Update README.md

README.md

@@ -6,9 +6,27 @@ This is an exporter that exposes information gathered from Jellyfin for use by t
 
 Requires Python 3.9 or better.
 
+## Using docker
+
+```
+docker pull git.hipstercat.fr/hipstercat/jellyfin-exporter:main
+```
+
+Example: Display usage message:
+
+```
+docker run -it --rm git.hipstercat.fr/hipstercat/jellyfin-exporter:main --help
+```
+
+Example: Run the image with a mounted configuration file and published port:
+```
+docker run --init --name prometheus-jellyfin-exporter -d -p 127.0.0.1:9222:9222 -v /path/to/pve.yml:/etc/pve.yml git.hipstercat.fr/hipstercat/jellyfin-exporter:main
+```
+Prometheus Jellyfin Exporter will now be reachable at http://localhost:9222/.
+
 ## Usage
 
-Visit http://localhost:9221/jellyfin?target=1.2.3.4 where 1.2.3.4
+Visit http://localhost:9222/jellyfin?target=1.2.3.4 where 1.2.3.4
 is the IP of the Jellyfin server to get metrics from. Specify the `module`
 request parameter, to choose which module to use from the config file.
 
@@ -40,7 +58,7 @@ scrape_configs:
 - job_name: 'jellyfin'
  static_configs:
    - targets:
-     - 192.168.1.2:9221  # Jellyfin server with Jellyfin exporter.
+     - 192.168.1.2:9222  # Jellyfin server with Jellyfin exporter.
  metrics_path: /jellyfin
  params:
    module: [default]
@@ -63,5 +81,5 @@ scrape_configs:
       - source_labels: [__param_target]
         target_label: instance
       - target_label: __address__
-        replacement: 127.0.0.1:9221  # Jellyfin exporter.
+        replacement: 127.0.0.1:9222  # Jellyfin exporter.
 ```