Store console output to logfile on kvm guests

playbooks/include/vm-create.yml

@@ -5,6 +5,7 @@
 
   vars:
     letters: "{{ 'bcdefghijklmnopqrstuvwxyz'|list }}"
+    console_log: "/var/log/libvirt/qemu/{{ inventory_hostname }}.console.log"
     vmhost_uri: "qemu+ssh://root@{{ vmhost }}/system"
     root_pubkey: "{{ lookup('file', '/srv/ansible-private/ssh/id_rsa.pub') }}"
     extra_disks: >-
@@ -62,7 +63,8 @@
       command: >
         virt-install --connect {{ vmhost_uri }} \
           --name {{ inventory_hostname }} \
-          --graphics none --boot useserial=on --serial pty --noautoconsole \
+          --graphics none --boot useserial=on --noautoconsole \
+          --serial pty,log.file={{ console_log }} \
           --controller usb,model=none --sound none --memory {{ mem_size }} \
           --vcpus {{ num_cpus }} --cpu host-passthrough \
           --disk /srv/libvirt/ssd/{{ inventory_hostname }}.a.img,cache=none,format=raw,bus=virtio,size={{ dsk_size }} \