Add Mosquitto pub-sub broker to IIAB

roles/6-generic-apps/tasks/main.yml

@@ -51,6 +51,12 @@
   when: wordpress_install
   tags: wordpress
 
+- name: MOSQUITTO
+  include_role:
+    name: mosquitto
+  when: mosquitto_install
+  tags: mosquitto
+
 - name: Recording STAGE 6 HAS COMPLETED ====================
   lineinfile:
     dest: "{{ iiab_env_file }}"

roles/mosquitto/README.rst

@@ -0,0 +1,3 @@
+Adds the mosquitto pub-sub broker to the iiab. 
+
+Roughly follows this guide: https://www.digitalocean.com/community/tutorials/how-to-install-and-secure-the-mosquitto-mqtt-messaging-broker-on-ubuntu-16-04

roles/mosquitto/defaults/main.yml

@@ -0,0 +1,4 @@
+mosquitto_install: True
+mosquitto_enabled: False
+mosquitto_user: admin
+mosquitto_password: g0adm1n

roles/mosquitto/tasks/main.yml

@@ -0,0 +1,50 @@
+- name: Install Mosquitto
+  package:  name={{ item }} 
+            state=present
+  with_items:
+    - mosquitto
+    - mosquitto-clients
+  when: mosquitto_install
+  tags: download
+
+- name: Disable mosquitto
+  service:
+    name: mosquitto
+    enabled: no
+
+- name: Stop mosquitto
+  service:
+    name: mosquitto
+    state: stopped
+
+- name: Create mosquitto passwd file
+  file:
+    path: /etc/mosquitto/passwd
+    state: touch
+    mode: "u=rw,g=r,o=r"
+
+- name: Create mosquitto username/password
+  shell: mosquitto_passwd -b /etc/mosquitto/passwd "{{ mosquitto_user }}" "{{ mosquitto_password  }}"
+
+- name: Create mosquitto config file
+  template:
+    backup: yes
+    src: "{{ item.src }}"
+    dest: "{{ item.dest }}"
+    owner: root
+    group: root
+    mode: "{{ item.mode }}"
+  with_items:
+    - { src: 'websockets.conf.j2' , dest: '/etc/mosquitto/conf.d/websockets.conf', mode: '0755' }
+
+- name: Enable mosquitto
+  service:
+    name: mosquitto
+    enabled: yes
+  when: mosquitto_enabled
+
+- name: Start mosquitto
+  service:
+    name: mosquitto
+    state: started
+  when: mosquitto_enabled

roles/mosquitto/templates/websockets.conf.j2

@@ -0,0 +1,3 @@
+listener 1883
+allow_anonymous false
+password_file /etc/mosquitto/passwd