Fix: rename AURA_USER_ID

Rename the AURA_USER_ID variable to PIPEWIRE_USER_ID to reflect the intention of this variable. This needs to be the uid of the user running the pipewire server. #64

README.md

@@ -180,6 +180,21 @@ Voilá, you should hear some music!
 
 When running engine-core with docker compose you need a different configuration file to start with. Have a look at `config/sample.engine-core.docker.ini` and copy it to `config/engine-core.ini` (FIXME: this uses the overwrite in /etc/aura/ and is not the best of options). Do not change the paths here, rather change them in `sample.env` and copy this file to `.env`. Make sure the directories in `.env` are read and writable for the user used in the container, mainly `aura(2872:2872)`.
 
+It is important to set the `PIPEWIRE_USER_ID` to the uid of the user running pipewire. To check which user is running the pipewire server run the following:
+
+```bash
+ps -fp $(pgrep -d, -x pipewire)
+
+# UID          PID    PPID  C STIME TTY          TIME CMD
+# loxbie      2034    2025  0 09:19 ?        00:00:00 /usr/bin/pipewire
+```
+
+```bash
+id -u loxbie
+
+# 1000
+```
+
 You can now build the container with
 
 ```bash

docker-compose.yaml

@@ -61,7 +61,7 @@ services:
       AURA_ENGINE_STREAM_OUTPUT_GENRE: ${AURA_ENGINE_STREAM_OUTPUT_GENRE}
     volumes:
       # this needs to be the path of the user running pipewire, most likely the current user
-      - /run/user/${AURA_USER_ID}/pipewire-0:/tmp/pipewire-0
+      - /run/user/${PIPEWIRE_USER_ID}/pipewire-0:/tmp/pipewire-0
       - ${AURA_AUDIO_STORE_SOURCE}:/var/audio/source
       - ${AURA_AUDIO_STORE_PLAYLIST}:/var/audio/playlist
       - ${AURA_AUDIO_STORE_FALLBACK}:/var/audio/fallback

sample.env

@@ -5,8 +5,10 @@
 # Timezone
 TIMEZONE=Europe/Vienna
 # Folder to store service log files
-AURA_LOGS=logs
-AURA_USER_ID=2872
+AURA_LOGS=./logs
+
+# The user id under which the pipewire server is running
+PIPEWIRE_USER_ID=1000
 
 ### AUDIO STORE