[UPD] ansible-lint

.ansible-lint

+---
+warn_list:  # or 'skip_list' to silence them completely
+    - git-latest  # Git checkouts must contain explicit version
+    - ignore-errors  # Use failed_when and specify error conditions instead of using ignore_errors
+    - no-changed-when  # Commands should not change things if nothing needs doing
+    - no-handler  # Tasks that run when changed should likely be handlers
+    - package-latest  # Package installs should not use latest

.yamllint

+---
+# Based on ansible-lint config
+extends: default
+
+rules:
+    braces:
+        max-spaces-inside: 1
+        level: error
+    brackets:
+        max-spaces-inside: 1
+        level: error
+    colons:
+        max-spaces-after: -1
+        level: error
+    commas:
+        max-spaces-after: -1
+        level: error
+    # comments enable
+    comments: enable
+    comments-indentation: enable
+    document-start: enable
+    empty-lines:
+        max: 3
+        level: error
+    hyphens:
+        level: error
+    indentation:
+        level: warning
+        indent-sequences: consistent
+        spaces: 4
+        check-multi-line-strings: true
+    key-duplicates: enable
+    line-length: disable
+    new-line-at-end-of-file: enable
+    new-lines:
+        type: unix
+    # trailing-spaces enable
+    trailing-spaces: enable
+    truthy: enable

handlers/main.yml

 ---
 
-- name: restart nagios docker
-  docker_compose:
+- name: Restart nagios docker
+  community.docker.docker_compose:
       project_src: /home/docker/nagios/
       restarted: true

meta/main.yml

 ---
 galaxy_info:
-  author: Rémi
+    author: lefilament
     description: This role deploys Nagios with Docker to monitor all other defined servers
     company: Le Filament (https://le-filament.com)
     license: AGPL-3.0-or-later
-  min_ansible_version: 2.1
+    min_ansible_version: "2.1"
     platforms:
-    - name: EL
-      versions:
-        - 7
         - name: Ubuntu
           versions:
               - xenial

tasks/main.yml

 ---
 
 ## Install Nagios docker
-- name: create Nagios docker structure on server in /home/docker/nagios
-  file:
+- name: Create Nagios docker structure on server in /home/docker/nagios
+  ansible.builtin.file:
       name: "{{ item }}"
       state: directory
       owner: '999'
@@ -13,14 +13,14 @@
       - /home/docker/nagios/stylesheets
 
 - name: Copy nagios docker-compose file
-  template:
+  ansible.builtin.template:
       src: nagios.yaml.j2
       dest: /home/docker/nagios/docker-compose.yaml
       mode: '0644'
-  notify: restart nagios docker
+  notify: Restart nagios docker
 
-- name: copy configuration files
-  copy:
+- name: Copy configuration files
+  ansible.builtin.copy:
       src: "{{ item }}"
       dest: /home/docker/nagios/etc/{{ item }}
       mode: '0644'
@@ -30,11 +30,11 @@
       - cgi.cfg
       - nagios.cfg
       - resource.cfg
-  notify: restart nagios docker
+  notify: Restart nagios docker
   tags: nagios_config
 
-- name: copy CSS files
-  copy:
+- name: Copy CSS files
+  ansible.builtin.copy:
       src: "{{ item }}"
       dest: /home/docker/nagios/stylesheets/{{ item }}
       mode: '0644'
@@ -64,11 +64,11 @@
       - tac.css
       - trends.css
       - trendsgraph.css
-  notify: restart nagios docker
+  notify: Restart nagios docker
   tags: nagios_config
 
-- name: copy objects configuration files
-  template:
+- name: Copy objects configuration files
+  ansible.builtin.template:
       src: "{{ item }}.j2"
       dest: /home/docker/nagios/etc/objects/{{ item }}
       mode: '0644'
@@ -81,22 +81,23 @@
       - contacts.cfg
       - commands.cfg
       - timeperiods.cfg
-  notify: restart nagios docker
+  notify: Restart nagios docker
   tags: nagios_config
 
-- name: create apache2 dir on server in /home/docker/nagios
-  file:
+- name: Create apache2 dir on server in /home/docker/nagios
+  ansible.builtin.file:
       name: /home/docker/nagios/apache2
       owner: 'root'
       group: 'root'
       mode: '0755'
       state: directory
 
-- name: install apache2 configuration files
-  copy:
+- name: Install apache2 configuration files
+  ansible.builtin.copy:
       src: "{{ item }}"
       dest: /home/docker/nagios/apache2/{{ item }}
       mode: '0644'
   with_items:
       - 000-default.conf
       - nagios.conf
+  notify: Restart nagios docker