Test UDP and TCP Connection in Kubernetes

deployment.tcp.yaml

## TCP Connection
apiVersion: v1
kind: Service
metadata:
  name: nginx-service
  namespace: monitoring
spec:
  type: ClusterIP
  selector:
    app: nginx
  ports:
  - port: 8125
    targetPort: 80 
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  labels:
    app: nginx
  namespace: monitoring
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:latest
        ports:
        - containerPort: 80

deployment.udp.yaml

## UDP Connection
# Reference: https://hub.docker.com/r/cilium/echoserver-udp
apiVersion: v1
kind: Service
metadata:
  name: echoserver-udp-service
  namespace: monitoring
spec:
  type: ClusterIP
  selector:
    app: echoserver-udp
  ports:
  - port: 8125
    targetPort: 8125
    protocol: UDP
    name: echoserver-udp
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: echoserver-udp
  namespace: monitoring
  labels:
    app: echoserver-udp
spec:
  replicas: 1
  selector:
    matchLabels:
      app: echoserver-udp
  template:
    metadata:
      labels:
        app: echoserver-udp
    spec:
      containers:
      - name: echoserver-udp
        image: quay.io/cilium/echoserver-udp
        command: ["echoserver-tftp"]
        args: ["-listen", ":8125"]
        ports:
        - containerPort: 8125
          protocol: UDP
          name: echoserver-udp