Refactors backend deployment to: - Use MOTOR_MAX_WORKERS (defaulting to 1) to reduce threads used by mongodb connections - Also sets backend workers to 1 by default to reduce default memory usage - Switches to gunicorn with uvloop worker for production use instead of uvicorn (as recommended by uvicorn) Lower thread count should address memory leak/increased usage, which resulted in 5x thread x cpus x workers, eg. potentially 20 or 40 threads just for mongodb connections. Lower default number of workers should make it easier to scale backend with HPA if additional capacity. Fixes #1467
236 lines
5.7 KiB
YAML
236 lines
5.7 KiB
YAML
---
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: {{ .Values.name }}-backend
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namespace: {{ .Release.Namespace }}
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spec:
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selector:
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matchLabels:
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app: {{ .Values.name }}
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role: backend
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replicas: {{ .Values.backend_num_replicas }}
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template:
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metadata:
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labels:
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app: {{ .Values.name }}
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role: backend
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annotations:
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# force helm to update the deployment each time
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{{- if not .Values.frontend_only }}
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"helm.update": {{ randAlphaNum 5 | quote }}
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{{- end }}
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spec:
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{{- if .Values.main_node_type }}
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nodeSelector:
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nodeType: {{ .Values.main_node_type }}
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{{- end }}
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volumes:
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- name: config-volume
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configMap:
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name: shared-job-config
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items:
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- key: config.yaml
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path: config.yaml
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- name: ops-configs
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secret:
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secretName: ops-configs
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- name: app-templates
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configMap:
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name: app-templates
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- name: email-templates
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configMap:
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name: email-templates
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containers:
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- name: api
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image: {{ .Values.backend_image }}
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imagePullPolicy: {{ .Values.backend_pull_policy }}
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command:
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- gunicorn
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- btrixcloud.main:app_root
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- --bind
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- "0.0.0.0:8000"
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- --access-logfile
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- "-"
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- --workers
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- "{{ .Values.backend_workers | default 1 }}"
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- --worker-class
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- uvicorn.workers.UvicornWorker
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envFrom:
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- configMapRef:
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name: backend-env-config
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- secretRef:
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name: backend-auth
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- secretRef:
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name: mongo-auth
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env:
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- name: MOTOR_MAX_WORKERS
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value: "{{ .Values.backend_mongodb_workers | default 1 }}"
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volumeMounts:
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- name: ops-configs
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mountPath: /ops-configs/
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- name: app-templates
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mountPath: /app/btrixcloud/templates/
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- name: email-templates
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mountPath: /app/btrixcloud/email-templates/
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resources:
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limits:
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memory: {{ .Values.backend_memory }}
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requests:
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cpu: {{ .Values.backend_cpu }}
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memory: {{ .Values.backend_memory }}
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startupProbe:
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httpGet:
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path: /healthz
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port: 8000
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initialDelaySeconds: 5
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periodSeconds: 5
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failureThreshold: 30
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successThreshold: 1
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readinessProbe:
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httpGet:
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path: /healthz
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port: 8000
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initialDelaySeconds: 5
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periodSeconds: 30
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failureThreshold: 5
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successThreshold: 1
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livenessProbe:
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httpGet:
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path: /healthz
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port: 8000
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initialDelaySeconds: 5
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periodSeconds: 30
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failureThreshold: 5
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successThreshold: 1
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- name: op
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image: {{ .Values.backend_image }}
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imagePullPolicy: {{ .Values.backend_pull_policy }}
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command:
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- gunicorn
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- btrixcloud.main_op:app_root
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- --bind
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- "0.0.0.0:{{ .Values.opPort }}"
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- --access-logfile
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- "-"
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- --workers
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- "{{ .Values.backend_workers | default 1 }}"
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- --worker-class
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- uvicorn.workers.UvicornWorker
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envFrom:
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- configMapRef:
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name: backend-env-config
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- secretRef:
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name: backend-auth
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- secretRef:
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name: mongo-auth
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env:
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- name: MOTOR_MAX_WORKERS
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value: "{{ .Values.backend_mongodb_workers | default 1 }}"
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volumeMounts:
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- name: config-volume
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mountPath: /config
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- name: ops-configs
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mountPath: /ops-configs/
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- name: app-templates
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mountPath: /app/btrixcloud/templates/
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- name: email-templates
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mountPath: /app/btrixcloud/email-templates/
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resources:
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limits:
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memory: {{ .Values.backend_memory }}
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requests:
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cpu: {{ .Values.backend_cpu }}
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memory: {{ .Values.backend_memory }}
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startupProbe:
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httpGet:
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path: /healthz
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port: {{ .Values.opPort }}
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initialDelaySeconds: 5
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periodSeconds: 5
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failureThreshold: 30
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successThreshold: 1
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readinessProbe:
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httpGet:
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path: /healthz
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port: {{ .Values.opPort }}
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initialDelaySeconds: 5
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periodSeconds: 30
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failureThreshold: 5
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successThreshold: 1
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livenessProbe:
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httpGet:
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path: /healthz
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port: {{ .Values.opPort }}
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initialDelaySeconds: 5
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periodSeconds: 30
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failureThreshold: 5
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successThreshold: 1
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---
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apiVersion: v1
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kind: Service
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metadata:
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namespace: {{ .Release.Namespace }}
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name: {{ .Values.name }}-backend
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labels:
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app: {{ .Values.name }}
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role: backend
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{{- if .Values.service }}
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{{- if .Values.service.annotations }}
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annotations:
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{{- range $key, $val := .Values.service.annotations }}
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{{ $key }}: {{ $val | quote }}
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{{- end }}
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{{- end }}
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{{- end }}
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spec:
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selector:
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app: {{ .Values.name }}
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role: backend
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ports:
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- protocol: TCP
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port: 8000
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name: api
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- protocol: TCP
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port: {{ .Values.opPort }}
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name: operator
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