A bare example of a Deployment, Service and Ingress on Kubernetes

full-k8s-deployment-with-ingress.yml

---
apiVersion: v1
kind: Service
metadata:
  labels:
    kubernetes.io/name: "fun-apache"
  name: "fun-apache-svc"
  namespace: "{{ namespace }}"
spec:
  type: LoadBalancer # NodePort might work for your lab as well. 
  # If you are using the Ingress below the type should be ClusterIP
  ports:
  - port: 80 # DO NOT USE 80 IF YOU ALREADY HAVE https://kubernetes.github.io/ingress-nginx/deploy
    targetPort: 8080
    name: http
  selector:
    k8s-app: "fun-apache"

---

apiVersion: apps/v1
kind: Deployment
metadata:
  name: "fun-apache"
  namespace: "{{ namespace }}"
spec:
  selector:
    matchLabels:
      k8s-app: "fun-apache"
  replicas: 1
  template: # template for Pod
    metadata:
      labels:
        k8s-app: "fun-apache"
    spec:
      containers:
      - name: "fun-apache"
        image: apache2:1.2.3

---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: fun-apache-ingress
  namespace: "{{ namespace }}"
spec:
  rules:
  - host: "yourhost"
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: "fun-apache-svc"
            port: 
              number: 80 # Not your pod port, use the k8s Service.Port