Tidy up docker file and entrypoint

Dockerfile

@@ -25,9 +25,9 @@ RUN --mount=type=cache,target=/root/.cache/uv \
     uv sync --locked --no-install-project
 
 # Copy and install app
-COPY --chown=app:app migrations /home/app/spoolman/migrations
-COPY --chown=app:app spoolman /home/app/spoolman/spoolman
-COPY --chown=app:app alembic.ini README.md uv.lock pyproject.toml /home/app/spoolman/
+COPY migrations /home/app/spoolman/migrations
+COPY spoolman /home/app/spoolman/spoolman
+COPY alembic.ini README.md uv.lock pyproject.toml /home/app/spoolman/
 RUN --mount=type=cache,target=/root/.cache/uv \
     uv sync --locked
 
@@ -45,7 +45,6 @@ RUN apt-get update && apt-get install -y \
 
 # Add local user so we don't run as root
 RUN useradd -u 1000 -U app \
-    && usermod -G users app \
     && mkdir -p /home/app/.local/share/spoolman \
     && chown -R app:app /home/app/.local/share/spoolman
 

entrypoint.sh

@@ -21,7 +21,8 @@ if [ "$(id -g app)" -ne "$PGID" ]; then
 fi
 
 if [ "$(id -u)" -eq 0 ]; then
-    exec gosu "app" uvicorn spoolman.main:app --host $SPOOLMAN_HOST --port $SPOOLMAN_PORT "$@"
-else
-    exec uvicorn spoolman.main:app --host $SPOOLMAN_HOST --port $SPOOLMAN_PORT "$@"
+    exec gosu "app" "$0" "$@"
+    # NOT REACHABLE
 fi
+
+exec uvicorn spoolman.main:app --host $SPOOLMAN_HOST --port $SPOOLMAN_PORT "$@"