Hi again,
I reverted the whole docker-compose setup and tried the manual standard setup approach.
I setup the letsencrypt stuff, so the invalid certificate problem is gone.
Nevertheless I can still not make the home.mydomain.com part work 
I tried several configuration examples from openhab-cloud/etc at main · openhab/openhab-cloud · GitHub
I get the web GUI to work, but not the proxy part…
Atm. I have again just a white browser window when I access home.mydomain.com.
That’s the same status which I had using the docker-compose setup.
It’s so frustrating 
My current nginx config is like this:
server {
listen *:443;
listen *:80;
ssl on;
ssl_certificate /etc/letsencrypt/live/mydomain.com/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/mydomain.comprivkey.pem;
server_name openhab.mydomain.com home.mydomain.com;
if ( $scheme = "http" ) {
rewrite ^/(.*)$ https://$host/$1 permanent;
}
charset utf-8;
access_log /var/log/nginx/openhab-cloud.org-access.log;
error_log /var/log/nginx/openhab-cloud.org-error.log;
client_max_body_size 300m;
location /css {
alias /home/ubuntu/openhab-cloud/public/css;
}
location /js {
alias /home/ubuntu/openhab-cloud/public/js;
}
location /img {
alias /home/ubuntu/openhab-cloud/public/img;
}
location /bootstrap {
alias /home/ubuntu/openhab-cloud/public/bootstrap;
}
location /font-icons {
alias /home/ubuntu/openhab-cloud/public/font-icons;
}
location /fonts {
alias /home/ubuntu/openhab-cloud/public/fonts;
}
location /js-plugin {
alias /home/ubuntu/openhab-cloud/public/js-plugin;
}
location /downloads {
alias /home/ubuntu/openhab-cloud/public/downloads;
}
location / {
proxy_pass http://localhost:3000;
proxy_redirect off;
proxy_http_version 1.1;
proxy_set_header Host $host;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_set_header X-Real-IP $remote_addr ;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for ;
proxy_set_header X-Forwarded-Proto https;
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
My current app config.json is like that:
{
"system": {
"host": "openhab.mydomain.com",
"proxyHost": "home.mydomain.com",
"port": "443",
"protocol": "https",
"logger" : {
"dir": "./logs",
"maxFiles" : "7d",
"level" : "debug",
"morganOption" : null
},
"subDomainCookies": false,
"muteNotifications": false
},
"express":{
"key" : "some express key"
},
"gcm" : {
"jid": "something@gcm.googleapis.com",
"password": "password"
},
"ifttt" : {
"iftttChannelKey" : "key",
"iftttTestToken" : "token"
},
"mail": {
"host" : "smtp",
"port" : 465,
"user" : "foo@bar.com",
"pass" : "password"
},
"mongodb": {
"hosts": ["127.0.0.1"],
"db": "openhab"
},
"redis": {
"host": "127.0.0.1",
"port": "6379"
},
"mailer": {
"host" : "smtp",
"port": 465,
"secureConnection": true,
"user": "foo@bar.com",
"password": "password",
"from": "openHAB Cloud <your@email.address>"
},
"legal": {
"terms" : "",
"policy": ""
},
"registration_enabled": false
}
When I login to the web UI and then switch to home.mydomain.com it loads quiet a before it returns
404 Not Found
nginx/1.18.0 (Ubuntu)
The error log shows
2022/01/06 14:08:08 [error] 32454#32454: *379 upstream timed out (110: Connection timed out) while reading response header from upstream, client: 84.113.20.35, server: openhab.mydomain.com, request: “GET /precache-manifest.924bfe288ff05ea1e57b36bc13ea7c47.js HTTP/1.1”, upstream: “http://127.0.0.1:3000/precache-manifest.924bfe288ff05ea1e57b36bc13ea7c47.js”, host: “home.mydomain.com”
2022/01/06 14:08:08 [error] 32454#32454: *379 open() “/usr/share/nginx/html/50x.html” failed (2: No such file or directory), client: 84.113.20.35, server: openhab.mydomain.com, request: “GET /precache-manifest.924bfe288ff05ea1e57b36bc13ea7c47.js HTTP/1.1”, upstream: “http://127.0.0.1:3000/precache-manifest.924bfe288ff05ea1e57b36bc13ea7c47.js”, host: “home.mydomain.com”
2022/01/06 14:08:08 [error] 32454#32454: *381 upstream timed out (110: Connection timed out) while reading response header from upstream, client: 84.113.20.35, server: openhab.mydomain.com, request: “GET /service-worker.js HTTP/1.1”, upstream: “http://127.0.0.1:3000/service-worker.js”, host: “home.mydomain.com”
2022/01/06 14:08:08 [error] 32454#32454: *381 open() “/usr/share/nginx/html/50x.html” failed (2: No such file or directory), client: 84.113.20.35, server: openhab.mydomain.com, request: “GET /service-worker.js HTTP/1.1”, upstream: “http://127.0.0.1:3000/service-worker.js”, host: “home.mydomain.com”
2022/01/06 14:08:09 [error] 32454#32454: *384 upstream timed out (110: Connection timed out) while reading response header from upstream, client: 84.113.20.35, server: openhab.mydomain.com, request: “GET / HTTP/1.1”, upstream: “http://127.0.0.1:3000/”, host: “home.mydomain.com”
2022/01/06 14:08:09 [error] 32454#32454: *384 open() “/usr/share/nginx/html/50x.html” failed (2: No such file or directory), client: 84.113.20.35, server: openhab.mydomain.com, request: “GET / HTTP/1.1”, upstream: “http://127.0.0.1:3000/”, host: “home.mydomain.com”
Any help is highly appreciated.
