playbooks/iot/playbook.yml

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# DO Community Playbooks: Docker
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---
- hosts: all
  become: true
  vars_files:
    - vars/default.yml

  tasks:
    - getent:
        database: passwd
        key: "{{ mqtt_user }}"
        split: ":"

    # - name: "{{ getent_passwd[user][1] }} : {{ getent_passwd[user][2] }}"
    #   docker_image:
    #     name: "{{ mqtt_imag }}"
    #     source: pull
    #     force_source: yes

    - name: Pull Mosquitto image
      docker_image:
        name: "{{ mqtt_image }}"
        source: pull
        force_source: yes

    - name: Ensure Mosquitto Directory exists
      file:
          path: "{{ mqtt_directory }}"
          state: directory
          group: 0 # "{{ mqtt_user }}"
          owner: 0 # "{{ mqtt_user }}"
          mode: 0755

    - name: Ensure Mosquitto Config Directory exists
      file:
          path: "{{ mqtt_directory }}/config"
          state: directory
          group: 0 # "{{ mqtt_user }}"
          owner: 0 # "{{ mqtt_user }}"
          mode: 0755

    - name: Copy the Mosquitto conf file
      template:
        src: "files/mosquitto.conf"
        dest: "{{ mqtt_directory }}/config/mosquitto.conf"
        group: 1883 # "{{ mqtt_user }}"
        owner: 1883 # "{{ mqtt_user }}"
        mode: 0646

    # - name: Check if Mosquitto passwd file exists
    #   stat: path="{{ mqtt_directory }}/config/passwd"
    #   register: status

    - name: Ensure Mosquitto passwd file exists
      template:
          src: "files/passwd"
          dest: "{{ mqtt_directory }}/config/passwd"
          group: 1883 # "{{ mqtt_user }}"
          owner: 1883 # "{{ mqtt_user }}"
          mode: 0646

    - name: Encrypt the docker file
      command: docker exec -i mosquitto mosquitto_passwd -U /mosquitto/config/passwd

    - name: Ensure Mosquitto Log Directory exists
      file:
          path: "{{ mqtt_directory }}/log"
          state: directory
          group: 0 # "{{ mqtt_user }}"
          owner: 0 # "{{ mqtt_user }}"
          mode: 0755

    - name: Ensure Mosquitto log file exists
      file:
          path: "{{ mqtt_directory }}/log/mosquitto.log"
          state: touch
          group: 0 # "{{ mqtt_user }}"
          owner: 0 # "{{ mqtt_user }}"
          mode: 0646

    - name: Create Mosquitto container
      docker_container:
        name: "{{ mqtt_container }}"
        image: "{{ mqtt_image }}"
        state: started
        restart_policy: "unless-stopped"
        # user: 0:0 # "{{ getent_passwd[mqtt_user][1] }}:{{ getent_passwd[mqtt_user][2] }}"
        published_ports:
          - 127.0.0.1:9001:9001
          - 1883:1883
        volumes:
          - "{{ mqtt_directory }}/config:/mosquitto/config"
          - "{{ mqtt_directory }}/data:/mosquitto/data"
          - "{{ mqtt_directory }}/log:/mosquitto/log"

    - getent:
        database: passwd
        key: "{{ user }}"
        split: ":"

    - name: Pull InfluxDB image
      docker_image:
        name: "{{ influx_image }}"
        source: pull
        force_source: yes

    - name: Ensure Influx Directory exists
      file:
          path: "{{ influx_directory }}"
          state: directory
          group: "{{ user }}"
          owner: "{{ user }}"
          mode: 0755

    - name: Ensure Influx Data Directory exists
      file:
          path: "{{ influx_directory }}/data"
          state: directory
          group: "{{ user }}"
          owner: "{{ user }}"
          mode: 0755

    - name: Ensure Influx Config Directory exists
      file:
          path: "{{ influx_directory }}/config"
          state: directory
          group: "{{ user }}"
          owner: "{{ user }}"
          mode: 0755

    - name: Create InfluxDB container
      docker_container:
        name: "{{ influx_container }}"
        image: "{{ influx_image }}"
        state: started
        restart_policy: "unless-stopped"
        user: "{{ getent_passwd[user][1] }}:{{ getent_passwd[user][2] }}"
        published_ports:
          - 127.0.0.1:8086:8086
        volumes:
          - "{{ influx_directory }}/data:/var/lib/influxdb2"
          - "{{ influx_directory }}/config:/etc/influxdb2"

    - name: Pull Node Red image
      docker_image:
        name: "{{ nodered_image }}"
        source: pull
        force_source: yes

    - name: Ensure Node Red Directory exists
      file:
          path: "{{ nodered_directory }}"
          state: directory
          group: "{{ user }}"
          owner: "{{ user }}"
          mode: 0755

    - name: Create Node Red container
      docker_container:
        name: "{{ nodered_container }}"
        image: "{{ nodered_image }}"
        state: started
        restart_policy: "unless-stopped"
        user: "{{ getent_passwd[user][1] }}:{{ getent_passwd[user][2] }}"
        env:
          TZ: "Asia/Kolkata"
        links:
          - "{{ mqtt_container }}:mqtt"
          - "{{ influx_container }}:influx"
        published_ports:
          - 127.0.0.1:1880:1880
        volumes:
          - "{{ nodered_directory }}:/data"

    - name: Pull Grafana image
      docker_image:
        name: "{{ grafana_image }}"
        source: pull
        force_source: yes

    - name: Ensure Grafana Directory exists
      file:
          path: "{{ grafana_directory }}"
          state: directory
          group: "{{ user }}"
          owner: "{{ user }}"
          mode: 0755

    - name: Create Grafana container
      docker_container:
        name: "{{ grafana_container }}"
        image: "{{ grafana_image }}"
        state: started
        restart_policy: "unless-stopped"
        user: "{{ getent_passwd[user][1] }}:{{ getent_passwd[user][2] }}"
        env:
          GF_SERVER_ROOT_URL: "https://{{ http_host }}"
          GF_INSTALL_PLUGINS: "grafana-clock-panel, grafana-simple-json-datasource, natel-discrete-panel, briangann-gauge-panel, vonage-status-panel, neocat-cal-heatmap-panel, natel-plotly-panel"
        links:
          - "{{ influx_container }}:influx"
        published_ports:
          - 127.0.0.1:3005:3000
        volumes:
          - "{{ grafana_directory }}:/var/lib/grafana"

    - name: Check if Nginx conf file exists
      stat: path="/etc/nginx/sites-available/{{ http_conf }}"
      register: status

    - name: No need to reload Nginx
      debug: msg= {{ "No need to reload Nginx as sites-available entries have already been created" }}

    - name: Set Nginx conf file
      when: status.stat.exists == false
      template:
        src: "files/nginx.conf.j2"
        dest: "/etc/nginx/sites-available/{{ http_conf }}"

    - name: Enable new site
      when: status.stat.exists == false
      file:
        src: "/etc/nginx/sites-available/{{ http_conf }}"
        dest: "/etc/nginx/sites-enabled/{{ http_conf }}"
        state: link
      notify: Reload Nginx

  handlers:
    - name: Reload Nginx
      service:
        name: nginx
        state: reloaded