CI: add AlmaLinux 8, CentOS Stream 9, and Fedora

Lima (http://lima-vm.io) is used to create VM of these distros.

Close issue 220

Signed-off-by: Akihiro Suda <[email protected]>

Author: AkihiroSuda

.github/workflows/validate.yml

@@ -90,3 +90,46 @@ jobs:
 
       - name: test
         run: make TESTFLAGS="${{ matrix.race }}" test
+
+  vm:
+    name: "VM"
+    strategy:
+      fail-fast: false
+      matrix:
+        template:
+          - template://almalinux-8
+          - template://centos-stream-9
+          - template://fedora
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: "Install Lima"
+        uses: lima-vm/lima-actions/setup@v1
+        id: lima-actions-setup
+
+      - name: "Cache ~/.cache/lima"
+        uses: actions/cache@v4
+        with:
+          path: ~/.cache/lima
+          key: lima-${{ steps.lima-actions-setup.outputs.version }}
+
+      - name: "Start VM"
+        # --plain is set to disable file sharing, port forwarding, built-in containerd, etc.
+        run: limactl start --plain --name=default --cpus=1 --memory=1 ${{ matrix.template }}
+
+      - name: "Set up SSH"
+        uses: lima-vm/lima-actions/ssh@v1
+
+      - name: "Initialize VM"
+        # plain old rsync and ssh are used for the initialization of the guest,
+        # so that people who are not familiar with Lima can understand the initialization steps.
+        run: |
+          set -eux -o pipefail
+          # Sync the current directory to /tmp/selinux in the guest
+          rsync -a -e ssh . lima-default:/tmp/selinux
+          # Install packages
+          ssh lima-default sudo dnf install -y git make golang
+
+      - name: "make test"
+        run: ssh lima-default make -C /tmp/selinux test