debug: add verbose logging and error checks to setup_data_dir

entrypoint.sh

@@ -19,13 +19,24 @@ PRIMARY_TAGS='["navidrome","web","traefik.enable=true","urlprefix-/navidrome","t
 # Ensure Navidrome's data directory exists and has the database symlinked to LiteFS
 setup_data_dir() {
   echo "Setting up Navidrome data directory..."
-  mkdir -p /data
+  
+  # Ensure /data exists (should be a volume mount)
+  if [ ! -d "/data" ]; then
+    echo "Creating /data directory..."
+    mkdir -p /data || { echo "ERROR: Failed to create /data"; exit 1; }
+  fi
+
+  # Check if we can write to /data
+  touch /data/.write_test && rm /data/.write_test || { echo "ERROR: /data is not writable!"; exit 1; }
+
   # Symlink the database and its sidecar files to the LiteFS mount.
-  # This ensures SQLite writes go through LiteFS while Navidrome can still
-  # create subdirectories (like /data/artwork) on the persistent host volume.
-  ln -sf /litefs/navidrome.db /data/navidrome.db
-  ln -sf /litefs/navidrome.db-wal /data/navidrome.db-wal
-  ln -sf /litefs/navidrome.db-shm /data/navidrome.db-shm
+  # We use -f to overwrite any existing files.
+  echo "Creating symlinks to LiteFS..."
+  ln -sf /litefs/navidrome.db /data/navidrome.db || echo "Warning: Failed to symlink navidrome.db"
+  ln -sf /litefs/navidrome.db-wal /data/navidrome.db-wal || echo "Warning: Failed to symlink navidrome.db-wal"
+  ln -sf /litefs/navidrome.db-shm /data/navidrome.db-shm || echo "Warning: Failed to symlink navidrome.db-shm"
+  
+  echo "Data directory setup complete."
 }
 
 # Backup Database (Only on Primary)