Update Dockerfile

Dockerfile

@@ -11,11 +11,26 @@ COPY . /app
 COPY --from=circulartextapp/readspaceout /etc/passwd /etc/passwd
 COPY --from=circulartextapp/readspaceout /etc/group /etc/group
 
-# Set appropriate permissions for the application directory using UID and GID
-RUN if getent passwd user > /dev/null 2>&1 && getent group user > /dev/null 2>&1; then \
-      chown -R "$USER_ID":"$USER_GROUP" /app && chmod -R 755 /app; \
+# Set the user environment variables
+ARG USER_ID=1000
+ARG USER_GROUP=user
+ENV USER_ID=$USER_ID \
+    USER_GROUP=$USER_GROUP
+
+# Check if the user already exists
+RUN if [ -z "$USER_ID" ]; then \
+      echo "User ID not provided. Using the default user ID 1000."; \
+      USER_ID=1000; \
+    fi && \
+    if id "$USER_ID" >/dev/null 2>&1; then \
+      echo "User with ID $USER_ID already exists."; \
+    else \
+      useradd -m -u "$USER_ID" -g "$USER_GROUP" user; \
     fi
 
+# Set appropriate permissions for the application directory
+RUN chown -R "$USER_ID":"$USER_GROUP" /app && chmod -R 755 /app
+
 # Install gosu (adjust the package manager based on your base image)
 RUN apt-get update && apt-get install -y gosu && rm -rf /var/lib/apt/lists/*