/ #Ansible #Awx 

Ansible AWX

It has been a while as I have been busy writing, I thought I would spend some of my freetime having a very quick play with Ansible AWX, which is the Open Source version of Ansible Tower.

I created the following Vagrantfile to launch a CentOS 7 server;

# -*- mode: ruby -*-
# vi: set ft=ruby :

VAGRANTFILE_API_VERSION = "2"

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
  config.vm.box = "centos/7"
  config.vm.provider :virtualbox do |v|
    v.memory = 4048
    v.cpus = 2
    v.customize ["modifyvm", :id, "--natdnshostresolver1", "on"]
    v.customize ["modifyvm", :id, "--ioapic", "on"]
  end
  config.vm.define "awx" do |awx|
    awx.vm.hostname = "awx.local"
    awx.vm.network :forwarded_port, guest: "80", host: "8080"
    awx.vm.provision :ansible do |ansible|
      ansible.playbook = "playbook.yml"
      ansible.become = true
    end
  end

end

This launches the following playbook.yml which prepares the CentOS 7 box by installing Docker and the other prerequisites need to build and launch AWX;

- name: Deploy AWX
  hosts: all
  become: true
  become_user: root

  tasks:

    - name: sort out the yum repos
      yum:
        name: "{{ item }}"
        state: "latest"
      with_items:
        - "epel-release"
        - "yum-utils"

    - name: add the docker ce yum repo
      yum_repository:
        name: "docker-ce"
        description: "Docker CE YUM repo"
        gpgcheck: "yes"
        enabled: "yes"
        baseurl: "https://download.docker.com/linux/centos/7/$basearch/stable"
        gpgkey: "https://download.docker.com/linux/centos/gpg"

    - name: install the prerequisites using yum
      yum:
        name: "{{ item }}"
        state: "latest"
      with_items:
        - "epel-release"
        - "libselinux-python"
        - "python-wheel"
        - "python-pip"
        - "git"
        - "docker-ce"

    - name: start and enable docker
      systemd:
        name: "docker"
        enabled: "yes"
        state: "started"

    - name: install the python packages using pip
      pip:
        name: "{{ item }}"
        state: "latest"
      with_items:
        - "pip"
        - "ansible"
        - "boto"
        - "boto3"
        - "docker"

    - name: check out the awx repo
      git:
        repo: "https://github.com/ansible/awx.git"
        dest: "~/awx"
        clone: "yes"
        update: "yes"

    - name: install awx
      command: "ansible-playbook -i inventory install.yml"
      args:
        chdir: "~/awx/installer"

(You can find the files above in a gist on GitHub) Running vagrant up will launch the CentOS 7 machine and execute the playbook to install AWX, this process takes about 15 minutes.

The complete playbook run In the background the installer has built and downloaded several Docker images, you can check what is going on the machine by running;

vagrant ssh
sudo docker image ls
sudo docker container ls

Once the build has completed you should the following images; Also, you should have several containers running; Once the containers have launched, going to http://localhost:8080/ should show you the following;

This will take about 5 minutes to upgrade After a while the page will eventually refresh into a login screen, the default user is admin and the password is password. Once logged in you will be taken to the dashboard, here you can see that there is already a project created, this is a simple test job; You can test your installation by running the test job, which is the Ansible equivalent of a Hello World, you can see the output of running the template below; As I said at the start of this post this was a only a quick post to document how you can get quickly (well sort of quickly) get an AWX host up and running, if you would like more detail on how to use AWX see the Ansible Tower Document site.

Author

Russ McKendrick

Buys way too many vinyl records, writes a lot about Docker & loves orchestration. Works at @node4ltd / @n4stack has written for @PacktPublishing