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/frigate/defaults/main.yml

@@ -0,0 +1,6 @@
+---
+frigate_compose_dir: /opt/frigate
+frigate_config_dir: /opt/frigate/config
+frigate_media_dir: /media/frigate
+frigate_image: "ghcr.io/blakeblackshear/frigate:stable"
+frigate_host: "frigate.{{ domain }}"

roles/frigate/tasks/main.yml

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+---
+- name: Create Frigate directories
+  ansible.builtin.file:
+    path: "{{ item }}"
+    state: directory
+    owner: glyptic
+    group: docker
+    mode: "0755"
+  loop:
+    - "{{ frigate_compose_dir }}"
+    - "{{ frigate_config_dir }}"
+    - "{{ frigate_media_dir }}"
+  tags: [frigate]
+
+- name: Deploy Frigate compose file
+  ansible.builtin.template:
+    src: docker-compose.yml.j2
+    dest: "{{ frigate_compose_dir }}/docker-compose.yml"
+    owner: glyptic
+    group: docker
+    mode: "0644"
+  tags: [frigate]
+
+- name: Start Frigate
+  community.docker.docker_compose_v2:
+    project_src: "{{ frigate_compose_dir }}"
+    state: present
+  tags: [frigate]

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

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+services:
+  frigate:
+    image: {{ frigate_image }}
+    container_name: frigate
+    restart: unless-stopped
+    privileged: true
+    shm_size: "256mb"
+    ports:
+      - "5000:5000"
+      - "8554:8554"
+      - "8555:8555/tcp"
+      - "8555:8555/udp"
+    volumes:
+      - {{ frigate_config_dir }}:/config
+      - {{ frigate_media_dir }}:/media/frigate
+      - /etc/localtime:/etc/localtime:ro
+    environment:
+      FRIGATE_RTSP_PASSWORD: "{{ vault_frigate_rtsp_password | default('changeme') }}"
+    labels:
+      traefik.enable: "true"
+      traefik.http.routers.frigate.rule: "Host(`{{ frigate_host }}`)"
+      traefik.http.routers.frigate.entrypoints: websecure
+      traefik.http.routers.frigate.tls.certresolver: cloudflare
+      traefik.http.services.frigate.loadbalancer.server.port: "5000"
+    networks:
+      - {{ docker_network_name }}
+
+networks:
+  {{ docker_network_name }}:
+    external: true