Reproducible builds by default + DEB packaging

[bakhtin]

📝 Summary

Refactor Makefile and release CI pipeline to build binaries reproducibly

💡 Motivation and Context

Makefile

Refactor Makefile to build binaries reproducibly. make build will now apply reproducible profile by default on x86_64 platform. On other platforms release profile is used.

reproducible profile is a new profile I added to Cargo.toml. It inherits from release tweaking options for reproducibility.

Previously, make build built for the dev profile. dev builds will now have a separate make build-dev target.

I added separate targets for packaging binaries into Debian (*.deb) packages. deb packages are also reproducible.

Release pipeline

Updated release pipeline to support building the new targets. Publish deb packages after the successful build. Only rbuilder-operator and bid-scraper are packaged.

Switched to explicitly using Ubuntu 24 instead of the latest to avoid compatibility issues (e.g., with glibc).

---

✅ I have completed the following steps:

• Run make lint
• Run make test
• Added tests (if applicable)

[Copilot]

Pull Request Overview

This PR introduces reproducible builds by default and adds Debian package support to the rbuilder project. The changes enable deterministic binary builds on x86_64 platforms and provide Debian packaging for rbuilder-operator and bid-scraper components.

• Refactored Makefile to use a new reproducible profile by default on x86_64, with fallback to release profile on other architectures
• Added Debian packaging configuration and build targets for distributing binaries as .deb packages
• Updated CI pipeline to use reproducible builds and publish Debian packages as artifacts

Reviewed Changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
Makefile	Added architecture detection, reproducible build flags, and Debian packaging targets
Cargo.toml	Added new reproducible profile inheriting from release with optimizations for deterministic builds
crates/*/Cargo.toml	Added Debian package metadata configuration for rbuilder-operator and bid-scraper
crates/*/pkg/	Added systemd service files and default configuration files for Debian packages
.github/workflows/release.yaml	Updated CI to use reproducible builds and publish Debian packages

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

[Copilot]

Inconsistent indentation: Line 44 uses tabs, while line 45 uses mixed tabs and spaces. Use consistent tab indentation for all lines in this section.

Suggested change

	# Optimize for modern CPUs
	RUST_BUILD_FLAGS += -C target-cpu=x86-64-v3
	# Remove build ID from the binary to ensure reproducibility across builds
	RUST_BUILD_FLAGS += -C link-arg=-Wl,--build-id=none
	# Remove metadata hash from symbol names to ensure reproducible builds
	RUST_BUILD_FLAGS += -C metadata=''
	# Remap paths to ensure reproducible builds
	# Optimize for modern CPUs
	RUST_BUILD_FLAGS += -C target-cpu=x86-64-v3
	# Remove build ID from the binary to ensure reproducibility across builds
	RUST_BUILD_FLAGS += -C link-arg=-Wl,--build-id=none
	# Remove metadata hash from symbol names to ensure reproducible builds
	RUST_BUILD_FLAGS += -C metadata=''
	# Remap paths to ensure reproducible builds

[Copilot]

Inconsistent indentation: Line 51 uses tabs and spaces while line 52 uses only spaces. Use consistent tab indentation for all lines in this section.

Suggested change

	# Remap paths to ensure reproducible builds
	# Remap paths to ensure reproducible builds