IOT Playbook updated with docker networks and caddy.

iot/roles/network/tasks/main.yaml

@@ -0,0 +1,9 @@
+---
+# Tasks for Mosquitto role
+- name: Ensure 'iot' Docker network exists
+  docker_network:
+    name: "{{ docker_network }}"
+    state: present
+    connected:
+      - caddy
+    appends: yes