Lab
A Cloud Guru

Creating a Multi-Machine Vagrant Environment

By using a "Vagrantfile within a Vagrantfile" structure, we can create code that allows Vagrant to provision an environment comprised of multiple machines. This lets us create Vagrant environments that closely mimic production, separating out databases, services, applications, and more as needed. In this hands-on lab, we use the LXC provider to create two different machines and establish that the machines can communicate.

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Path Info

Level

Beginner

Duration

30m

Published

Oct 18, 2019

Challenge

Create Two Machines

Move into the website directory and initialize a Vagrantfile:
```
cd website
vagrant init
```

Update the Vagrantfile so two containers are created:

vim Vagrantfile

Vagrant.configure("2") do |config|
  config.vm.box = "fgrehm/trusty64-lxc"
  config.vm.provider "lxc"
  config.vm.define "web" do |web|
  end
  config.vm.define "db" do |db|
  end
end

Challenge

Configure the Private Network

Still editing your Vagrantfile, add a private network to each guest:

Vagrant.configure("2") do |config|
  config.vm.box = "fgrehm/trusty64-lxc"
  config.vm.provider "lxc"
  config.vm.define "web" do |web|
    web.vm.network "private_network", ip: "192.168.2.110", lxc__bridge_name: "brdg"
  end
  config.vm.define "db" do |db|
    db.vm.network "private_network", ip: "192.168.2.111", lxc__bridge_name: "brdg"
  end
end

Save and exit the file.

Challenge

Test the Environment
1. Deploy the environment:
```
vagrant up
```
2. Log in to the web guest:
```
vagrant ssh web
```
3. View the IP of the guest:
```
ifconfig
```
4. ping the db from the web guest:
```
ping 192.168.2.111
```

Author

A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

What's a lab?

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.