Initialise repository structure and placeholder files. Generic functionality works i guess, need to come up with a better solution for compose templates

roles/grafana_renderer/defaults/main.yml

@@ -0,0 +1,13 @@
+---
+grafana_renderer_name: grafana-renderer
+grafana_renderer_dir: /srv/docker/grafana-renderer
+grafana_renderer_image: grafana/grafana-image-renderer:latest
+grafana_renderer_routing_mode: host
+grafana_renderer_env:
+  ENABLE_METRICS: "true"
+grafana_renderer_directories:
+  - "{{ grafana_renderer_dir }}"
+grafana_renderer_volumes: []
+grafana_renderer_ports:
+  - { host: 8081, container: 8081, protocol: tcp }
+