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CentOS7x_Install-Mosquitto-playbook.yml
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CentOS7x_Install-Mosquitto-playbook.yml
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---
################################################################################
# description: Installs Mosquitto on CentOS7x
# usage: ansible-playbook CentOS7x_Install-Mosquitto-playbook.yml --extra-vars 'HostOrGroup=YourServerOrGroupNameGoesHere'
# author: Ernest G. Wilson II <ErnestGWilsonII@gmail.com> (https://github.com/ernestgwilsonii)
# license: MIT
################################################################################
# Ansible Playbook options
# REF: http://docs.ansible.com/ansible/playbooks.html
#####################################################
- name: Install Mosquitto on CentOS7x
hosts: "{{ HostOrGroup|default ('FATAL ERROR --> HostOrGroup NOT SET! You must specify either a Host or a Group name!') }}"
serial: "100%"
gather_facts: False
tasks:
# Install or configure repository used on the OS by yum
# REF: https://docs.ansible.com/ansible/yum_repository_module.html
##################################################################
# /etc/yum.repos.d/mosquitto.repo
# https://mosquitto.org/download/
- name: Install repository Mosquitto
yum_repository:
name: mosquitto
description: Mosquitto Repository
file: mosquitto
baseurl: http://download.opensuse.org/repositories/home:/oojah:/mqtt/CentOS_CentOS-7/
enabled: yes
gpgcheck: yes
gpgkey: http://download.opensuse.org/repositories/home:/oojah:/mqtt/CentOS_CentOS-7//repodata/repomd.xml.key
# Install yum packages (listed in alphabetical order)
# REF: http://docs.ansible.com/ansible/yum_module.html
######################################################
- name: Install mosquitto
yum:
name: http://download.opensuse.org/repositories/home:/oojah:/mqtt/CentOS_CentOS-7/x86_64/mosquitto-1.4.10-3.1.x86_64.rpm
state: present
- name: Install libmosquitto1
yum:
name: http://download.opensuse.org/repositories/home:/oojah:/mqtt/CentOS_CentOS-7/x86_64/libmosquitto1-1.4.10-3.1.x86_64.rpm
state: present
- name: Install mosquitto-clients
yum:
name: http://download.opensuse.org/repositories/home:/oojah:/mqtt/CentOS_CentOS-7/x86_64/mosquitto-clients-1.4.10-3.1.x86_64.rpm
state: present
- name: Install libmosquitto-devel
yum:
name: http://download.opensuse.org/repositories/home:/oojah:/mqtt/CentOS_CentOS-7/x86_64/libmosquitto-devel-1.4.10-3.1.x86_64.rpm
state: present
- name: Install libmosquittopp1
yum:
name: http://download.opensuse.org/repositories/home:/oojah:/mqtt/CentOS_CentOS-7/x86_64/libmosquittopp1-1.4.10-3.1.x86_64.rpm
state: present
- name: Install libmosquittopp-devel
yum:
name: http://download.opensuse.org/repositories/home:/oojah:/mqtt/CentOS_CentOS-7/x86_64/libmosquitto-devel-1.4.10-3.1.x86_64.rpm
state: present
# Restart firewalld to make sure it is running OK before changing any rules
# REF: http://docs.ansible.com/ansible/service_module.html
##########################################################
- name: Ensure the firewalld service is enabled and re-started before changing any rules
service:
name: firewalld
enabled: yes
state: restarted
# Update the firewalld configuration
# REF: http://docs.ansible.com/ansible/firewalld_module.html
############################################################
- name: Update firewall to allow port TCP 1883 for incoming mosquitto connections
firewalld:
port: 1883/tcp
permanent: true
immediate: yes
state: enabled
zone: public
- name: Update firewall to allow port TCP 8883 for incoming encrypted mosquitto connections
firewalld:
port: 8883/tcp
permanent: true
immediate: yes
state: enabled
zone: public
- name: Update firewall to allow port TCP 9001 for incoming websockets mosquitto connections
firewalld:
port: 9001/tcp
permanent: true
immediate: yes
state: enabled
zone: public
- name: Update firewall to allow port TCP 9883 for incoming encrypted websockets mosquitto connections
firewalld:
port: 9883/tcp
permanent: true
immediate: yes
state: enabled
zone: public
# command - Executes a command on a remote node
# REF: http://docs.ansible.com/ansible/command_module.html
##########################################################
- name: Get the hostname from the remote OS and use it to set a variable
command: hostname
register: hostname
- debug: msg="Remote hostname is {{hostname.stdout}}"
# Use the copy module to copy various files into place
# REF: http://docs.ansible.com/ansible/copy_module.html
#######################################################
# /usr/lib/systemd/system/mosquitto.service
- name: Copy mosquitto.service from Ansible files/Mosquitto/mosquitto.service to Mosquitto remote /usr/lib/systemd/system/mosquitto.service
copy:
src=files/Mosquitto/mosquitto.service
dest=/usr/lib/systemd/system/mosquitto.service
owner=root
group=root
mode=0400
- name: Copy and decrypt ca.pem from Ansible files/Mosquitto/certs/ca.pem to Mosquitto remote /etc/mosquitto/certs/ca.pem
copy:
src=files/Mosquitto/certs/ca.crt
dest=/etc/mosquitto/certs/ca.crt
owner=mosquitto
group=root
mode=0444
- name: Copy and decrypt ca.key from Ansible files/Mosquitto/certs/ca.key to Mosquitto remote /etc/mosquitto/certs/ca.key
copy:
src=files/Mosquitto/certs/ca.key
dest=/etc/mosquitto/certs/ca.key
owner=root
group=root
mode=0400
- name: Copy and decrypt ca.srl from Ansible files/Mosquitto/certs/ca.srl to Mosquitto remote /etc/mosquitto/certs/ca.srl
copy:
src=files/Mosquitto/certs/ca.srl
dest=/etc/mosquitto/certs/ca.srl
owner=root
group=root
mode=0640
- name: Copy and decrypt generate-CA.sh from Ansible files/Mosquitto/certs/generate-CA.sh to Mosquitto remote /etc/mosquitto/certs/generate-CA.sh
copy:
src=files/Mosquitto/certs/generate-CA.sh
dest=/etc/mosquitto/certs/generate-CA.sh
owner=root
group=root
mode=0540
# Execute raw command(s)
# REF: http://docs.ansible.com/ansible/raw_module.html
##########################################################
- name: Generate certs on remote via /etc/mosquitto/certs/generate-CA.sh
raw: cd /etc/mosquitto/certs && /etc/mosquitto/certs/generate-CA.sh
# Use the template module to populate files with data
# REF: http://docs.ansible.com/ansible/template_module.html
###########################################################
# /etc/mosquitto/mosquitto.conf
- name: Fill in the variables and copy templates/Mosquitto/mosquitto.conf.j2 from Ansible to Mosquitto remote /etc/mosquitto/mosquitto.conf
template:
src=templates/Mosquitto/mosquitto.conf.j2
dest=/etc/mosquitto/mosquitto.conf
owner=root
group=root
mode=0644
# Start mosquitto
# REF: http://docs.ansible.com/ansible/service_module.html
##########################################################
- name: Ensure the mosquitto service is enabled and started
service:
name=mosquitto.service
enabled=yes
state=restarted
# Remote SSH command line trouble-shooting commands:
# systemctl status mosquitto
# cat /usr/lib/systemd/system/mosquitto.service
# cat /etc/mosquitto/mosquitto.conf
# tail -f /var/log/messages
# ss -ntlup | grep 1883
# ss -ntlup | grep 8883
# ss -ntlup | grep 9001
# ss -ntlup | grep 9883
# lsof -P | grep IPv4 | sort -t: -k2,2n | grep 1883
# mosquitto_sub -h localhost -t test # Subscribe to a topic in one SSH session
# mosquitto_pub -h localhost -t test -m "hello world" # Publish to a topic in another SSH session
# mosquitto_sub -h localhost -v -t "#" # Subscribe to all
# mosquitto_sub --cafile /etc/mosquitto/certs/ca.crt -h localhost -p 8883 -v -t "#" # Encrypted subscribe to all
# mosquitto_pub --cafile /etc/mosquitto/certs/ca.crt -h localhost -t "test" -m "message" -p 8883 # Encrypted publish
# mosquitto_sub -t \$SYS/broker/bytes/\# -v --cafile /etc/mosquitto/certs/ca.crt -p 8883 # Encrypted read bytes