roles: use fully qualified module names

roles/common/tasks/main.yml

@@ -1,54 +1,54 @@
 ---
 - name: Import OS-specific variables
-  include_vars: "vars/{{ ansible_distribution }}.yml"
+  ansible.builtin.include_vars: "vars/{{ ansible_distribution }}.yml"
   tags: always
 
 - name: Configure network time
-  import_tasks: ntp.yml
+  ansible.builtin.import_tasks: ntp.yml
   tags: ntp
 
 - name: Install common packages
-  include_tasks: packages_Debian.yml
+  ansible.builtin.include_tasks: packages_Debian.yml
   when: ansible_distribution == 'Debian'
   tags: packages
 
 - name: Install common packages
-  include_tasks: packages_Ubuntu.yml
+  ansible.builtin.include_tasks: packages_Ubuntu.yml
   when: ansible_distribution == 'Ubuntu'
   tags: packages
 
 - name: Configure firewall
-  include_tasks: firewall_Debian.yml
+  ansible.builtin.include_tasks: firewall_Debian.yml
   when: ansible_distribution == 'Debian'
   tags: firewall
 
 - name: Configure firewall
-  include_tasks: firewall_Ubuntu.yml
+  ansible.builtin.include_tasks: firewall_Ubuntu.yml
   when: ansible_distribution == 'Ubuntu'
   tags: firewall
 
 - name: Configure secure shell daemon
-  import_tasks: sshd.yml
+  ansible.builtin.import_tasks: sshd.yml
   tags: sshd
 
 # containers identify as virtualization hosts, which makes this tricky, because we have actual Debian VM hosts!
 - name: Reconfigure /etc/sysctl.conf
   when: ansible_virtualization_role != 'host'
-  template: src=sysctl_{{ ansible_distribution }}.j2 dest=/etc/sysctl.conf owner=root group=root mode=0644
+  ansible.builtin.template: src=sysctl_{{ ansible_distribution }}.j2 dest=/etc/sysctl.conf owner=root group=root mode=0644
   notify:
     - reload sysctl
   tags: sysctl
 
 - name: Reconfigure /etc/rc.local
   when: ansible_distribution == 'Ubuntu' and ansible_distribution_version is version('19.04', '<=')
-  template: src=rc.local_Ubuntu.j2 dest=/etc/rc.local owner=root group=root mode=0755
+  ansible.builtin.template: src=rc.local_Ubuntu.j2 dest=/etc/rc.local owner=root group=root mode=0755
 
 - name: Set I/O scheduler
-  template: src=etc/udev/rules.d/60-scheduler.rules.j2 dest=/etc/udev/rules.d/60-scheduler.rules owner=root group=root mode=0644
+  ansible.builtin.template: src=etc/udev/rules.d/60-scheduler.rules.j2 dest=/etc/udev/rules.d/60-scheduler.rules owner=root group=root mode=0644
   tags: udev
 
 - name: Copy admin SSH keys
-  import_tasks: ssh-keys.yml
+  ansible.builtin.import_tasks: ssh-keys.yml
   tags: ssh-keys
 
 # vim: set sw=2 ts=2: