Add zigbee2mqtt role and playbook

playbooks/roles/zigbee2mqtt/files/zigbee2mqtt.service

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+[Unit]
+Description=zigbee2mqtt
+After=network.target
+
+[Service]
+Environment=ZIGBEE2MQTT_DATA=/home/zigbee2mqtt/zigbee2mqtt_data
+Environment=NODE_ENV=production
+ExecStart=/usr/bin/npm start
+WorkingDirectory=/opt/zigbee2mqtt
+StandardOutput=inherit
+# Or use StandardOutput=null if you don't want Zigbee2MQTT messages filling syslog, for more options see systemd.exec(5)
+StandardError=inherit
+Restart=always
+RestartSec=10s
+User=zigbee2mqtt
+
+[Install]
+WantedBy=multi-user.target

playbooks/roles/zigbee2mqtt/handlers/main.yml

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+- name: Restart zigbee2mqtt
+  ansible.builtin.systemd:
+    name: zigbee2mqtt
+    state: restarted
+- name: Reload systemd-daemon and restart zigbee2mqtt
+  ansible.builtin.systemd:
+    name: zigbee2mqtt
+    state: restarted
+    daemon_reload: true

playbooks/roles/zigbee2mqtt/meta/argument_specs.yml

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+---
+argument_specs:
+  main:
+    options:
+      zigbee2mqtt__version:
+        description: zigbee2mqtt version to install
+        type: str
+        required: true
+      zigbee2mqtt__config:
+        description: Configuration file content
+        type: str
+        required: true

playbooks/roles/zigbee2mqtt/meta/main.yml

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+---
+dependencies:
+  - role: distribution_check
+    vars:
+      distribution_check__supported_distributions:
+        - name: Debian
+          versions:
+            - "11"
+  - role: nodejs
+    vars:
+      nodejs__major_version: 16

playbooks/roles/zigbee2mqtt/tasks/main.yml

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+- name: Ensure acl is installed
+  ansible.builtin.apt:
+    name: acl
+- name: Ensure git is installed
+  ansible.builtin.apt:
+    name: git
+- name: Ensure zigbee2mqtt user exists
+  ansible.builtin.user:
+    name: zigbee2mqtt
+    groups:
+      - zigbee2mqtt
+      - dialout
+    group: zigbee2mqtt
+- name: Ensure installation dirrectory exists
+  ansible.builtin.file:
+    dest: /opt/zigbee2mqtt
+    state: directory
+    mode: 0755
+    owner: zigbee2mqtt
+    group: zigbee2mqtt
+- name: Ensure zigbee2mqtt repository is cloned
+  become_user: zigbee2mqtt
+  ansible.builtin.git:
+    repo: https://github.com/Koenkk/zigbee2mqtt.git
+    depth: 1
+    dest: /opt/zigbee2mqtt
+    version: "{{ zigbee2mqtt__version }}"
+  notify: Restart zigbee2mqtt
+- name: Ensure npm dependencies are installed
+  become_user: zigbee2mqtt
+  community.general.npm:
+    path: /opt/zigbee2mqtt
+    ci: true
+  changed_when: false # installs packages according to package-lock.json, but always reports a change
+- name: Ensure custom zigbee2mqtt data directory exists
+  ansible.builtin.file:
+    dest: /home/zigbee2mqtt/zigbee2mqtt_data
+    state: directory
+    mode: 0755
+    owner: zigbee2mqtt
+    group: zigbee2mqtt
+- name: Ensure configuration file is deployed
+  ansible.builtin.copy:
+    content: "{{ zigbee2mqtt__config }}"
+    dest: /home/zigbee2mqtt/zigbee2mqtt_data/configuration.yaml
+    mode: 0640
+    owner: zigbee2mqtt
+    group: zigbee2mqtt
+  notify: Restart zigbee2mqtt
+- name: Ensure zigbee2mqtt service file is deployed
+  ansible.builtin.copy:
+    src: zigbee2mqtt.service
+    dest: /etc/systemd/system/zigbee2mqtt.service
+    mode: 0644
+    owner: root
+    group: root
+  notify: Reload systemd-daemon and restart zigbee2mqtt
+- name: Ensure zigbee2mqtt is enabled and started
+  ansible.builtin.systemd:
+    service: zigbee2mqtt
+    enabled: true
+    state: started