style: make ansible-lint happier

roles/postfix/handlers/main.yml

@@ -1,14 +1,18 @@
 ---
 
-- name: postmap virtual-regexp
-  command: postmap /etc/postfix/virtual-regexp
-  listen: "postmap files"
+- name: Postmap virtual-regexp
+  ansible.builtin.command:
+    cmd: postmap /etc/postfix/virtual-regexp
+  changed_when: true
+  listen: "Postmap files"
 
-- name: postmap transport
-  command: postmap /etc/postfix/transport
-  listen: "postmap files"
+- name: Postmap transport
+  ansible.builtin.command:
+    cmd: postmap /etc/postfix/transport
+  changed_when: true
+  listen: "Postmap files"
 
-- name: restart postfix
-  service:
+- name: Restart postfix
+  ansible.builtin.service:
     name: postfix
     state: restarted

roles/postfix/tasks/main.yml

@@ -1,38 +1,40 @@
 ---
 
-- name: install postfix
-  package:
+- name: Install postfix
+  ansible.builtin.package:
     name: postfix
     state: present
 
-- name: install mailutils
-  package:
+- name: Install mailutils
+  ansible.builtin.package:
     name: mailutils
     state: present
 
-- name: main configuration files
-  copy:
+- name: Main configuration files
+  ansible.builtin.copy:
     src: "./files/{{ item }}"
     dest: "/etc/postfix/{{ item }}"
+    mode: 0644
   loop:
     - main.cf
     - master.cf
   notify:
-    - restart postfix
+    - Restart postfix
 
-- name: map files
-  copy:
+- name: Map files
+  ansible.builtin.copy:
     src: "./files/{{ item }}"
     dest: "/etc/postfix/{{ item }}"
+    mode: 0644
   loop:
     - transport
     - virtual-regexp
   notify:
-    - postmap files
-    - restart postfix
+    - Postmap files
+    - Restart postfix
 
-- name: mail generation script
-  copy:
+- name: Mail generation script
+  ansible.builtin.copy:
     src: ./files/generate_email.sh
     dest: /usr/local/bin/generate_email.sh
     owner: root