Restructure into one folder per private repo/host, not a flat Docker/ dump

rocky-docker-lxc/, caddy-vm/, monitoring-vm/ (was missing entirely -
Grafana+Loki+Prometheus stack, refreshed and CA mount stripped same as
everything else), and automation/{ansible,automation-vm,iac}/ for the
three repos that live on the automation VM. Hawser is genuinely
deployed on all three of caddy-vm/monitoring-vm/automation-vm so it's
duplicated in each rather than picking one canonical home.

Old Ansible/ and "Infrastrucutre as Code/" content moved under
automation/ansible/old-playbooks and automation/iac/old-content as-is
for now - contents still need refreshing against the current repos and
a per-folder README, that's the next pass.

rocky-docker-lxc/Kodi-MariaDB/docker-compose.yaml

@@ -0,0 +1,32 @@
+services:
+  mariadb:
+    image: lscr.io/linuxserver/mariadb:latest
+    container_name: kodi-mariadb
+    environment:
+      - PUID=${PUID}
+      - PGID=${PGID}
+      - TZ=${TZ}
+      - MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD}
+      - MYSQL_USER=${MYSQL_USER}
+      - MYSQL_PASSWORD=${MYSQL_PASSWORD}
+    volumes:
+      - /path/to/kodi-mariadb:/config
+    ports:
+      - ${HTTP_PORT}:3306
+    restart: unless-stopped
+    healthcheck:
+      test:
+        [
+          "CMD-SHELL",
+          "mysqladmin ping -h 127.0.0.1 -u root -p${MYSQL_ROOT_PASSWORD} --silent",
+        ]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+      start_period: 30s
+    networks:
+      - media-net
+
+networks:
+  media-net:
+    external: true