Proxy to expose HA-setup

nginx-homeassistant-proxy.conf

map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      close;
}

server {
    server_name your.server.com;

    # These shouldn't need to be changed
    listen [::]:80 default_server ipv6only=off;
    return 301 https://$host$request_uri;
}

server {
    listen 443 ssl;
    listen [::]:443 default_server ssl http2 ipv6only=on;

    server_name your.server.com;

    ssl_certificate	    path/to/fullchain.pem; # managed by Certbot
    ssl_certificate_key path/to/privkey.pem; # managed by Certbot
    include 		        path/to/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam 	      path/to/ssl-dhparams.pem; # managed by Certbot
    add_header Strict-Transport-Security "max-age=31536000; includeSubdomains";

    access_log            /var/log/nginx/haproxy.access.log;

    proxy_buffering off;

    location / {
        proxy_pass http://127.0.0.1:8123;
        proxy_set_header Host $host;
        proxy_redirect http:// https://;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
}