SRE-2452 rpms: Script to build RPMs from scratch

Script to build all RPMs, including dependencies on
RockyLinux 8 and 9.

Introduces a new GHA workflow file for running the script.

Signed-off-by: Ryon Jensen <ryon.jensen@intel.com>

Doc-only: true

.github/workflows/test_rpm_from_scratch_process.yml

@@ -0,0 +1,28 @@
+name: RPM Build Script Test
+
+on:
+  pull_request:
+
+permissions: {}
+jobs:
+  Run_in_docker:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        os: ["rockylinux:8", "rockylinux:9"]
+        # os: ["rockylinux:8", "rockylinux:9", "opensuse/leap:15.4", "opensuse/leap:15.5"]
+        platform: ["amd64"]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+      - name: Run Shell Script in Docker
+        run: |
+          distro="${{ matrix.os }}"
+          distro_clean="${distro//[:\/]/_}"
+          rpm_dst=~/rpms/$distro_clean
+
+          mkdir -p "$rpm_dst"
+          chmod 777 "$rpm_dst"
+          docker run --rm -v "$rpm_dst":/root/rpms -v .:/daos $distro /daos/utils/build_rpms_from_scratch.sh /root/rpms
+

utils/build_rpms_from_scratch.sh

@@ -0,0 +1,142 @@
+#!/bin/bash
+set -uex
+
+###############################################################################
+# DAOS RPM Build Script
+#
+# Description:
+# This script sets up an environment to build and install RPM packages for DAOS
+# and its dependencies on a Rocky Linux system. It automates the installation
+# of required tools, package dependencies, and specific repositories, ensuring
+# that each RPM is built in a temporary location and copied to a destination
+# directory.
+#
+# Usage:
+#   Run the script in a Rocky Linux system
+#
+# Arguments:
+#   1. Destination for built RPMs (default: "$HOME/rpm/")
+#
+###############################################################################
+
+dnf_builddep() {
+  local rpms_dst=$1
+  local spec_file="$2"
+  dnf --nogpgcheck --repofrompath rpms,"$rpms_dst" --refresh builddep -y "$spec_file"
+}
+
+setup_rpm_build_env() {
+  el_version=${1:-8} # default to '8'
+
+  # Update and install required packages
+  dnf install -y \
+      git \
+      rpm-build \
+      rpmdevtools \
+      dnf-plugins-core \
+      epel-release
+
+  # Install build tools and dependencies
+  dnf groupinstall -y "Development Tools"
+  dnf install -y mock epel-release
+
+  # enable Power Tools or CodeReady Builder depending on el version
+  if [[ "$el_version" == "8" ]]; then
+    dnf config-manager --set-enabled powertools
+  elif [[ "$el_version" == "9" ]]; then
+    dnf config-manager --set-enabled crb # CodeReady Builder
+  else
+    echo "Unsupported EL Version: $el_version"
+    exit 1
+  fi
+
+  # ignore dpdk because want to use rpms build from daos-stack/dpdk
+  dnf update -y --exclude=dpdk --exclude=dpdk-devel
+}
+
+# Function to clone a daos-stack repo, build rpms, and setup the rpm repository
+build_and_install_rpm() {
+  local repo_name=$1
+  local rpm_build_options=${2:-""}
+
+  # Check if already successful - helps if running script many times while troubleshooting
+  if [ ! -f "$repo_name"/success ]; then
+    if [ -d "$repo_name" ]; then rm -rf "$repo_name"; fi
+    echo "Building $repo_name ..."
+    git clone https://github.com/daos-stack/"$repo_name".git
+    cd "$repo_name"
+      dnf_builddep "$rpms_dst" "$repo_name".spec
+      make rpms RPM_BUILD_OPTIONS="$rpm_build_options"
+      cp -r _topdir/RPMS/* "$rpms_dst"/
+      createrepo "$rpms_dst"
+      touch success
+    cd ..
+  else
+    echo "'$repo_name' dependency already built. Skipping step."
+  fi
+}
+
+get_el_version() {
+  VERSION_ID=$(grep "^VERSION_ID" /etc/os-release | cut -d'=' -f2 | tr -d '"' | cut -d'.' -f1)
+  echo "$VERSION_ID"
+}
+
+# ---- #
+# MAIN #
+# ---- #
+rpms_dst=${1:-"$HOME/rpms/"}
+build_dst="/tmp/rpmbuild/" # temp location to do the building
+
+echo "Building RPMs for EL $(get_el_version)."
+echo "RPMS will be located in $rpms_dst (built in $build_dst)"
+
+# make sure rpm and build folders are created
+mkdir -p "$rpms_dst" "$build_dst"
+
+# ------------------------------
+# Build Dependency and DAOS RPMS
+# ------------------------------
+setup_rpm_build_env "$(get_el_version)"
+
+cd $build_dst
+
+# Initialize the rpm repo
+createrepo "$rpms_dst"
+
+# Call the function with the repository name as an argument
+build_and_install_rpm "isa-l_crypto"
+build_and_install_rpm "dpdk" # dependency of spdk.
+build_and_install_rpm "spdk"
+build_and_install_rpm "argobots"
+build_and_install_rpm "mercury"
+build_and_install_rpm "pmdk" "--nocheck"
+
+# DAOS and Raft (Submodule)
+git clone --recursive https://github.com/daos-stack/daos.git
+
+# RAFT
+if [ ! -f daos/src/rdb/raft/success ]; then
+  cd daos/src/rdb/raft
+    dnf_builddep "$rpms_dst" raft.spec
+    make -f Makefile-rpm.mk
+    cp -r _topdir/RPMS/* "$rpms_dst"/
+    createrepo "$rpms_dst"
+    touch success
+  cd -
+fi
+
+# DAOS
+if [ ! -f daos/success ]; then
+  cd daos
+  dnf_builddep "$rpms_dst" ./utils/rpms/daos.spec
+  make -C utils/rpms rpms
+  cp -r utils/rpms/_topdir/RPMS/* "$rpms_dst"/
+  createrepo "$rpms_dst"
+  touch success
+  cd -
+fi
+
+# --------
+# Clean up
+# --------
+rm -rf $build_dst