Vagrant Interview Questions And Answers 2020


Vagrant Interview Questions And Answers prepared from Codingcompiler experts. These Vagrant Interview Questions were asked in various interviews conducted by top multinational companies across the globe. We hope that these interview questions on Vagrant will help you in cracking your next job interview. All the best and happy learning.

In this article, you’ll learn

Vagrant Interview Questions
Vagrant Interview Questions And Answers
Advanced Vagrant interview Questions And Answers
The Best Vagrant Interview Questions And Answers

Vagrant Interview Questions

  1. What Is Vagrant?
  2. Vagrant Is Written In Which Language?
  3. Why do we use Vagrant?
  4. What is Box and how can we create a box?
  5. What are the subcommands associated with Box command? What they are used?
  6. How To Export A Vagrant Virtual Machine To Transfer It?
  7. How Can I Create A VM In Vagrant With Virtualbox With Two Cpus?
  8. What Exactly Do The Vagrant Commands Do?
  9. What are Plugins in Vagrant and how they assist?
  10. What is Vagrant push?
  11. When Provisioning Happens?
  12. What Are The Subcommands Associated With Box Command?
  13. What Is Box Outdated Command In Vagrant?
  14. What Is Box Remove Command In Vagrant?
  15. What Are Synced Folders In Vagrant?
    What Is Multi-machine Environment In Vagrant?
  16. What Are Plugins In Vagrant And How They Assist?
  17. What Is Vagrant Push?
    What Is A Vagrant Image?
  18. What Is Vagrant In Devops?
  19. What Are Plugins In Vagrant And How They Assist?
  20. What Are Providers In Vagrant?

Vagrant Interview Questions And Answers


Q. What Is Vagrant?

Answer :

Vagrant is an open-source software product for building and maintaining portable virtual software development environments, e.g. for VirtualBox, Hyper-V, Docker, VMware, and AWS.

Q. Vagrant Is Written In Which Language?

Answer :

Vagrant is written in Ruby language.

Q. Why do we use Vagrant?

Answer. Vagrant primary purpose is to create custom isolated development environments.

Q. What is Box and how can we create a box?

Answer. A box is a compressed file that contains all the files we need to start a vagrant virtual machine. We use vagrant init command to create a vagrant box.

Q. What are the subcommands associated with Box command? What they are used?

Answer. Command: C:\> vagrant box -h
Usage: vagrant box <subcommand> [<args>]
Available subcommand:
Add (vagrant box add <address to vagrant>)
this command adds a box with the given address to Vagrant
List (vagrant box list)
his command lists all the boxes that are installed into Vagrant
Outdated (vagrant box outdated)
this command tells us the current vagrant environment is outdated or not

Prune (vagrant box prune)
this command removes old versions of installed boxes. If the box is currently in use vagrant will ask for confirmation
Remove (vagrant box remove <box_name>)
this command removes a box from Vagrant that matches the given name
Repackage (vagrant box repackage <box_name> <provider> <version>)
this command repackages the given box and puts it in the current directory so you can redistribute it. The name, provider, and version of the box can be retrieved using vagrant box list
Update (vagrant box update)
this command updates the box for the current Vagrant environment if there are updates available

Q. How To Export A Vagrant Virtual Machine To Transfer It

Answer: I Have A Vagrant Box Up And Running (Configured With A LAMP Stack). I Need To Transfer It To Another PC. How Can I Export It? I Guess That I Can Get A File (Or Files) That Can Be Copied To Another PC, So There I Can Run Some Command To Import The Vagrant Box.

Q. How Can I Create A VM In Vagrant With Virtualbox With Two Cpus?

Answer: On Windows 7 64 Bit Trying To Start Up A VM (Ubuntu 32 Bit). I’m Having Trouble Getting My VM To Show Two Cores Despite Adding The Modify Vm Command In My Vagrantfile. My Vagrant Version Is 1.2.2.

# -*- Mode: Ruby -*-
# Vi: Set Ft=Ruby :
Vagrant.Configure(“2”) Do |Config|
  Config.Vm.Box = “Precise32”
  Config.Vm.Box_url = “Http://Files.Vagrantup.Com/Precise32.Box”
 Config.Vm.Provider :Virtualbox Do |Vb|
    Vb.Customize [“Modifyvm”, :Id, “–Memory”, “2048”]
    Vb.Customize [“Modifyvm”, :Id, “–Cpus”, “2”]   
  End  
End

Q. What Exactly Do The Vagrant Commands Do?

Answer

There Is Surprisingly No Documentation On What The Vagrant Commands Do, Other Than Referencse Throughout The “Getting Started” Tutorial.

What I’ve Worked Out So Far:

  • Box – Manage “Boxes”
  • Destroy – Shut Down The VM Then Delete Its Stored Image?
  • Gem
  • Halt – Shut Down The VM
  • Init – Prepare A Directory With A New Vagrantfile
  • Package – Shut Down The VM, Then Convert It To A ‘Package’ Which Can Be Turned Into A Box? (Or Something)
  • Provision – Run Just The Provisioning (Eg, Chef, Puppet…) Stage
  • Reload – Modify The VM Configuration (Eg, Reapply Vagrantfile), Reboot The VM, Reprovision
  • Resume – Un-Suspend (Ie, Unhibernate)
  • Ssh – Open An SSH Shell Connection To The VM
  • Ssh-Config
  • Status
  • Suspend – Hibernate The VM
  • Up – Some Or All Of: Copy A VM Image To Create A New VM, Apply Configuration To It, Boot It

Q. What are Plugins in Vagrant and how they assist?

Answer. Vagrant has a lot of great features to get our environment up and running. Sometimes if we want to change or add some additional functionality to Vagrant, that thing can be done via Vagrant Plugins.

Q. What is Vagrant push?

Answer. Vagrant push are defined in Vagrantfile of an application and these pushes are called using vagrant push command. Vagrant is capable of deploying or pushing application code from Vagrantfile to remote like an FTP server.

Advanced Vagrant interview Questions And Answers

Q. When Provisioning Happens?

Answer. Provisioning happens at certain points during the lifetime of your Vagrant environment:

1. On the first vagrant up that creates the environment, provisioning is run. If the environment was already created and the up is just resuming a machine or booting it up, they will not run unless the –provision flag is explicitly provided.

2. When vagrant provision is used on a running environment.

3.When vagrant reload –provision is called. The –provision flag must be present to force provisioning.

You can also bring up your environment and explicitly not run provisioners by specifying –no-provision.

Q. What Are The Subcommands Associated With Box Command?

Answer :

Box command used to manage (add, remove, etc.) boxes.

Command: vagrant box

The main functionality of this command is exposed via even more subcommands:

  • add
  • list
  • outdated
  • prune
  • remove
  • repackage
  • update

Q. What Is Box Outdated Command In Vagrant?

Answer :

Command: vagrant box outdated

This command tells you whether or not the box you are using in your current Vagrant environment is outdated.

Q. What Is Box Remove Command In Vagrant?

Answer :

Command: vagrant box remove NAME

This command removes a box from Vagrant that matches the given name.

Q. What Are Synced Folders In Vagrant?

Answer :

Synced folders enable Vagrant to sync a folder on the host machine to the guest machine, allowing you to continue working on your project’s files on your host machine, but use the resources in the guest machine to compile or run your project.

Q. What Is Multi-machine Environment In Vagrant?

Answer :

Vagrant is able to define and control multiple guest machines per Vagrantfile. This is known as a “multi-machine” environment.

These machines are generally able to work together or are somehow associated with each other. Here are some use-cases people are using multi-machine environments for today:

Accurately modeling a multi-server production topology, such as separating a web and database server.

Modeling a distributed system and how they interact with each other.

Testing an interface, such as an API to a service component.

Disaster-case testing: machines dying, network partitions, slow networks, inconsistent world views, etc.

Q. What Are Plugins In Vagrant And How They Assist?

Answer :

Vagrant comes with many great features out of the box to get your environments up and running. Sometimes, however, you want to change the way Vagrant does something or add additional functionality to Vagrant. This can be done via Vagrant plugins.

The Best Vagrant Interview Questions And Answers

Q. What Is Vagrant Push?

Answer: Vagrant is capable of deploying or “pushing” application code in the same directory as your Vagrantfile to a remote such as an FTP server.

Pushes are defined in an application’s Vagrantfile and are invoked using the vagrant push subcommand.

Q. What Is A Vagrant Image?

Answer :

The Vagrantfile has some information that will be merged into your Vagrantfile that is created when you run vagrant init box name in a folder. The box-disk.vmdk is the virtual hard disk drive. The box.ovf defines the virtual hardware for thebox.

Q. What Is Vagrant In Devops?

Answer :

DevOps is a lot more than configuration management.  Vagrant is another tool to help your organization transition to a DevOps culture. Vagrant also helps improve your entire workflow of using Puppet, improving development and process for both developers and operations.

Q. What Are Plugins In Vagrant And How They Assist?

Answer :

Vagrant comes with many great features out of the box to get your environments up and running. Sometimes, however, you want to change the way Vagrant does something or add additional functionality to Vagrant. This can be done via Vagrant plugins.

Q. What Are Providers In Vagrant?

Answer :

While Vagrant ships out of the box with support for VirtualBox, Hyper-V, and Docker, Vagrant has the ability to manage other types of machines as well. This is done by using other providers with Vagrant.

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