update dockerfile

Dockerfile

@@ -3,8 +3,11 @@ FROM ubuntu:20.04
 # Exposing ports
 EXPOSE 6900
 
+# Working Directory
+WORKDIR /app
+
 # Environment variables
-ENV ARGILLA_LOCAL_AUTH_USERS_DB_FILE=/users.yml
+ENV ARGILLA_LOCAL_AUTH_USERS_DB_FILE=/app/users.yml
 ENV UVICORN_PORT=6900
 
 # Install Python
@@ -23,9 +26,12 @@ RUN apt update
 RUN apt -y install elasticsearch
 
 # Copy users db file along with execution script
-COPY users.yml /
-COPY start.sh /
-RUN chmod +x /start.sh
+COPY users.yml /app
+COPY start.sh /app
+RUN chmod +x /app/start.sh
+
+# Permissions
+RUN chmod -R 777 /app
 
 # Executing argilla along with elasticsearch
-CMD /bin/bash /start.sh
+CMD /bin/bash /app/start.sh