build: Assert successful completion of cloud-init

.gitea/workflows/actions.yaml

@@ -82,6 +82,7 @@ jobs:
         run: |
           apt-get update && \
           apt-get install -y \
+            libguestfs-tools \
             qemu-system-x86 \
             qemu-utils
 
@@ -100,9 +101,7 @@ jobs:
             -net nic \
             -net user
 
-          qemu-img convert -O qcow2 ubuntu-vm/ubuntu.img ubuntu-vm/ubuntu-compacted.img
-
-          ls -lash ubuntu-vm
+          virt-ls -a ubuntu-vm/ubuntu.img /var/lib/cloud-init/ | grep -q template-generation-success
 
   # semrel:
   #   name: Semantic Release

cloud-init/user-data.template

@@ -18,7 +18,7 @@ runcmd:
   - truncate -s 0 /etc/hostname /etc/machine-id
   - rm -f /etc/ssh/ssh_host_* /var/lib/dbus/machine-id
   - ln -s /etc/machine-id /var/lib/dbus/machine-id
-  - poweroff
+  - touch /var/lib/cloud-init/template-generation-success
 
 disable_root: false
 users:
@@ -30,3 +30,8 @@ users:
       - ${PUBLIC_SSHKEY}
 ssh_authorized_keys:
   - ${PUBLIC_SSHKEY}
+
+power_state:
+  delay: now
+  mode: poweroff
+  condition: true