feat: docker updated

Dockerfile

@@ -5,12 +5,15 @@ ARG TESTWORKFLOW
 ARG DEMOWORKFLOW
 ARG USERGROUP
 
-RUN addgroup allusers && adduser -S -G allusers $USERGROUP
+# Create a group and user with the specified USERGROUP ID
+RUN addgroup -g $USERGROUP allusers && adduser -S -G allusers -u $USERGROUP appuser
+
 RUN mkdir /.npm
 RUN mkdir /.npm/_cacache
 
 RUN echo "Build argument value of TESTWORKFLOW : ${TESTWORKFLOW}"
 RUN echo "Build argument value of DEMOWORKFLOW : ${DEMOWORKFLOW}"
+
 # Set the working directory
 WORKDIR /app
 
@@ -33,12 +36,15 @@ RUN npm run build
 # Remove development dependencies
 RUN npm prune --production
 
-RUN chown -R $USERGROUP:allusers .
-RUN chown -R $USERGROUP:allusers ~/.npm
-RUN chown -R $USERGROUP:allusers /.npm
-RUN chmod -R 777 .
+# Change ownership of the directories to the created user
+RUN chown -R appuser:allusers /app /.npm ~/.npm
+RUN chmod -R 777 /app /.npm ~/.npm
+
+# Expose the application port
 EXPOSE 3000
-USER $USERGROUP
+
+# Switch to the new user
+USER appuser
 
 # Start the application
 CMD ["npm", "start"]