Problems self hosting

Support
1

Operating system

Linux

Joplin version

3.5.2

Desktop version info

NA

Sync target

Joplin Server

Editor

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What issue do you have?

This is an issue with hosting joplin on premise
I am runing podman on debian 13

my quadlet is
[Unit]
Description=Joplin Server Container
After=network.target postgresql.service

[Service]
Restart=always
RestartSec=10

Ensures any hanging container from a previous failed start is cleared

ExecStartPre=-/usr/bin/podman rm -f joplin-server

--pull=missing: Stops the service from re-downloading the image on every start

--net=host: Required for your LXC environment to communicate with local Postgres

ExecStart=/usr/bin/podman run --name joplin-server
--net=host
--pull=missing
-e APP_PORT='2230'
-e APP_BASE_URL=':///joplin'
-e API_BASE_URL=':///joplin'
-e ALLOWED_ORIGINS='://'
-e SAML_ENABLED='true'
-e SAML_IDP_METADATA_URL='/application/saml/joplin/metadata/'
-e SAML_ENTITY_ID='joplin'
-e DELETE_EXPIRED_SESSIONS_SCHEDULE=''
-e DB_CLIENT='pg'
-e POSTGRES_PASSWORD='j'
-e POSTGRES_DATABASE='j'
-e POSTGRES_USER='j'
-e POSTGRES_HOST='localhost'
docker.io/joplin/server:latest

ExecStop=/usr/bin/podman stop joplin-server

[Install]
WantedBy=multi-user.target

NOTE - the urls are h t t p s : //www.s.com/ As newbe i can only post 2 urls

my nginx config
location /joplin/ {
proxy_pass h t t p ://joplin.s.com:2230/;

This seems to be working fine, except the saml login button goes to /login/sso-saml
it should be /joplin/sso-saml
but when i go to /joplin/sso-saml it gives me an error diretory not found

Also from my observations i notice that even if i set the APP url to include a path I have to strip that path in nginx

2 
Mar 18 05:46:27 joplin joplin-server[84095]: 05:46:27 1|app  | 2026-03-18 05:46:27: App: ::ffff:192.168.11.31: GET /login/sso-saml (500) (1ms)

Mar 18 05:46:27 joplin podman[84084]: 05:46:27 1|app  | 2026-03-18 05:46:27: App: ::ffff:192.168.11.31: GET /login/sso-saml (500) (1ms)

Mar 18 05:46:27 joplin podman[84084]: 05:46:27 1|app  | 2026-03-18 05:46:27: [error] App: ::ffff:192.168.11.31: [Error: ENOENT: no such file or directory, open ''] {

Mar 18 05:46:27 joplin podman[84084]: 05:46:27 1|app  |   errno: -2,

Mar 18 05:46:27 joplin podman[84084]: 05:46:27 1|app  |   code: 'ENOENT',

Mar 18 05:46:27 joplin podman[84084]: 05:46:27 1|app  |   syscall: 'open',

Mar 18 05:46:27 joplin podman[84084]: 05:46:27 1|app  |   path: ''

Mar 18 05:46:27 joplin podman[84084]: 05:46:27 1|app  | }

Mar 18 05:46:27 joplin joplin-server[84095]: 05:46:27 1|app  | 2026-03-18 05:46:27: [error] App: ::ffff:192.168.11.31: [Error: ENOENT: no such file or directory, open ''] {

Mar 18 05:46:27 joplin joplin-server[84095]: 05:46:27 1|app  |   errno: -2,

Mar 18 05:46:27 joplin joplin-server[84095]: 05:46:27 1|app  |   code: 'ENOENT',

Mar 18 05:46:27 joplin joplin-server[84095]: 05:46:27 1|app  |   syscall: 'open',

Mar 18 05:46:27 joplin joplin-server[84095]: 05:46:27 1|app  |   path: ''

Mar 18 05:46:27 joplin joplin-server[84095]: 05:46:27 1|app  | }

Mar 18 05:46:27 joplin joplin-server[84095]: 05:46:27 1|app  | 2026-03-18 05:46:27: App: ::ffff:192.168.11.31: GET /css/bulma.min.css (200) (3ms)

Mar 18 05:46:27 joplin podman[84084]: 05:46:27 1|app  | 2026-03-18 05:46:27: App: ::ffff:192.168.11.31: GET /css/bulma.min.css (200) (3ms)

Mar 18 05:46:27 joplin joplin-server[84095]: 05:46:27 1|app  | 2026-03-18 05:46:27: App: ::ffff:192.168.11.31: GET /css/fontawesome/css/all.min.css (200) (22ms)

Mar 18 05:46:27 joplin podman[84084]: 05:46:27 1|app  | 2026-03-18 05:46:27: App: ::ffff:192.168.11.31: GET /css/fontawesome/css/all.min.css (200) (22ms)

Mar 18 05:46:27 joplin podman[84084]: 05:46:27 1|app  | 2026-03-18 05:46:27: App: ::ffff:192.168.11.31: GET /js/jquery.min.js (200) (22ms)

Mar 18 05:46:27 joplin podman[84084]: 05:46:27 1|app  | 2026-03-18 05:46:27: App: ::ffff:192.168.11.31: GET /css/main.css (200) (23ms)

Mar 18 05:46:27 joplin podman[84084]: 05:46:27 1|app  | 2026-03-18 05:46:27: App: ::ffff:192.168.11.31: GET /js/main.js (200) (22ms)
3

I have got a bit further seems like the ENV variables i used where wrong - went back to the files one

so its linking into authentik this time

but still the issue with the button on the login page its not use the baseurl that is configured

so instead of

https://something/joplin/login/sso-saml it goes to h t t p s : //something/login/sso-saml