don't fail if uid/gid exists

docker-entrypoint.sh

@@ -5,30 +5,24 @@ set -e
 PUID="${PUID:-1000}"
 PGID="${PGID:-1000}"
 
-# Create group if it doesn't exist
-if ! getent group sbv >/dev/null 2>&1; then
+# Use existing group if the GID is already taken, otherwise create one
+if ! getent group "${PGID}" >/dev/null 2>&1; then
     addgroup -g "${PGID}" sbv
 fi
+SBV_GROUP="$(getent group "${PGID}" | cut -d: -f1)"
 
-# Create user if it doesn't exist
-if ! getent passwd sbv >/dev/null 2>&1; then
-    adduser -D -u "${PUID}" -G sbv sbv
-fi
-
-# Ensure the user has the correct UID/GID
-if [ "$(id -u sbv)" != "${PUID}" ] || [ "$(id -g sbv)" != "${PGID}" ]; then
-    deluser sbv >/dev/null 2>&1 || true
-    delgroup sbv >/dev/null 2>&1 || true
-    addgroup -g "${PGID}" sbv
-    adduser -D -u "${PUID}" -G sbv sbv
+# Use existing user if the UID is already taken, otherwise create one
+if ! getent passwd "${PUID}" >/dev/null 2>&1; then
+    adduser -D -u "${PUID}" -G "${SBV_GROUP}" sbv
 fi
+SBV_USER="$(getent passwd "${PUID}" | cut -d: -f1)"
 
 # Ensure data directory exists and has correct permissions
 mkdir -p "${DB_PATH_PREFIX:-/data}"
-chown -R sbv:sbv "${DB_PATH_PREFIX:-/data}"
+chown -R "${SBV_USER}:${SBV_GROUP}" "${DB_PATH_PREFIX:-/data}"
 
 # Log the user we're running as
-echo "Running as UID=${PUID} GID=${PGID}"
+echo "Running as UID=${PUID} GID=${PGID} (${SBV_USER}:${SBV_GROUP})"
 
 # Switch to the sbv user and execute the application
-exec su-exec sbv "$@"
+exec su-exec "${SBV_USER}" "$@"