browsertrix/chart/templates/backend.yaml

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{ .Values.name }}-backend
  namespace: {{ .Release.Namespace }}

spec:
  selector:
    matchLabels:
      app: {{ .Values.name }}
      role: backend
{{- if eq (int .Values.backend_max_replicas) 1 }}
  replicas: 1
{{- end }}
  template:
    metadata:
      labels:
        app: {{ .Values.name }}
        role: backend

      annotations:
        # force helm to update the deployment each time
        {{- if not .Values.frontend_only }}
        "helm.update": {{ randAlphaNum 5 | quote }}
        {{- end }}

    spec:
      {{- if .Values.main_node_type }}
      nodeSelector:
        nodeType: {{ .Values.main_node_type }}
      {{- end }}

      volumes:
        - name: config-volume
          configMap:
            name: shared-job-config
            items:
              - key: config.yaml
                path: config.yaml

        - name: ops-configs
          secret:
            secretName: ops-configs

        - name: app-templates
          configMap:
            name: app-templates

        - name: email-templates
          configMap:
            name: email-templates

      containers:
        - name: api
          image: {{ .Values.backend_image }}
          imagePullPolicy: {{ .Values.backend_pull_policy }}
          command:
              - gunicorn
              - btrixcloud.main:app_root
              - --bind
              - "0.0.0.0:8000"
              - --access-logfile
              - "-"
              - --workers
              - "{{ .Values.backend_workers | default 1 }}"
              - --worker-class
              - uvicorn.workers.UvicornWorker

          envFrom:
            - configMapRef:
                name: backend-env-config
            - secretRef:
                name: backend-auth
            - secretRef:
                name: mongo-auth

          env:
            - name: MOTOR_MAX_WORKERS
              value: "{{ .Values.backend_mongodb_workers | default 1 }}"

          volumeMounts:
            - name: ops-configs
              mountPath: /ops-configs/

            - name: app-templates
              mountPath: /app/btrixcloud/templates/

            - name: email-templates
              mountPath: /app/btrixcloud/email-templates/

          resources:
            limits:
              memory: {{ .Values.backend_memory }}

            requests:
              cpu: {{ .Values.backend_cpu }}
              memory: {{ .Values.backend_memory }}

          startupProbe:
            httpGet:
              path: /healthzStartup
              port: 8000
            periodSeconds: 5
            failureThreshold: 60
            successThreshold: 1

          readinessProbe:
            httpGet:
              path: /healthz
              port: 8000
            initialDelaySeconds: 5
            periodSeconds: 30
            failureThreshold: 5
            successThreshold: 1

          livenessProbe:
            httpGet:
              path: /healthz
              port: 8000
            initialDelaySeconds: 5
            periodSeconds: 30
            failureThreshold: 15
            successThreshold: 1

        - name: op
          image: {{ .Values.backend_image }}
          imagePullPolicy: {{ .Values.backend_pull_policy }}
          command:
              - gunicorn
              - btrixcloud.main_op:app_root
              - --bind
              - "0.0.0.0:{{ .Values.opPort }}"
              - --access-logfile
              - "-"
              - --workers
              - "{{ .Values.backend_workers | default 1 }}"
              - --worker-class
              - uvicorn.workers.UvicornWorker

          envFrom:
            - configMapRef:
                name: backend-env-config
            - secretRef:
                name: backend-auth
            - secretRef:
                name: mongo-auth

          env:
            - name: MOTOR_MAX_WORKERS
              value: "{{ .Values.backend_mongodb_workers | default 1 }}"

          volumeMounts:
            - name: config-volume
              mountPath: /config

            - name: ops-configs
              mountPath: /ops-configs/

            - name: app-templates
              mountPath: /app/btrixcloud/templates/

            - name: email-templates
              mountPath: /app/btrixcloud/email-templates/

          resources:
            limits:
              memory: {{ .Values.backend_memory }}

            requests:
              cpu: {{ .Values.backend_cpu }}
              memory: {{ .Values.backend_memory }}

          startupProbe:
            httpGet:
              path: /healthz
              port: {{ .Values.opPort }}
            initialDelaySeconds: 5
            periodSeconds: 5
            failureThreshold: 5
            successThreshold: 1

          readinessProbe:
            httpGet:
              path: /healthz
              port: {{ .Values.opPort }}
            initialDelaySeconds: 5
            periodSeconds: 30
            failureThreshold: 5
            successThreshold: 1

          livenessProbe:
            httpGet:
              path: /healthz
              port: {{ .Values.opPort }}
            initialDelaySeconds: 5
            periodSeconds: 30
            failureThreshold: 15
            successThreshold: 1



---

apiVersion: v1
kind: Service

metadata:
  namespace: {{ .Release.Namespace }}
  name: {{ .Values.name }}-backend
  labels:
    app: {{ .Values.name }}
    role: backend

{{- 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: backend

  ports:
    - protocol: TCP
      port: 8000
      name: api

    - protocol: TCP
      port: {{ .Values.opPort }}
      name: operator

{{- if gt (int .Values.backend_max_replicas) 1 }}
---
apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
  name: backend-autoscaler
spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: {{ .Values.name }}-backend
  minReplicas: 1
  maxReplicas: {{ .Values.backend_max_replicas }}
  metrics:
  - type: Resource
    resource:
      name: cpu
      target:
        type: Utilization
        averageUtilization: {{ .Values.backend_avg_cpu_threshold }}
  - type: Resource
    resource:
      name: memory
      target:
        type: Utilization
        averageUtilization: {{ .Values.backend_avg_memory_threshold }}
{{- end }}