fix linter errors

roles/prometheus/tasks/configure.yml

@@ -3,19 +3,19 @@
   notify: "(Re)start Prometheus service"
   ansible.builtin.copy:
     src: "{{ item }}"
-    dest: "{{ config_dir }}/{{ item | basename }}"
+    dest: "{{ prometheus_config_dir }}/{{ item | basename }}"
     owner: "{{ prometheus_user }}"
     group: "{{ prometheus_group }}"
     mode: "0660"
   with_fileglob:
-    - "{{ config_source_dir }}/*.yml"
+    - "{{ prometheus_config_source_dir }}/*.yml"
 
 - name: "Copy alert rules"
   notify: "(Re)start Prometheus service"
   when: alertrules_source_dir is defined
   ansible.builtin.copy:
     src: "{{ item }}"
-    dest: "{{ config_dir }}/{{ item | basename }}"
+    dest: "{{ prometheus_config_dir }}/{{ item | basename }}"
     owner: "{{ prometheus_user }}"
     group: "{{ prometheus_group }}"
     mode: "0660"

roles/prometheus/tasks/install.yml

@@ -37,9 +37,9 @@
         group: "{{ prometheus_group }}"
         mode: "0755"
       with_items:
-        - "{{ config_dir }}"
+        - "{{ prometheus_config_dir }}"
         - "{{ prometheus_dir }}"
-        - "{{ db_dir }}"
+        - "{{ prometheus_db_dir }}"
 
     - name: "Download Prometheus binary"
       ansible.builtin.get_url: