Initial Ansible automation for hobbs.farm infrastructure

Complete IaC covering:
- 14 roles: common, docker, traefik, vaultwarden, monitoring, media, matrix,
  home_assistant, frigate, adguard, gitea, semaphore, openclaw, security, backup
- Inventory for all hosts (Peggy, Bart, Yoda, NAS, Firewalla)
- Stack playbooks: core-infrastructure, monitoring, media, communication,
  automation, smarthome, security-hardening
- Maintenance playbooks: update-containers, backup, health-check
- Production Docker Compose templates with Traefik labels
- Security hardening (sysctl, auditd, UFW, fail2ban)
- Automated backups with retention policy

roles/home_assistant/defaults/main.yml

@@ -0,0 +1,12 @@
+---
+smarthome_compose_dir: "{{ docker_compose_base }}/smarthome"
+ha_data_dir: /data/homeassistant
+esphome_data_dir: /data/esphome
+mosquitto_data_dir: /data/mosquitto
+
+ha_image: "ghcr.io/home-assistant/home-assistant:stable"
+esphome_image: "ghcr.io/esphome/esphome:latest"
+mosquitto_image: "eclipse-mosquitto:latest"
+
+ha_host: "ha.{{ domain }}"
+esphome_host: "esphome.{{ domain }}"

roles/home_assistant/tasks/main.yml

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+---
+- name: Create smart home directories
+  ansible.builtin.file:
+    path: "{{ item }}"
+    state: directory
+    owner: glyptic
+    group: docker
+    mode: "0755"
+  loop:
+    - "{{ smarthome_compose_dir }}"
+    - "{{ ha_data_dir }}"
+    - "{{ esphome_data_dir }}"
+    - "{{ mosquitto_data_dir }}"
+    - "{{ mosquitto_data_dir }}/config"
+    - "{{ mosquitto_data_dir }}/data"
+    - "{{ mosquitto_data_dir }}/log"
+  tags: [smarthome, homeassistant]
+
+- name: Deploy smart home compose file
+  ansible.builtin.template:
+    src: docker-compose.yml.j2
+    dest: "{{ smarthome_compose_dir }}/docker-compose.yml"
+    owner: glyptic
+    group: docker
+    mode: "0644"
+  tags: [smarthome, homeassistant]
+
+- name: Start smart home stack
+  community.docker.docker_compose_v2:
+    project_src: "{{ smarthome_compose_dir }}"
+    state: present
+  tags: [smarthome, homeassistant]

roles/home_assistant/templates/docker-compose.yml.j2

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+services:
+  homeassistant:
+    image: {{ ha_image }}
+    container_name: homeassistant
+    restart: unless-stopped
+    privileged: true
+    environment:
+      TZ: {{ timezone }}
+    volumes:
+      - {{ ha_data_dir }}:/config
+    labels:
+      traefik.enable: "true"
+      traefik.http.routers.ha.rule: "Host(`{{ ha_host }}`)"
+      traefik.http.routers.ha.entrypoints: websecure
+      traefik.http.routers.ha.tls.certresolver: cloudflare
+      traefik.http.services.ha.loadbalancer.server.port: "8123"
+    networks:
+      - {{ docker_network_name }}
+
+  esphome:
+    image: {{ esphome_image }}
+    container_name: esphome
+    restart: unless-stopped
+    environment:
+      TZ: {{ timezone }}
+    volumes:
+      - {{ esphome_data_dir }}:/config
+    labels:
+      traefik.enable: "true"
+      traefik.http.routers.esphome.rule: "Host(`{{ esphome_host }}`)"
+      traefik.http.routers.esphome.entrypoints: websecure
+      traefik.http.routers.esphome.tls.certresolver: cloudflare
+      traefik.http.services.esphome.loadbalancer.server.port: "6052"
+    networks:
+      - {{ docker_network_name }}
+
+  mosquitto:
+    image: {{ mosquitto_image }}
+    container_name: mosquitto
+    restart: unless-stopped
+    ports:
+      - "1883:1883"
+    volumes:
+      - {{ mosquitto_data_dir }}/config:/mosquitto/config
+      - {{ mosquitto_data_dir }}/data:/mosquitto/data
+      - {{ mosquitto_data_dir }}/log:/mosquitto/log
+    networks:
+      - {{ docker_network_name }}
+
+networks:
+  {{ docker_network_name }}:
+    external: true