Fix the repository definition.

defaults/main.yml

@@ -1,7 +1,12 @@
 ---
-grafana_repo_key: https://apt.grafana.com/gpg.key
-grafana_repo: "deb [signed-by=/etc/apt/trusted.gpg.d/grafana.gpg] https://apt.grafana.com stable main"
-grafana_pkg_state: latest
+grafana_repo_key_url: https://apt.grafana.com/gpg.key
+grafana_repo_key_file: /etc/apt/keyrings/grafana.gpg
+grafana_repo_url: "https://apt.grafana.com"
+grafana_repo_components:
+  - main
+grafana_repo_suites:
+  - stable
+grafana_pkg_state: present
 grafana_packages:
   - grafana
 

tasks/main.yml

@@ -4,46 +4,55 @@
   tags: [grafana]
   block:
     - name: Ensure that grafana is stopped and disabled
-      service: name=grafana-server state=stopped enabled=no
+      ansible.builtin.service:
+        name: grafana-server
+        state: stopped
+        enabled: false
 
     - name: Remove the grafana deb packages
-      apt: name={{ grafana_packages }} state=absent
+      ansible.builtin.apt:
+        name: "{{ grafana_packages }}"
+        state: absent
 
     - name: Install the grafana deb repository
-      apt_repository: repo='{{ grafana_repo }}' state=absent update_cache=yes
+      ansible.builtin.apt_repository:
+        repo: '{{ grafana_repo }}'
+        state: absent
+        update_cache: true
 
 - name: Install grafana
   when: grafana_enabled
   tags: [grafana]
   block:
-    - name: Create a directory to store the repo keys
+    - name: Ensure that the directory were the GPG key is stored exists
       ansible.builtin.file:
-        dest: /etc/apt/trusted.gpg.d
+        dest: /etc/apt/keyrings
         state: directory
         mode: "0755"
         owner: root
         group: root
     - name: Install the grafana repo key
-      get_url:
-        url: "{{ grafana_repo_key }}"
-        dest: /etc/apt/trusted.gpg.d/grafana.gpg
-        state: present
+      ansible.builtin.get_url:
+        url: "{{ grafana_repo_key_url }}"
+        dest: "{{ grafana_repo_key_file }}"
         owner: root
         group: root
-        mode: 0644
+        mode: "0644"
       tags: [grafana, grafana_repo_key]
 
-    - name: Install the grafana deb repository
-      apt_repository:
-        repo: "{{ grafana_repo }}"
+    - name: Install the grafana repository for Ubuntu
+      ansible.builtin.deb822_repository:
+        name: grafana-com
+        types: [deb]
+        uris: "{{ grafana_repo_url }}"
+        components: "{{ grafana_repo_components }}"
+        suites: "{{ grafana_repo_suites }}"
+        signed_by: "{{ grafana_repo_key_file }}"
         state: present
-        update_cache: true
+        enabled: true
 
-    - name: Install the grafana deb packages
-      apt: name={{ grafana_packages }} state={{ grafana_pkg_state }} update_cache=yes cache_valid_time=1800
-
-    - name: Install the grafana configuration
-      ansible.builtin.ini_file:
+    - name: Basic grafana configuration
+      community.general.ini_file:
         path: /etc/grafana/grafana.ini
         section: "{{ item.section }}"
         option: "{{ item.option }}"
@@ -56,7 +65,7 @@
       notify: Restart grafana
       tags: [grafana, grafana_conf]
     - name: Add additional grafana configurations
-      ansible.builtin.ini_file:
+      community.general.ini_file:
         path: /etc/grafana/grafana.ini
         section: "{{ item.section }}"
         option: "{{ item.option }}"
@@ -72,7 +81,7 @@
       ansible.builtin.template:
         src: "{{ item }}.j2"
         dest: /etc/grafana/{{ item }}
-        mode: 0440
+        mode: "0440"
         owner: root
         group: grafana
       loop: "{{ grafana_ldap_conf_file }}"
@@ -80,14 +89,22 @@
       when: grafana_ldap_auth
       tags: [grafana, grafana_conf, grafana_ldap]
     - name: Create the local dashboards directory
-      file: dest=/var/lib/grafana/dashboards state=directory mode=0755 owner=grafana group=grafana
+      ansible.builtin.file:
+        dest: /var/lib/grafana/dashboards
+        state: directory
+        mode: "0755"
+        owner: grafana
+        group: grafana
 
     - name: Install additional plugins, if any
-      grafana_plugin:
+      community.grafana.grafana_plugin:
         name: "{{ item.name }}"
         state: "{{ item.state | default('present') }}"
         grafana_repo: "{{ item.repo | default('https://grafana.com/api/plugins') }}"
       loop: "{{ grafana_additional_plugins }}"
       tags: [grafana, grafana_plugins]
     - name: Ensure that grafana is enabled and running
-      service: name=grafana-server state=started enabled=yes
+      ansible.builtin.service:
+        name: grafana-server
+        state: started
+        enabled: true