docs: update prod setup

docs/developer/cicd_runner.md

@@ -7,6 +7,12 @@
 - `sls-vserv-bd-hla01(-dev)`
     - Runs everything else
 
+## Install the runner
+
+```
+sudo dnf install act-runner
+```
+
 ## Setup
 
 Resources:
@@ -19,9 +25,12 @@ Register the runner: (by default the name is the machine name `sls-vserv-bd-hla0
 sudo su svcusr-sls2hla
 mkdir ~/gitea-runner
 cd ~/gitea-runner
-/usr/local/bin/act_runner register --instance https://gitea.psi.ch/ --labels hla-dev --token <token> --no-interactive
+/usr/local/bin/act_runner generate-config | sudo tee /etc/act_runner/config.yaml > /dev/null
+/usr/local/bin/act_runner --config /etc/act_runner/config.yaml register --instance https://gitea.psi.ch/ --labels <labels> --token <token> --no-interactive
 ```
 
+where we used `hla-dev` or `hla-prod` for the labels.
+
 Note, if you use a systemd service with a config file as in the example below, 
 the labels will be read from that file.
 
@@ -138,7 +147,7 @@ Configure the runner labels: (edit `/etc/act_runner/config.yaml`)
 ```
 runner:
   labels:
-    - "hla-dev"
+    - "hla-dev"  # or "hla-prod"
 ```
 
 Enable and restart: