Merge pull request '🔧 Add volume for grafana configuration' (!114) from grafana-cfg into master

Reviewed-on: https://gitea.n39.eu/Netz39_Admin/netz39-infra-ansible/pulls/114
Reviewed-by: dkdent <dkdent@netz39.de>

host-pottwal.yml

@@ -393,6 +393,8 @@
         - path: "{{ data_dir }}/grafana/data"
           owner: 472
           mode: "0755"
+        - path: "{{ data_dir }}/grafana/etc"
+          mode: "0755"
 
     - name: Ensure container for grafana is running
       docker_container:
@@ -402,12 +404,13 @@
           - "127.0.0.1:{{ grafana_host_port }}:3000"
         volumes:
           - "{{ data_dir }}/grafana/data:/var/lib/grafana"
+          - "{{ data_dir }}/grafana/etc:/etc/grafana"
         env:
           TZ: "{{ timezone }}"
           GF_SECURITY_ADMIN_PASSWORD: "{{ grafana_admin_password }}"
           GF_USERS_ALLOW_SIGN_UP: "false"
           GF_INSTALL_PLUGINS: "flant-statusmap-panel,ae3e-plotly-panel"
-
+          
     - name: Setup proxy site grafana.n39.eu
       include_role:
         name: setup_http_site_proxy