Add RPM packaging for Rocky 8/9/10 + AL2023 with x86_64/arm64 support

[fcostaoliveira]

Add RPM packaging and YUM repository publishing for Red Hat-based distributions with multi-architecture support.

Changes

New Files

• rpm/memtier-benchmark.spec - RPM spec file for building memtier_benchmark
• .github/workflows/release-rpm.yml - GitHub Actions workflow for RPM builds and publishing

Supported Distributions

Distribution	x86_64	aarch64
Rocky Linux 8 (el8)	✅	✅
Rocky Linux 9 (el9)	✅	✅
Rocky Linux 10 (el10)	✅	✅
Amazon Linux 2023	✅	✅

Compatible with RHEL 8/9/10 and AlmaLinux 8/9/10

Workflow Behavior

Event	Build RPMs	Smoke Test	Publish to YUM
PR to master/main	✅	❌	❌
Push to master/main	✅	✅	❌
Release published	✅	✅	✅
Manual dispatch	✅	✅	❌

Repository Structure

Packages will be published to https://packages.redis.io/rpm/:

https://packages.redis.io/rpm/
├── el8/
│   ├── x86_64/
│   │   ├── repodata/
│   │   └── memtier-benchmark-*.el8.x86_64.rpm
│   └── aarch64/
│       ├── repodata/
│       └── memtier-benchmark-*.el8.aarch64.rpm
├── el9/
│   ├── x86_64/
│   └── aarch64/
├── el10/
│   ├── x86_64/
│   └── aarch64/
└── amzn2023/
    ├── x86_64/
    └── aarch64/

which aligs with what we already have in DEB Repository Structure:

https://packages.redis.io/deb/
├── dists/
│   ├── focal/           # Ubuntu 20.04
│   │   ├── Release
│   │   ├── Release.gpg
│   │   └── main/
│   │       └── binary-amd64/
│   │           └── Packages
│   ├── jammy/           # Ubuntu 22.04
│   ├── noble/           # Ubuntu 24.04
│   ├── bullseye/        # Debian 11
│   └── bookworm/        # Debian 12
└── pool/
    └── main/
        └── m/
            └── memtier-benchmark/
                ├── memtier-benchmark_*_amd64.deb
                └── memtier-benchmark_*_arm64.deb

---

Note

Medium Risk
Introduces new release automation that signs artifacts and publishes to S3 with --delete, so misconfiguration could overwrite repository contents despite added safeguards.

Overview
Adds RPM packaging support by introducing a new rpm/memtier-benchmark.spec and a GitHub Actions workflow to build SRPMs and RPMs for EL8/9/10 and Amazon Linux 2023 across x86_64 and aarch64.

The workflow smoke-tests installation on non-PR runs, and on published (non-prerelease) releases signs RPMs, generates createrepo metadata, and syncs a per-distro/arch YUM repository layout to S3 (also uploading RPMs as GitHub release assets). Documentation is updated with YUM repo setup/install instructions for RHEL-compatible distros and AL2023.

^{Written by Cursor Bugbot for commit e10c1a7. This will update automatically on new commits. Configure here.}

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