Fix docker compose error and improve developer experience

[danny900714]

After discussion with @calvinrp, we reached a consensus that improving the local development experience and documentation is important to make more developer participate in this project. This pull request resolves the following issues and makes some improvements:

• Update Dockerfile with the following improvements
  • Fix previous docker build error
  • Update Rust and Debian base image to the latest version
  • Enable docker buildx cache for faster build time
  • Follow docker image best practice by installing minimal dependencies and running with non-root user
• Update docker-compose.yaml and docker-compose.postgres.yaml to fix deployment error
  • Use the docker compose secret feature to manage confidential environment variables
  • Watch file changes and rebuild the container during local development
• Add CONTRIBUTING.md to explain the local development process
• Remove the old infra directory

[calvinrp]

Thank you!

This looks good, but trying to run locally. The docker container for the warg-server is bound to the port but isn't responding to my HTTP requests. For both the in memory and Postgres implementations. Not sure what is going on. Still investigating.

[calvinrp]

Thank you!

This looks good, but trying to run locally. The docker container for the warg-server is bound to the port but isn't responding to my HTTP requests. For both the in memory and Postgres implementations. Not sure what is going on. Still investigating.

Found the issue! In Docker, 127.0.0.1 is “this container” not “this machine”. We need to bind the warg-server to 0.0.0.0 instead of 127.0.0.1. Pushed that change.

[danny900714]

Thanks for finding the problem! I'm also overwhelmed by that weird behavior.