Minikube – From inside of a Docker container, how do I connect to the localhost of the container?

I created a container that has apache, php, and mysql on it.

---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: apachephp7mysql8
  name: apachephp7mysql8
spec:
  replicas: 1
  selector:
    matchLabels:
      app: apachephp7mysql8
      tier: frontend
  template:
    metadata:
      labels:
        app: apachephp7mysql8
        tier: frontend
    spec:
      containers:
      - image: apachephp7mysql8:latest
        name: apachephp7mysql8
        ports:
        - containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: apachephp7mysql8
  namespace: default
  labels:
    app: apachephp7mysql8
spec:
  type: NodePort
  ports:
    - port: 80
      name: http
      targetPort: 80
      protocol: TCP
  selector:
    app: apachephp7mysql8
---
apiVersion: v1
kind: Service
metadata:
  name: apachephp7mysql8
  namespace: kube-system
spec:
  type: ExternalName
  externalName: apachephp7mysql8.default.svc.cluster.local
---
apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
  name: apachephp7mysql8
  namespace: kube-system
spec:
  rules:
    - host: apachephp7mysql8.test
      http:
        paths:
          - path: /
            backend:
              serviceName: apachephp7mysql8
              servicePort: 80

Inside my container I try to connect to mysql via localhost. This no longer works once I deploy my app to minikube.

How can I connect to the container's localhost?

*I am aware this is not the best design however it is specific to this app.

Read more here: https://stackoverflow.com/questions/65044497/minikube-from-inside-of-a-docker-container-how-do-i-connect-to-the-localhost