feat: add option to use custom datasource template files

defaults/main.yml

@@ -55,3 +55,6 @@ grafana_log_mode:
 grafana_log_level: info
 
 grafana_log_providers: []
+
+grafana_datasource_files:
+  - grafana/datasources/*.yml.j2

tasks/setup.yml

@@ -43,6 +43,18 @@
         mode: 0640
       notify: __grafana_restart
 
+    - name: Copy custom grafana datasource files
+      template:
+        src: "{{ item }}"
+        dest: /etc/grafana/provisioning/datasources/{{ item | basename | splitext | first }}
+        owner: root
+        group: grafana
+        mode: 0640
+      with_fileglob: "{{ grafana_template_files }}"
+      loop_control:
+        label: "{{ item | basename | splitext | first }}"
+      notify: __grafana_restart
+
     - name: Ensure Grafana is up and running
       service:
         name: grafana-server