Fix undefined PROJECT_NAME variable, remove deprecated compose version, and update restart policy

[gschaer]

Summary

This PR addresses three issues:

1. Undefined PROJECT_NAME Variable:
   The Dockerfile referenced ${PROJECT_NAME} in the default value of USER_CODE_PATH without declaring it as a build argument, which caused a warning during the build process.

2. Deprecated Compose File Version:
   Removed the version: '3' key from docker-compose.yml since specifying the version is deprecated in current Docker Compose files.

3. Restart Policy Update:
   Changed the container restart policy from on-failure:5 to unless-stopped. This update ensures that the container will restart unless explicitly stopped, which can provide more predictable behavior in various runtime environments.

Changes Made

• Dockerfile:

  • Declared ARG PROJECT_NAME before using it in the default value for USER_CODE_PATH.

• docker-compose.yml:

  • Removed the version: '3' line.
  • Added the build argument for PROJECT_NAME so its value is passed during the build.
  • Updated the restart policy to unless-stopped.

Testing

• Ran docker compose up --force-recreate --build -d to verify that:
  • The undefined variable warning is resolved.
  • The container builds and runs as expected.
• Confirmed that removing version: '3' does not affect the compose functionality.
• Verified that the container now adheres to the new restart policy.

Impact

These changes ensure that:

• The Docker build process handles the PROJECT_NAME variable correctly.
• The docker-compose configuration is up-to-date with current best practices.
• The container restart behavior is improved with the unless-stopped policy.