seguem os arquivos ajustados e testados no minikube linux:

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: configuracao-mysql
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 3Gi

apiVersion: apps/v1
kind: Deployment
metadata:
  name: aplicacao-deployment
spec:
  selector:
    matchLabels:
      app: aplicacao-pod
  template:
    metadata:
      labels:
        app: aplicacao-pod
    spec:
      containers:
      - name: container-aplicacao-loja
        image: rafanercessian/aplicacao-loja:v1
        ports:
        - containerPort: 80

apiVersion: v1
kind: Service
metadata:
  name: servico-aplicacao
spec:
  type: LoadBalancer
  ports:
  - port: 80
    targetPort: 80  # Certifique-se que corresponde ao containerPort
  selector:
    app: aplicacao-pod
  externalTrafficPolicy: Local

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: statefulset-mysql
spec:
  serviceName: db
  selector:
    matchLabels:
      app: mysql
  template:
    metadata:
      labels:
        app: mysql
    spec:
      containers:
      - name: container-mysql
        image: mysql:5.5
        ports:
        - containerPort: 3306
        env:
        - name: MYSQL_DATABASE
          value: "loja"
        - name: MYSQL_USER
          value: "admin"
        - name: MYSQL_ALLOW_EMPTY_PASSWORD
          value: "true"
        volumeMounts:
        - name: volume-mysql
          mountPath: /var/lib/mysql
      volumes:
      - name: volume-mysql
        persistentVolumeClaim:
          claimName: configuracao-mysql

apiVersion: v1
kind: Service
metadata:
  name: db
spec:
  type: ClusterIP
  ports:
    - port: 3306
  selector:
    name: mysql