30 – Vagrantfile Basic Training

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Date:  8/3/2020

 Welcome and greetings

  • Hello, and welcome to today’s episode.  A very special welcome and thank you to our listeners in Enterprise, Alabama.

Recap of last episode

  • In our last real episode, we discussed Hashicorp’s Vagrant product.  I talked a little bit about what it is and how it can be used to improve and speed up your automation efforts….especially around server provisioning.

Summary of this episode

  • In this episode, I’m going to talk about how you can further enhance automation with Vagrant by using a Vagrantfile.  I’m going to cover 3 examples of how a Vagrantfile can be used in different ways to provision a server.

What’s in it for you?

  • At the end of this episode, you will be able to discuss with your peers and co-workers how you can use Vagrant and Vagrantfiles to further your automation efforts.  You will see how to set up a basic Vagrantfile and some of the syntax that goes into setting up the commands to successfully create the server(s) that you need for your application and environment.

Episode Content

Here are the 3 examples that I cover in this episode.  Having this in front of you as a reference will help you understand some of the commands that I cover.


# Begin examples.

– Create an empty directory.

– Copy the above file to it as Vagrantfile.

– Install Vagrant and VirtualBox if you don’t have them yet.

– Using “cd”, change to the directory and run “vagrant up”. It will take a while to download the image and then to install Jenkins in the image.

– Then on your computer browse to http://localhost:8080/ Jenkins will prompt you for the secret admin password that was set up during installation.

– On the command line, type “vagrant ssh” this will ssh into the VirtualBox running Jenkins.

– Type “sudo cat /var/lib/jenkins/secrets/initialAdminPassword” to get the secret, copy that secret to the browser.

– Just use the default installation parameters, then create a user for the admin user.

– If you don’t see the jenkins screen, then restart the machine by typing in “sudo reboot”.

– Once the machine has rebooted, you can reload the page in the browser and it should show you the Jenkins login page.

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# Example # 1

——————————————————

# vi: set ft=ruby :

Vagrant.configure(“2”) do |config|

  config.vm.box = “ubuntu/bionic64”

  config.vm.network “forwarded_port”, guest: 8080, host: 8080, host_ip: “127.0.0.1”  ### this should be the IP of the host that vagrant is running on.

  config.vm.provision “shell”, inline: <<-SHELL

    apt-get update

    apt-get upgrade -y

    wget -q -O – https://pkg.jenkins.io/debian/jenkins.io.key | sudo apt-key add –

    sh -c ‘echo deb http://pkg.jenkins.io/debian-stable binary/ > /etc/apt/sources.list.d/jenkins.list’

    apt-get update

    apt-get install -y openjdk-8-jre

    apt-get install -y jenkins

  SHELL

end

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# Example # 2

——————————————————

# -*- mode: ruby -*-

# vi: set ft=ruby :

VAGRANTFILE_API_VERSION = “2”

$script = <<ENDSCRIPT

  sudo yum install -y epel-release

  sudo yum -y update

  sudo yum install -y net-tools

  sudo yum install -y wget

  sudo wget -O /etc/yum.repos.d/jenkins.repo http://pkg.jenkins-ci.org/redhat/jenkins.repo

  sudo rpm –import http://pkg.jenkins-ci.org/redhat/jenkins-ci.org.key

  sudo yum install -y jenkins

  sudo yum install -y java-1.8.0-openjdk.x86_64

  sudo systemctl start jenkins.service

  sudo systemctl enable jenkins.service

ENDSCRIPT

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|

  config.vm.box = “centos/7”

  config.vm.network “forwarded_port”, guest: 8080, host: 8888

  config.vm.provision “shell”, inline: $script

end

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# Example # 3

——————————————————

Vagrant.configure(“2”) do |config|

  config.vm.define “jenkinsserver”, primary: true do |pm|

    pm.vm.box = “puppetlabs/centos-7.0-64-puppet”

    pm.vm.box_version = “1.0.2”

    pm.vm.hostname = “jenkinsserver”

    pm.vm.network :private_network, ip: “10.10.10.10”

    pm.vm.provider “vmware_fusion” do |v|

      v.vmx[‘memsize’] = “4000”

      v.vmx[‘numvcpus’] = “2”

    end

    pm.vm.provision “shell”, path: “setup.sh”

    pm.vm.provision “puppet” do |puppet|

      puppet.options = “–verbose –debug”

      puppet.environment_path = “path/to/puppet-manifests”

      puppet.environment = “dev”

      puppet.hiera_config_path = “hirea/hiera.yaml”

      puppet.working_directory = “/tmp/vagrant-puppet”

    end

  end

end

# End of examples.


Recap of this episode

  • In this episode, we reviewed how to set up and use a Vagrantfile to enhance your automated server provisioning.  This will be valuable if you need to stand up an isolated server instance for a particular type of testing when you don’t have the time or money to purchase a new bare-metal server and get it into your data center and network.

I’d like to thank you for joining me in this episode.  

I hope that you found some value in what I covered and if you have suggestions for future topics, please feel free to drop me a message and I’ll be sure to review those to work into the schedule.  

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