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/traefik/defaults/main.yml

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+---
+traefik_version: "v3.1"
+traefik_image: "traefik:{{ traefik_version }}"
+traefik_compose_dir: "{{ docker_compose_base }}/core-infrastructure"
+traefik_data_dir: /data/traefik
+traefik_acme_email: "{{ vault_acme_email }}"
+cloudflare_api_token: "{{ vault_cloudflare_api_token }}"
+traefik_log_level: INFO
+traefik_dashboard_enabled: true
+traefik_dashboard_host: "traefik.{{ domain }}"

roles/traefik/handlers/main.yml

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+---
+- name: Restart traefik stack
+  community.docker.docker_compose_v2:
+    project_src: "{{ traefik_compose_dir }}"
+    state: present
+    recreate: always

roles/traefik/tasks/main.yml

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+---
+- name: Create Traefik directories
+  ansible.builtin.file:
+    path: "{{ item }}"
+    state: directory
+    owner: glyptic
+    group: docker
+    mode: "0755"
+  loop:
+    - "{{ traefik_compose_dir }}"
+    - "{{ traefik_data_dir }}"
+    - "{{ traefik_data_dir }}/acme"
+    - "{{ traefik_data_dir }}/dynamic"
+  tags: [traefik]
+
+- name: Ensure acme.json exists with correct permissions
+  ansible.builtin.file:
+    path: "{{ traefik_data_dir }}/acme/acme.json"
+    state: touch
+    owner: root
+    group: root
+    mode: "0600"
+    modification_time: preserve
+    access_time: preserve
+  tags: [traefik]
+
+- name: Deploy Traefik compose file
+  ansible.builtin.template:
+    src: docker-compose.yml.j2
+    dest: "{{ traefik_compose_dir }}/docker-compose.yml"
+    owner: glyptic
+    group: docker
+    mode: "0644"
+  notify: Restart traefik stack
+  tags: [traefik]
+
+- name: Start Traefik stack
+  community.docker.docker_compose_v2:
+    project_src: "{{ traefik_compose_dir }}"
+    state: present
+  tags: [traefik]

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

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+services:
+  traefik:
+    image: {{ traefik_image }}
+    container_name: traefik
+    restart: unless-stopped
+    security_opt:
+      - no-new-privileges:true
+    ports:
+      - "80:80"
+      - "443:443"
+    environment:
+      CF_DNS_API_TOKEN: {{ cloudflare_api_token }}
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock:ro
+      - {{ traefik_data_dir }}/acme/acme.json:/acme.json
+      - {{ traefik_data_dir }}/dynamic:/dynamic
+    command:
+      - --api.dashboard={{ traefik_dashboard_enabled | lower }}
+      - --log.level={{ traefik_log_level }}
+      - --providers.docker=true
+      - --providers.docker.exposedbydefault=false
+      - --providers.docker.network={{ docker_network_name }}
+      - --providers.file.directory=/dynamic
+      - --providers.file.watch=true
+      - --entrypoints.web.address=:80
+      - --entrypoints.web.http.redirections.entrypoint.to=websecure
+      - --entrypoints.websecure.address=:443
+      - --certificatesresolvers.cloudflare.acme.dnschallenge=true
+      - --certificatesresolvers.cloudflare.acme.dnschallenge.provider=cloudflare
+      - --certificatesresolvers.cloudflare.acme.email={{ traefik_acme_email }}
+      - --certificatesresolvers.cloudflare.acme.storage=/acme.json
+      - --certificatesresolvers.cloudflare.acme.dnschallenge.resolvers=1.1.1.1:53,1.0.0.1:53
+    labels:
+      traefik.enable: "true"
+      traefik.http.routers.traefik.rule: "Host(`{{ traefik_dashboard_host }}`)"
+      traefik.http.routers.traefik.entrypoints: websecure
+      traefik.http.routers.traefik.tls.certresolver: cloudflare
+      traefik.http.routers.traefik.tls.domains[0].main: "{{ domain }}"
+      traefik.http.routers.traefik.tls.domains[0].sans: "*.{{ domain }}"
+      traefik.http.routers.traefik.service: api@internal
+    networks:
+      - {{ docker_network_name }}
+
+networks:
+  {{ docker_network_name }}:
+    external: true