mailu/docs/kubernetes/kubernetes-nginx-ingress-controller.yaml

---
kind: ConfigMap
apiVersion: v1
metadata:
  name: nginx-configuration
  namespace: ingress-nginx
  labels:
    app: ingress-nginx

---
kind: ConfigMap
apiVersion: v1
metadata:
  name: udp-services
  namespace: ingress-nginx

---
kind: ConfigMap
apiVersion: v1
metadata:
  name: tcp-services
  namespace: ingress-nginx
data:
  25: "mailu/smtp:25"
  465: "mailu/smtp:465"
  587: "mailu/smtp:587"
  143: "mailu/imap:143"
  993: "mailu/imap:993"

---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: nginx-ingress-controller
  namespace: kube-system
  labels:
    k8s-app: nginx-ingress-controller
spec:
  replicas: 1
  template:
    metadata:
      labels:
        k8s-app: nginx-ingress-controller
      annotations:
        prometheus.io/port: '10254'
        prometheus.io/scrape: 'true'
    spec:
      # hostNetwork makes it possible to use ipv6 and to preserve the source IP correctly regardless of docker configuration
      # however, it is not a hard dependency of the nginx-ingress-controller itself and it may cause issues if port 10254 already is taken on the host
      # that said, since hostPort is broken on CNI (https://github.com/kubernetes/kubernetes/issues/31307) we have to use hostNetwork where CNI is used
      # like with kubeadm
      # hostNetwork: true
      terminationGracePeriodSeconds: 60
      containers:
      - image: gcr.io/google_containers/nginx-ingress-controller:0.11.0
        name: nginx-ingress-controller
        args:
          - /nginx-ingress-controller
          - --default-backend-service=$(POD_NAMESPACE)/default-http-backend
          - --configmap=$(POD_NAMESPACE)/nginx-configuration
          - --tcp-services-configmap=$(POD_NAMESPACE)/tcp-services
          - --udp-services-configmap=$(POD_NAMESPACE)/udp-services
          - --annotations-prefix=nginx.ingress.kubernetes.io
        readinessProbe:
          httpGet:
            path: /healthz
            port: 10254
            scheme: HTTP
        livenessProbe:
          httpGet:
            path: /healthz
            port: 10254
            scheme: HTTP
          initialDelaySeconds: 10
          timeoutSeconds: 1
        env:
          - name: POD_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.name
          - name: POD_NAMESPACE
            valueFrom:
              fieldRef:
                fieldPath: metadata.namespace