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Install Grafana Behind reverse proxy

If the installation is done on a Host server then the following steps should be performed to setup grafana behind a reverse proxy.
Installation steps
1.To let Grafana know how to render and redirect the links correctly, in the Grafana configuration file, change server.domain to the domain name that will be used,
[server]
domain = example.com
2. Restart grafana to see the changes
3. To serve grafana behind the sub path, such as http://example.com/grafana​
Include the sub path at the end of the root_url.
Set serve_from_sub_path to true.
[server]
domain = example.com
root_url = %(protocol)s://%(domain)s:%(http_port)s/grafana/
serve_from_sub_path = true
4. Next step is to configure NGINX.
Configure NGINX
NGINX is a high performance load balancer, web server, and reverse proxy.
In the NGINX configuration file inside http section, add the following:
// this is required for proxy Grafana Live WebSocket connections.
map $http_upgrade $connection_upgrade {
  default upgrade;
  '' close;
}
​
upstream grafana {
  server localhost:3000;
}
​
server {
  listen 80;
  root /usr/share/nginx/html;
  index index.html index.htm;
​
  location / {
    proxy_set_header Host $http_host;
    proxy_pass http://grafana;
  }
​
  # Proxy Grafana Live WebSocket connections.
  location /api/live/ {
    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;
  }
}
Reload the NGINX configuration
Navigate to port 80 on the machine NGINX is running on and the Grafana login page will appear.
For Grafana Live which uses WebSocket connections, raise a Nginx worker_connections option which is 512 by default – which limits the number of possible concurrent connections with Grafana Live.
Also, be aware that the above configuration will work only when the proxy_pass value for location / is a literal string. If you are using a variable here, read this GitHub issue and there will be a need to add an appropriate NGINX rewrite rule.
To configure NGINX to serve Grafana under a sub path, update the location block:
// this is required to proxy Grafana Live WebSocket connections.
map $http_upgrade $connection_upgrade {
  default upgrade;
  '' close;
}
​
upstream grafana {
  server localhost:3000;
}
​
server {
  listen 80;
  root /usr/share/nginx/www;
  index index.html index.htm;
​
  location /grafana/ {
    rewrite  ^/grafana/(.*)  /$1 break;
    proxy_set_header Host $http_host; 
    proxy_pass http://grafana;
  }
​
  # Proxy Grafana Live WebSocket connections.
  location /grafana/api/live/ {
    rewrite  ^/grafana/(.*)  /$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;
  }
}
Configure HAProxy
To configure HAProxy to serve Grafana under a sub path:
frontend http-in
  bind *:80
  use_backend grafana_backend if { path /grafana } or { path_beg /grafana/ }
​
backend grafana_backend
  # Requires haproxy >= 1.6
  http-request set-path %[path,regsub(^/grafana/?,/)]
​
  # Works for haproxy < 1.6
  # reqrep ^([^\ ]*\ /)grafana[/]?(.*) \1\2
​
  server grafana localhost:3000
Configure IIS
IIS requires that the URL Rewrite module is installed.
To configure IIS to serve Grafana under a sub path, create an Inbound Rule for the parent website in IIS Manager with the following settings:
pattern: grafana(/)?(.*)
check the Ignore case checkbox
rewrite URL set to http://localhost:3000/{R:2}
check the Append query string checkbox
check the Stop processing of subsequent rules checkbox
This is the rewrite rule that is generated in the web.config:
  <rewrite>
      <rules>
          <rule name="Grafana" enabled="true" stopProcessing="true">
              <match url="grafana(/)?(.*)" />
              <action type="Rewrite" url="http://localhost:3000/{R:2}" logRewrittenUrl="false" />
          </rule>
      </rules>
  </rewrite>
Check the tutorial on IIS URL Rewrites for more in-depth instructions.
Configure Traefik
​Traefik Cloud Native Reverse Proxy / Load Balancer / Edge Router
Using the docker provider the following labels will configure the router and service for a domain or subdomain routing.
  labels:
      traefik.http.routers.grafana.rule: Host(`grafana.example.com`)
      traefik.http.services.grafana.loadbalancer.server.port: 3000
To deploy a subpath
  labels:
      traefik.http.routers.grafana.rule: Host(`example.com`) && PathPrefix(`/grafana`)
      traefik.http.services.grafana.loadbalancer.server.port: 3000
Examples using the file provider,
http:
  routers:
    grafana:
      rule: Host(`grafana.example.com`)
      service: grafana
  services:
    grafana:
      loadBalancer:
        servers:
          - url: http://192.168.30.10:3000
http:
  routers:
    grafana:
      rule: Host(`example.com`) && PathPrefix(`/grafana`)
      service: grafana
  services:
    grafana:
      loadBalancer:
        servers:
          - url: http://192.168.30.10:3000
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Last modified 1yr ago