Change Home Assistant NGINX SSL Proxy Listening Port

nginx_proxy_default.conf

# /share/nginx_proxy_default.conf
# Blank.

port55555.conf

# /share/nginx/port55555.conf
# We can't override the port, so we create a new server listening
# on port 55555. Then, change the pass throug port in the add-on configuration.
# Change the Customize "active" field to true.
#
# It appears that template evaluation works on this conf file,
# recursively.
#
# https://github.com/home-assistant/addons/blob/master/nginx_proxy/rootfs/etc/nginx/nginx.conf.gtpl

    server {
        server_name {{ .options.domain }};

        ssl_session_timeout 1d;
        ssl_session_cache shared:MozSSL:10m;
        ssl_session_tickets off;
        ssl_certificate /ssl/{{ .options.certfile }};
        ssl_certificate_key /ssl/{{ .options.keyfile }};

        # dhparams file
        ssl_dhparam /data/dhparams.pem;
        
        {{- if not .options.real_ip_from  }}
        listen 55555 ssl;
        http2 on;
        {{- else }}
        listen 55555 ssl proxy_protocol;
        http2 on;
        {{- range .options.real_ip_from }}
        set_real_ip_from {{.}};
        {{- end  }}
        real_ip_header proxy_protocol;
        {{- end }}

        {{- if .options.hsts }}
        add_header Strict-Transport-Security "{{ .options.hsts }}" always;
        {{- end }}

        proxy_buffering off;

        {{- if .options.customize.active }}
        include /share/{{ .options.customize.default }};
        {{- end }}
        
        location / {
            proxy_pass http://homeassistant.local.hass.io:{{ .variables.port }};
            proxy_set_header Host $http_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-Forwarded-Host $http_host;
            {{- if not .options.real_ip_from }}
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            {{- else }}
            proxy_set_header X-Real-IP $proxy_protocol_addr;
            proxy_set_header X-Forwarded-For $proxy_protocol_addr;
            {{- end }}
        }
    }