[BUG] I used nginx to redirect to HTTPS, However, it's keep reloading.

[raychan907]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

I am using docker duplicati:lastest version.
and Use nginx to redirect it to HTTPS

But something is not working.
May I confirm that how can I change http to https?

Thank you very much.

Expected Behavior

No response

Steps To Reproduce

Nginx config
location ~ ^/duplicati(/.*)$ {
proxy_read_timeout 300;
proxy_connect_timeout 300;
proxy_send_timeout 300;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection 'upgrade';
proxy_pass http://127.0.0.1:8200/$1$is_args$args;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-Host $server_name;
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 $http_x_forwarded_proto;
proxy_redirect http://127.0.0.1:8200/ /duplicati/;
proxy_cookie_path / /duplicati/;
if ($scheme = https) {
set $xforwardedssl "on";
}
proxy_set_header X-Forwarded-Ssl $xforwardedssl;

Environment

Ubuntu 24.04 LTS
ARM 64 - Raspberry PI5

CPU architecture

arm64

Docker creation

---
services:
  duplicati:
    image: lscr.io/linuxserver/duplicati:latest
    container_name: duplicati
    env_file:N
      - stack.env

    volumes:
      - /opt/duplicati/config:/config
      - /opt/duplicati/backups:/backups
      - /opt/duplicati/source:/source
    ports:
      - 8200:8200
    restart: unless-stopped

Container logs

GET /notifications?token=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ0eXAiOiJBY2Nlc3NUb2tlbiIsInNpZCI6IndlYnNlcnZlciIsImZhbSI6IjVCQTk3MUZDNzczQjJE
Q0EiLCJuYmYiOjE3MzU2MDA5MjYsImV4cCI6MTczNTYwMTgyNiwiaXNzIjoiaHR0cHM6Ly9kdXBsaWNhdGkiLCJhdWQiOiJodHRwczovL2R1cGxpY2F0aSJ9.p5SafxYbId-cw-pd3m1Y6ZiJ5LxcqBXjo7QoMtPTEek HTTP/1.1" 404 555 "-" "M
ozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36" "-"

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[raychan907]

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What should I do?
Thanks

[j0nnymoe]

Can you access it normally via ip:port?

[raychan907]

Can you access it normally via ip:port?

Yes. The http is working.
I can use it and backup to Cloud.
However, I tried to use Nginx to change it to HTTPS. It will keep reload the connection.

[j0nnymoe]

Looks like your issue is trying to do subfolder reverse proxy.

[raychan907]

Looks like your issue is trying to do subfolder reverse proxy.

And I have any problem. When I login from https. it will redirect to /login.html. not /duplicati/login.html.

So That's why the my nginx config is so odd.

[j0nnymoe]

I can point you to our reverse proxy config we ship with swag: https://github.com/linuxserver/reverse-proxy-confs/blob/master/duplicati.subfolder.conf.sample but other than that, it's outside our support.

[raychan907]

I am not sure about wher is the files for
include /config/nginx/proxy.conf;
include /config/nginx/resolver.conf;

[j0nnymoe]

Their related to our reverse proxy, you can find the proxy.conf in our swag GitHub repo.

[raychan907]

/config/nginx/proxy.conf

Thanks for your help. I have one more question.
Is it possible to enable https from Duplicati? if yes. I can just enable it and no need to redirect via Nignx.

[j0nnymoe]

You would need to check their documentation.

[clement-brodu]

Hello,

see #89 (comment)

If it's like me, you should try to add these 2 WebSocket headers to your reverse proxy.

• Upgrade : $http_upgrade
• Connection : $connection_upgrade