Refactor and update release workflow

- Use a matrix for multiple builds
- Merge mockbuild.sh into release.yml
- Upload dist only once (not once per build)
- Make release package uploads more explicit (makes errors more visible)
- Configure mock to log to the runner log
- Use variables to define artifact names only once
- Target the release explicitly by id
- Run the test suite in each mock environment (fixes #369)
- Update OpenSUSE Leap build to 15.5 (15.3 is EOL and not building
  correctly)
- Add a Rocky Linux 9 build
- Switch to Rocky Linux 9 build container (mostly to get mock
  configuration for newer OpenSUSE Leap)
- Allow successful releases to complete if some releases fail
  (`fail-fast: false`)

Signed-off-by: Jonathon Anderson <janderson@ciq.com>

.github/workflows/release.yml

@@ -0,0 +1,123 @@
+---
+name: release
+
+on:
+  release:
+    types:
+      - published
+
+jobs:
+  dist:
+    name: Checkout code and build warewulf.spec and dist
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set DIST
+        run: |
+          echo "DIST=warewulf-${GITHUB_REF#refs/tags/v}.tar.gz" >> $GITHUB_ENV
+
+      - name: Checkout Code
+        uses: actions/checkout@v3
+
+      - name: Build spec and dist
+        run: |
+          make warewulf.spec dist
+
+      - name: Upload warewulf.spec
+        uses: actions/upload-artifact@v3
+        with:
+          name: warewulf.spec
+          path: warewulf.spec
+
+      - name: Upload DIST
+        uses: actions/upload-artifact@v3
+        with:
+          name: ${{ env.DIST }}
+          path: ${{ env.DIST }}
+
+      - name: Attach DIST to release
+        uses: xresloader/upload-to-github-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          release_id: ${{ github.event.release.id }}
+          file: ${{ env.DIST }}
+
+  rpm:
+      name: Build RPMs
+      needs: dist
+      runs-on: ubuntu-latest
+      container:
+        image: rockylinux/rockylinux:9
+        options: --privileged
+      strategy:
+        fail-fast: false
+        matrix:
+          include:
+            - target: rocky+epel-8-x86_64
+              arch: x86_64
+              dist: el8
+            - target: rocky+epel-9-x86_64
+              arch: x86_64
+              dist: el9
+            - target: centos+epel-7-x86_64
+              arch: x86_64
+              dist: el7
+            - target: opensuse-leap-15.5-x86_64
+              arch: x86_64
+              dist: suse.lp155
+      steps:
+        - name: Install EPEL
+          run: dnf -y install epel-release
+
+        - name: Install mock and rpm-build
+          run: |
+            dnf -y install mock rpm-build
+            echo "config_opts['print_main_output'] = True" >>/etc/mock/site-defaults.cfg
+
+        - name: Download spec
+          uses: actions/download-artifact@v3
+          with:
+            name: warewulf.spec
+
+        - name: Set the expected version
+          run: |
+            echo "EXPECTED_VERSION=${GITHUB_REF#refs/tags/v}" >> $GITHUB_ENV
+
+        - name: Download dist
+          uses: actions/download-artifact@v3
+          with:
+            name: warewulf-${{ env.EXPECTED_VERSION }}.tar.gz
+
+        - name: Set RPM and SRPM
+          run: |
+            VERSION=$(rpm -q --qf "%{VERSION}\n" --specfile warewulf.spec)
+            GENERIC_RELEASE=$(rpm -q --qf "%{RELEASE}\n" --specfile warewulf.spec | cut -d. -f1-2)
+            RPM=warewulf-${VERSION}-${GENERIC_RELEASE}.${{ matrix.dist }}.${{ matrix.arch }}.rpm
+            SRPM=warewulf-${VERSION}-${GENERIC_RELEASE}.${{ matrix.dist }}.src.rpm
+            echo "RPM=${RPM}" >> $GITHUB_ENV
+            echo "SRPM=${SRPM}" >> $GITHUB_ENV
+
+        - name: Build RPMs and run tests
+          run: |
+            mock -r ${{ matrix.target }} --rebuild --spec=warewulf.spec --sources=.
+            mock -r ${{ matrix.target }} --chroot -- make -C /builddir/build/BUILD/warewulf-${{ env.EXPECTED_VERSION }} test
+
+        - name: Upload RPM
+          uses: actions/upload-artifact@v3
+          with:
+            name: ${{ env.RPM }}
+            path: /var/lib/mock/${{ matrix.target }}/result/${{ env.RPM }}
+
+        - name: Upload SRPM
+          uses: actions/upload-artifact@v3
+          with:
+            name: ${{ env.SRPM }}
+            path: /var/lib/mock/${{ matrix.target }}/result/${{ env.SRPM }}
+
+        - name: Attach RPM and SRPM to release
+          uses: xresloader/upload-to-github-release@v1
+          env:
+            GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          with:
+            release_id: ${{ github.event.release.id }}
+            file: "/var/lib/mock/${{ matrix.target }}/result/${{ env.RPM }};/var/lib/mock/${{ matrix.target }}/result/${{ env.SRPM }}"