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/matrix/defaults/main.yml

@@ -0,0 +1,7 @@
+---
+matrix_compose_dir: "{{ docker_compose_base }}/communication"
+synapse_data_dir: /data/synapse
+synapse_image: "matrixdotorg/synapse:latest"
+matrix_host: "matrix.{{ domain }}"
+matrix_server_name: "{{ domain }}"
+matrix_shared_secret: "{{ vault_matrix_shared_secret }}"

roles/matrix/tasks/main.yml

@@ -0,0 +1,27 @@
+---
+- name: Create Matrix directories
+  ansible.builtin.file:
+    path: "{{ item }}"
+    state: directory
+    owner: glyptic
+    group: docker
+    mode: "0755"
+  loop:
+    - "{{ matrix_compose_dir }}"
+    - "{{ synapse_data_dir }}"
+  tags: [matrix, communication]
+
+- name: Deploy Matrix compose file
+  ansible.builtin.template:
+    src: docker-compose.yml.j2
+    dest: "{{ matrix_compose_dir }}/docker-compose.yml"
+    owner: glyptic
+    group: docker
+    mode: "0644"
+  tags: [matrix, communication]
+
+- name: Start Matrix stack
+  community.docker.docker_compose_v2:
+    project_src: "{{ matrix_compose_dir }}"
+    state: present
+  tags: [matrix, communication]

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

@@ -0,0 +1,22 @@
+services:
+  synapse:
+    image: {{ synapse_image }}
+    container_name: synapse
+    restart: unless-stopped
+    environment:
+      SYNAPSE_SERVER_NAME: {{ matrix_server_name }}
+      SYNAPSE_REPORT_STATS: "no"
+    volumes:
+      - {{ synapse_data_dir }}:/data
+    labels:
+      traefik.enable: "true"
+      traefik.http.routers.synapse.rule: "Host(`{{ matrix_host }}`)"
+      traefik.http.routers.synapse.entrypoints: websecure
+      traefik.http.routers.synapse.tls.certresolver: cloudflare
+      traefik.http.services.synapse.loadbalancer.server.port: "8008"
+    networks:
+      - {{ docker_network_name }}
+
+networks:
+  {{ docker_network_name }}:
+    external: true