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

roles/valkey/defaults/main.yml

@@ -0,0 +1,14 @@
+---
+valkey_name: valkey
+valkey_dir: /srv/docker/valkey
+valkey_image: valkey/valkey:8-alpine
+valkey_routing_mode: host
+valkey_env: {}
+valkey_directories:
+  - "{{ valkey_dir }}"
+  - /srv/data/valkey
+valkey_volumes:
+  - /srv/data/valkey:/data
+valkey_ports:
+  - { host: 6379, container: 6379, protocol: tcp }
+