports horizontal pod autoscaling (hpa) for backend and frontend pods:
- use cpu and memory averages
- adjust base memory + cpu for backend
- threshold set to 80% cpu and 95% memory utilization by default
(configurable in values.yaml)
- instead of backend and frontend replicas, set max replicas in
values.yaml
- only enable hpa if backend_max_replicas or frontend_max_replicas is
>1, default to 1 for now
2024-03-28 16:39:27 -07:00

142 lines
3.2 KiB
YAML

---
apiVersion: apps/v1
kind: Deployment
metadata:
name: {{ .Values.name }}-frontend
namespace: {{ .Release.Namespace }}
spec:
selector:
matchLabels:
app: {{ .Values.name }}
role: frontend
{{- if eq (int .Values.frontend_max_replicas) 1 }}
replicas: 1
{{- end }}
template:
metadata:
labels:
app: {{ .Values.name }}
role: frontend
annotations:
# force helm to update the deployment each time
{{- if not .Values.backend_only }}
"helm.update": {{ randAlphaNum 5 | quote }}
{{- end }}
spec:
{{- if .Values.main_node_type }}
nodeSelector:
nodeType: {{ .Values.main_node_type }}
{{- end }}
containers:
- name: nginx
image: {{ .Values.frontend_image }}
imagePullPolicy: {{ .Values.frontend_pull_policy }}
env:
- name: BACKEND_HOST
value: {{ .Values.name }}-backend
- name: CRAWLER_FQDN_SUFFIX
value: ".{{ .Values.crawler_namespace }}.svc.cluster.local"
- name: NGINX_ENTRYPOINT_WORKER_PROCESSES_AUTOTUNE
value: "1"
- name: RWP_BASE_URL
value: {{ .Values.rwp_base_url }}
{{- if .Values.minio_local }}
- name: LOCAL_MINIO_HOST
value: "{{ .Values.minio_host }}"
- name: LOCAL_BUCKET
value: "{{ .Values.minio_local_bucket_name }}"
{{- end }}
resources:
limits:
memory: {{ .Values.frontend_memory }}
requests:
cpu: {{ .Values.frontend_cpu }}
memory: {{ .Values.frontend_memory }}
readinessProbe:
httpGet:
path: /healthz
port: 8880
failureThreshold: 3
initialDelaySeconds: 10
periodSeconds: 10
successThreshold: 1
timeoutSeconds: 1
---
apiVersion: v1
kind: Service
metadata:
namespace: {{ .Release.Namespace }}
name: {{ .Values.name }}-frontend
labels:
app: {{ .Values.name }}
role: frontend
{{- if .Values.service }}
{{- if .Values.service.annotations }}
annotations:
{{- range $key, $val := .Values.service.annotations }}
{{ $key }}: {{ $val | quote }}
{{- end }}
{{- end }}
{{- end }}
spec:
selector:
app: {{ .Values.name }}
role: frontend
ports:
- protocol: TCP
port: 80
name: frontend
{{- if and .Values.local_service_port (not .Values.ingress.host) }}
nodePort: {{ .Values.local_service_port }}
type: NodePort
{{- end }}
{{- if gt (int .Values.frontend_max_replicas) 1 }}
---
apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
name: frontend-autoscaler
spec:
scaleTargetRef:
apiVersion: apps/v1
kind: Deployment
name: {{ .Values.name }}-frontend
minReplicas: 1
maxReplicas: {{ .Values.frontend_max_replicas }}
metrics:
- type: Resource
resource:
name: cpu
target:
type: Utilization
averageUtilization: {{ .Values.frontend_avg_cpu_threshold }}
- type: Resource
resource:
name: memory
target:
type: Utilization
averageUtilization: {{ .Values.frontend_avg_memory_threshold }}
{{ end }}