roles: use fully qualified module names

roles/nginx/tasks/vhosts.yml

@@ -2,18 +2,18 @@
 
 - block:
   - name: Configure https vhosts
-    template: src=vhost.conf.j2 dest={{ nginx_confd_path }}/{{ item.domain_name }}.conf mode=0644 owner=root group=root
+    ansible.builtin.template: src=vhost.conf.j2 dest={{ nginx_confd_path }}/{{ item.domain_name }}.conf mode=0644 owner=root group=root
     loop: "{{ nginx_vhosts }}"
     notify:
       - reload nginx
 
   - name: Generate self-signed TLS cert
-    command: openssl req -x509 -nodes -sha256 -days 365 -subj "/C=SO/ST=SO/L=snakeoil/O=snakeoil/CN=snakeoil" -newkey rsa:2048 -keyout /etc/ssl/private/nginx-snakeoil.key -out /etc/ssl/certs/nginx-snakeoil.crt -extensions v3_ca creates=/etc/ssl/certs/nginx-snakeoil.crt
+    ansible.builtin.command: openssl req -x509 -nodes -sha256 -days 365 -subj "/C=SO/ST=SO/L=snakeoil/O=snakeoil/CN=snakeoil" -newkey rsa:2048 -keyout /etc/ssl/private/nginx-snakeoil.key -out /etc/ssl/certs/nginx-snakeoil.crt -extensions v3_ca creates=/etc/ssl/certs/nginx-snakeoil.crt
     notify:
       - reload nginx
 
   - name: Download 4096-bit RFC 7919 dhparams
-    get_url:
+    ansible.builtin.get_url:
       url: https://raw.githubusercontent.com/internetstandards/dhe_groups/master/ffdhe4096.pem
       checksum: sha256:64852d6890ff9e62eecd1ee89c72af9af244dfef5b853bcedea3dfd7aade22b3
       dest: "{{ nginx_ssl_dhparam }}"
@@ -22,7 +22,7 @@
 
   # TODO: this could break because we can override the document root in host vars
   - name: Create vhost document roots
-    file: path={{ nginx_root_prefix }}/{{ item.domain_name }} state=directory mode=0755 owner=nginx group=nginx
+    ansible.builtin.file: path={{ nginx_root_prefix }}/{{ item.domain_name }} state=directory mode=0755 owner=nginx group=nginx
     loop: "{{ nginx_vhosts }}"
   tags: nginx