apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: mongodb
  labels:
    app.kubernetes.io/component: mongodb
spec:
  serviceName: mongodb
  selector:
    matchLabels:
      app.kubernetes.io/component: mongodb
  replicas: 1
  template:
    metadata:
      labels:
        app.kubernetes.io/component: mongodb
    spec:
      containers:
        - name: mongodb
          image: mongo:4.4.18 # NOTE: this is the last version with raspberry pi 4 support
          ports:
            - name: mongodb
              containerPort: 27017
          resources:
            requests:
              cpu: 500m
              memory: 500Mi
            limits:
              cpu: 500m
              memory: 500Mi
          volumeMounts:
            - name: mongodb-pvc
              mountPath: /data/db
  volumeClaimTemplates:
    - metadata:
        name: mongodb-pvc
      spec:
        accessModes:
          - ReadWriteOnce
        resources:
          requests:
            storage: 5Gi
---
apiVersion: v1
kind: Service
metadata:
  name: mongodb
  labels:
    app.kubernetes.io/component: mongodb
spec:
  selector:
    app.kubernetes.io/component: mongodb
  ports:
    - name: mongodb
      port: 27017
      targetPort: mongodb