Merge pull request #18 from chbrown13/setup-avahi-discovery

Adding setup-avahi-discovery role

roles/avahi/README.md

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+Ansible Role for Setting Up Avahi Discovery
+===========================================
+
+This Ansible role sets up avahi discovery used to discover VMs deployed to a VLAN.
+
+Requirements
+------------
+
+No Requirements are required for this role.
+
+Role Variables
+--------------
+
+No variables required for this role.
+
+Dependencies
+------------
+
+This role is not dependent upon any galaxy roles.
+
+Example Playbook
+----------------
+
+Here is a simple example of an avahi role:
+
+- hosts: localhost
+  remote_user: root
+  roles:
+    - avahi
+
+License
+-------
+
+ GNU GENERAL PUBLIC LICENSE
+
+    Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc.
+
+
+Author Information
+------------------
+
+This is developed by Satellite QE team, irc: #robottelo on Freenode

roles/avahi/defaults/main.yml

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+---
+# defaults file for avahi

roles/avahi/handlers/main.yml

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+---
+# handlers file for avahi

roles/avahi/meta/main.yml

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+---
+# Standards: 0.2
+galaxy_info:
+  author: Satellite QE Team
+  description: Satellite QE Team
+  company: Red Hat
+
+  license: GPLv3
+
+  min_ansible_version: 2.5.0
+
+  platforms:
+  - name: RHEL
+    versions:
+    - 7
+
+  galaxy_tags: []
+
+
+dependencies: []

roles/avahi/tasks/add_mdns_service.yml

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+---
+- name: "Add MDNS service"
+  iptables:
+    chain: INPUT
+    destination: 224.0.0.251/32
+    protocol: udp
+    match: udp, conntrack
+    destination_port: 5353
+    ctstate: NEW
+    jump: ACCEPT

roles/avahi/tasks/enable_mdns_service.yml

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+---
+- name: "Enable MDNS service"
+  firewalld:
+    service: mdns
+    permanent: true
+    state: enabled
+
+- name: "Reload firewall"
+  systemd:
+    name: firewalld
+    state: reloaded

roles/avahi/tasks/install_mdns.yml

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+---
+- name: "Install epel-release"
+  package:
+    name: https://dl.fedoraproject.org/pub/epel/epel-release-latest-{{ansible_distribution_major_version}}.noarch.rpm
+    state: present
+
+- name: "Install nss-mdns"
+  package:
+    name: nss-mdns
+    state: present

roles/avahi/tasks/main.yml

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+---
+# tasks file for avahi
+- include_tasks: install_mdns.yml
+- include_tasks: enable_mdns_service.yml
+  when: ansible_distribution_major_version >= 7
+- include_tasks: add_mdns_service.yml
+  when: ansible_distribution_major_version < 7
+- include_tasks: restart_avahi.yml

roles/avahi/tasks/restart_avahi.yml

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+---
+- name: "Restart dbus"
+  service:
+    name: dbus
+    state: restarted
+
+- name: "Restart Avahi"
+  service:
+    name: avahi-daemon
+    state: restarted

roles/avahi/tests/inventory

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+[sat63]
+sat63-rhel7 ansible_ssh_host=sat63-rhel7.example.com ansible_user=root

roles/avahi/tests/test.yml

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+---
+- hosts: sat63
+  roles:
+  - avahi

roles/avahi/vars/main.yml

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+---
+# vars file for avahi