Grafana stopped working after small change "If you're seeing this Grafana has failed to load its application files"

[thomaskohlweiss]

Hello all

What Grafana version and what operating system are you using?

8.x

• What are you trying to achieve?

I would like to modify the Login Page

• How are you trying to achieve it?

I modified one single file: /usr/share/grafana/public/build/app.90343abf47ce928781e5.js

i added 2 Letters. After Grafana stopped working i changed it back to original content

• What happened?

after touching the file Grafana stopped working. Now the Login page state following:

If you’re seeing this Grafana has failed to load its application files**

1. This could be caused by your reverse proxy settings.

…

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

I did not change any configuration

Is there any way how I can get Grafana back without uninstall?

I appreciate your help!

Br

Thomas

[amotl]

Dear Thomas,

maybe the newlines in this file got mangled by e.g. editing it from a Windows machine or something like that? You could easily try to extract this file from the original package you have been installing Grafana from, right?

With kind regards,
Andreas.

[thomaskohlweiss]

i completely uninstalled and re installed Grafana to get it up and running.
I modified the file on a Windows machine. I will try it one more time and edit it on a Linux.
Will keep you updated. I didn’t thought to exchange a text & picture is that hard ….

[kohleit]

Ups - i Did it again
Conclusio: Do not change with WinSCP!
If you modefy the file with MC Grafana continue to work
Thx for hint!

[cgfoed]

Not sure if im correct in this thread, but hopefully somebody could help me?
I was tasked to add an url to our grafana server and I just can’t get it to work.
I also slightly edited the .js file for the login-page but I highly doubt that this is my problem.
Sadly I’m very new to nginx and this URL-stuff in general.

Im getting the same error-message when I open my URL, It only works by including the port.
so:
http:// mynewdomain. de:3000 << works
http:// xx.xxx.xx.xxx:3000 << (static IPv4) works
http:// mynewdomain. de << gets me the above mentioned error message
http:// xx.xxx.xx.xxx << (static IPv4) gets me the above mentioned error message

Grafana v8.2.4 (d409b0ca16) OSS running on a Linux VPS, installed via

sudo apt-get install

(following Install Grafana on Debian or Ubuntu | Grafana documentation)

My config files now look like this after followed https://grafana.com/tutorials/run-grafana-behind-a-proxy/:

nginx.conf

#user  nginx;
#worker_processes  1;

#error_log  /var/log/nginx/error.log;
#error_log  /var/log/nginx/error.log  notice;
#error_log  /var/log/nginx/error.log  info;

#pid        /var/run/nginx.pid;

#include /etc/nginx/modules.conf.d/*.conf;

events {
    worker_connections  1024;
}



http{
# this section is from https://grafana.com/tutorials/run-grafana-behind-a-proxy/

	map $http_upgrade $connection_upgrade {
	  default upgrade;
	  '' close;
	}
	server {
	  listen 80;
	  root /usr/share/nginx/html;
	  index index.html index.htm;

	  location / {
	    proxy_set_header Host $http_host;
	    proxy_pass http://grafana.staged-by-discourse.com/;
	  }

	  # Proxy Grafana Live WebSocket connections.
	  location /api/live {
	    rewrite  ^/(.*)  /$1 break;
	    proxy_http_version 1.1;
	    proxy_set_header Upgrade $http_upgrade;
	    proxy_set_header Connection $connection_upgrade;
	    proxy_set_header Host $http_host;
	    proxy_pass http://grafana.staged-by-discourse.com/;
	  }
	}
}

and grafana.ini:

#################################### 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  o use
http_port = 3000

# The public facing domain name used to access grafana from a browser
domain = mynewdomain.de

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

# The full public facing url you use in browser, used for redirects and emails
# If you use reverse proxy and sub path specify full url (with sub path)
root_url = %(protocol)s://%(domain)s:%(http_port)s/

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

# Log web requests
;router_logging = false

# the path relative working path
;static_root_path = public

# enable gzip
;enable_gzip = false

# https certs & key file  (SSL TODO!)
;cert_file = /etc/grafana/grafana.key
;cert_key = /etc/grafana/grafana.key

# Unix socket path
;socket =

This is what the console says about the errors, I just cant explain myself why it does that. All the .js files are reachable when I just open for example http://mynewdomain.de/public/build/runtime.e5180647aa9f27ba6de7.js