exim-docker/examples/deploy.yml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: smtp
  namespace: system
  labels:
    app: smtp
  annotations:
    secret.reloader.stakater.com/reload: smtp-secrets
spec:
  replicas: 1
  selector:
    matchLabels:
      app: smtp
  template:
    metadata:
      labels:
        app: smtp
    spec:
      containers:
        - name: smtp
          image: quay.io/wollud1969/exim-docker:0.3.2
          envFrom:
            - secretRef:
                name: smtp-secrets
          ports:
            - containerPort: 25
              protocol: TCP
---
apiVersion: v1
kind: Service
metadata:
  name: smtp
  namespace: system
spec:
  type: ClusterIP
  selector:
    app: smtp
  ports:
    - name: smtp
      protocol: TCP
      port: 25
      targetPort: 25