Connection refused

Era erro na escrita do YAML.

apiVersion: v1
kind: Service
metadata:
  name: db
spec:
  type: ClusterIP
  ports:
    - port: 3306
  selector:
    app: mysql-statefulset
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: statefulset-mysql
  labels:
    app: mysql-statefulset
spec:
  serviceName: db
  selector:
    matchLabels:
      app: mysql-statefulset
  template:
    metadata:
      labels:
        app: mysql-statefulset
    spec:
      containers:
        - name: container-mysql
          image: mysql:5.7.19
          ports:
            - containerPort: 3306
          env:
            - name: MYSQL_DATABASE
              value: "loja"
            - name: MYSQL_USER
              value: "root"
            - name: MYSQL_ALLOW_EMPTY_PASSWORD
              value: "1"
          volumeMounts:
            - name: volume-mysql
              mountPath: /var/lib/mysql
      volumes:
        - name: volume-mysql
          persistentVolumeClaim:
            claimName: configuracao-mysql
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: configuracao-mysql
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 3Gi