build: Explicitly start libvirt daemon in container

.gitea/workflows/actions.yaml

@@ -54,6 +54,19 @@ jobs:
         run: |
           mkdir -p \
             ubuntu-vm
+      - name: Cache source iso
+        id: cache-iso
+        uses: actions/cache@v4
+        with:
+          path: ubuntu-vm/ubuntu.iso
+          key: ubuntu-24.04.2-live-server-amd64
+
+      - if: ${{ steps.cache-iso.outputs.cache-hit != 'true' }}
+        name: Download source Ubuntu iso
+        continue-on-error: true
+        run: |
+          curl -L -o ubuntu-vm/ubuntu.iso https://releases.ubuntu.com/24.04/ubuntu-24.04.2-live-server-amd64.iso
+
       - name: Generate seed ISO
         run: |
           apt-get update && \
@@ -72,12 +85,6 @@ jobs:
         env:
           ROOT_HASHED_PASSWORD: ${{ secrets.ROOT_HASHED_PASSWORD }}
           PUBLIC_SSHKEY: ${{ secrets.PUBLIC_SSHKEY }}
-      - name: Assert source Ubuntu ISO
-        run: |
-          # TODO: Make this path configurable in a yaml file
-          [[ ! -f '/iso/Canonical/Ubuntu Server 24.04/ubuntu-24.04.2-desktop-amd64.iso' ]] || {
-            echo 'Missing source iso file - exiting'; exit 1
-          }
       - name: Create empty QCOW2 disk
         run: |
           apt-get update && \
@@ -86,10 +93,16 @@ jobs:
 
           qemu-img create -f qcow2 ubuntu-vm/ubuntu.qcow2 10G
       - name: Run virt-install
+        # container: quay.io/kubevirt/libvirt
         run: |
           apt-get update && \
           apt-get install -y \
-            virtinst
+            libvirt-daemon-system \
+            libvirt-clients \
+            virtinst \
+            qemu-utils
+
+          libvirtd -d
 
           virt-install \
             --name ubuntu-harvester \
@@ -97,7 +110,7 @@ jobs:
             --vcpus 2 \
             --disk path=ubuntu-vm/ubuntu.qcow2,size=10,format=qcow2 \
             --disk path=ubuntu-vm/seed.iso,device=cdrom \
-            --cdrom '/iso/Canonical/Ubuntu Server 24.04/ubuntu-24.04.2-desktop-amd64.iso' \
+            --cdrom ubuntu-vm/ubuntu.iso \
             --os-variant ubuntu24.04 \
             --graphics none \
             --network network=default \