apiVersion: v1
kind: Service
metadata:
  name: homeassistant
  labels:
    app: homeassistant
spec:
  selector:
    app: homeassistant
  type: ClusterIP
  clusterIP: None
  ports:
  - name: http-port
    port: 8123
    targetPort: 8123
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: homeassistant-proxy
spec:
  replicas: 1
  selector:
    matchLabels:
      app: homeassistant
  template:
    metadata:
      labels:
        app: homeassistant
    spec:
      containers:
        - name: nginx
          image: nginx
          ports:
            - name: http-port
              containerPort: 8123
          volumeMounts:
            - name: config-volume
              mountPath: /etc/nginx/nginx.conf
              subPath: nginx.conf
      volumes:
        - name: config-volume
          configMap:
            name: homeassistant-proxy-nginx-conf
            items:
              - key: nginx.conf
                path: nginx.conf
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: homeassistant-proxy-nginx-conf
  namespace: default
data:
  nginx.conf: |
   worker_processes  auto;
   events {
       worker_connections  2048;
   }
   http {
     map $http_upgrade $connection_upgrade {
       default upgrade;
       ''      close;
     }
     server {
       error_log  stdout;
       access_log stdout;

       listen 8123;
       listen [::]:8123;
       proxy_buffering off;
       location / {
         proxy_pass http://172.30.32.1:8123;
         proxy_set_header Upgrade $http_upgrade;
         proxy_set_header Connection $connection_upgrade;
       }
     }
   }