Grafana URL inserted two times in URL address

Grafana Configuration
1

  • What Grafana version and what operating system are you using?

    • Grafana 13.0.1 on a Docker container in Ubuntu 24.04.4 LTS

  • What are you trying to achieve?

  • How are you trying to achieve it?

    • SERVER DOMAIN, SERVER ROOT, and SERVER FROM SUB_PATH are configured as an environment variables:

  • What happened?

  • What did you expect to happen?

  • Can you copy/paste the configuration(s) that you are having problems with?

    • My Grafana.ini is has NO other configurations apart from the env variables shown before, but I am attaching the relevant parts. Also attaching the GF variables file.
    • This error appears with or without a Reverse Proxy. I am currently testing WITHOUT a proxy.
    • Grafana.ini
    ##################### Grafana Configuration Defaults 

#################################### Server ##############################
[server]
# Protocol (http, https, h2, socket)
;protocol = http

# The ip address to bind to, empty will bind to all interfaces
;http_addr =

# The http port to use
;http_port = 3000

# The public facing domain name used to access grafana from a browser
#domain = testserver.diedo.local

# Redirect to correct domain if host header does not match domain
# Prevents DNS rebinding attacks
;enforce_domain = false

# The full public facing url
;root_url = %(protocol)s://%(domain)s/grafana

# Serve Grafana from subpath specified in `root_url` setting. By default it is set to `false` for compatibility reasons.
;serve_from_sub_path = true

# Log web requests
;router_logging = false

# the path relative working path
;static_root_path = public

# enable gzip
;enable_gzip = false

# https certs & key file
#cert_file = /etc/grafana/cert.cer
#cert_key = /etc/grafana/private.key

# Unix socket gid
# Changing the gid of a file without privileges requires that the target group is in the group of the process and that the process is the file owner
# It is recommended to set the gid as http server user gid
# Not set when the value is -1
;socket_gid = -1

# Unix socket mode
;socket_mode = 0660

# Unix socket path
;socket = /tmp/grafana.sock

# CDN Url
;cdn_url =

# Sets the maximum time in minutes before timing out read of an incoming request and closing idle connections.
# `0` means there is no timeout for reading the request.
;read_timeout = 0

# This setting enables you to specify additional headers that the server adds to HTTP(S) responses.
[server.custom_response_headers]
#exampleHeader1 = exampleValue1
#exampleHeader2 = exampleValue2

  • Did you receive any errors in the Grafana UI or in related logs? If so, please tell us exactly what they were.

    • No logs in grafana

  • Did you follow any online instructions? If so, what is the URL?

2

please try this
Trailing slash add
GF_SERVER_ROOT_URL=http://testserver.diedo.loc:3000/grafana/
GF_SERVER_SERVE_FROM_SUB_PATH=true
and then restart the grafana service.
also clear the browser cache.

3

Thank you for your reply @infofcc3 . I tested your suggestion:

image
image963×125 6.05 KB

Restarted Grafana, cleared up the browser cache, but behavior is the same. When I enter the URL and press enter:

image

I adds the host part to the URL:

image
image1629×749 47.9 KB

4

This was a configuration error on my grafana.ini.Closing.