created user in dockerfile

Dockerfile

@@ -12,13 +12,22 @@ ENV POETRY_NO_INTERACTION=1 \
     POETRY_VIRTUALENVS_CREATE=1 \
     POETRY_CACHE_DIR=/tmp/poetry_cache
 
+# Create a user
+RUN useradd -m -u 1000 user
+USER user
+ENV HOME=/home/user \
+    PATH=/home/user/.local/bin:$PATH
+
 # Set the working directory inside the container
-WORKDIR /app
+WORKDIR $HOME/app
+
+COPY --chown=user pyproject.toml poetry.lock ./
+COPY --chown=user chainlit.md app.py prompts.py ./
+COPY --chown=user .chainlit ./
+COPY --chown=user .chainlit/config.toml .chainlit/config.toml
 
-COPY pyproject.toml poetry.lock ./
-COPY chainlit.md app.py prompts.py ./
-COPY .chainlit ./
-COPY .chainlit/config.toml .chainlit/config.toml
+# Change the permissions of the working directory "read and write for user, read for others"
+RUN chmod -R 755 $HOME/app
 
 # Install project dependencies using Poetry
 RUN poetry install --without dev