common: enable serial console on KVM VMs

roles/common/handlers/main.yml

@@ -3,5 +3,8 @@
 - name: Restart journald
   service: name=systemd-journald state=restarted
 
+- name: update-grub
+  command: update-grub
+
 - name: update-initramfs
   command: update-initramfs -u -k all

roles/common/tasks/Debian.yml

@@ -38,6 +38,15 @@
   copy: src=resume dest=/etc/initramfs-tools/conf.d/resume
   notify: update-initramfs
 
+- name: Enable serial console on KVM VMs
+  lineinfile:
+    path: "/etc/default/grub"
+    state: "present"
+    regexp: "^#?GRUB_CMDLINE_LINUX=.*"
+    line: "GRUB_CMDLINE_LINUX=\"console=ttyS0,115200 console=tty0\""
+  notify: update-grub
+  when: ansible_virtualization_role == "guest" and ansible_virtualization_type == "kvm"
+
 - name: Prevent normal users from running su
   lineinfile:
     path: /etc/pam.d/su