Input Variables in Terraform | Terraform Tutorial | #7

Terraform variables are like variables in any other programming language. Input variables allow you to pass in date to your configurations or modules making them more dynamic. Variables can be set in a number of different ways but the most common that I use is setting them in a specific file for variables.
In this video we'll modify the existing configuration that we have to allow us to dynamically set the configuration.
Declaring a variable
Using a variables.tf file
Variable types - string, number, bool, list, map, object
Using variables
Different ways of setting variables like with files, command line, environment variables, defaults
Variable precedence
Code Examples:
github.com/Wil...
Terraform documentation on varaibles
www.terraform....

[@lmahesh26]

These videos are criminallly underrated, much better than the freecodecamp ones, this helped me ace an interview. Thanks Brock

[@WillBrock]

Awesome, so glad it helped

[@andrefortunatolino]

Those series of Terraform videos are the kind of things that really makes the difference, they are the real world of terraform and help a lot to understand simple concepts that we really want and need on the daily basis. You went directly to the point showing how to do it, totally different from the majority of the courses, that cover badly theory concepts. Thanks, Will

[@WillBrock]

Thanks for the kind words. I'm glad they have been helpful.

[@kayoutube690]

The best terraform tutorial I found in youtube.

[@WillBrock]

Thanks, glad it was helpful!

[@chrispelfrey8651]

Thanks for taking the time to create this video. It was one of the best!

[@WillBrock]

Thanks for the kind words

[@hassanmohammad4912]

After watching a bunchhh of videos came across this one, 8 minutes in the videos and you've helped so much, beautifully explained, straight to the point simple to make you understand. Thank you

[@WillBrock]

Awesome, glad they were helpful

[@MrHanSoL0]

Wow bravo man 👏 I finally understand!! I was so stuck on inputs, variables, tfvars and you just simplified it and dumbed it down so well man, thank you very much 🙏. Keep it up, this is very impactful and serious for our times and companies that need to be migrated to the ☁️

[@WillBrock]

Awesome! I'm glad it was helpful.

[@George-mk7lp]

you are amazing man, all your terraform classes are high quality content

[@WillBrock]

Thanks for the kind words :) glad they have been helpful

[@Siva-wh9yp]

This is very helpful, to the point. Thank you so much for making the video

[@arunadig1755]

Very nice, clean, simple way you have explained like a magic.....Never saw a video like this one on Terraform...

[@aj7176]

i searched so many video, but this one has what iam searching for. So Thank You

[@ihor_1995]

Very useful video! Awesome! Thank you, Will.

[@WillBrock]

No problem, glad it was helpful

[@madaarimultitasks5945]

Hi will. Appreciate the effort. Had a massive doubt between variables.tf and terraform.tfvars, you came as a saviour.

[@WillBrock]

Awesome, glad it was helpful

[@swalkers8008]

HashiCorp should officially recognize this chanel

[@Gaurav-qw9us]

very nice explanation of variable usage in terraform. Thank you!

[@derekmab7734]

A very clear and helpful explanation. Thank you very much.

[@WillBrock]

No problem, glad it was helpful

[@Tomtheseapirate]

Your videos have helped me a ton. Thank you 1000 times for these.

[@BuffaloSpring]

Your videos are real helpful, thanks man!

[@WillBrock]

Glad you've found them helpful

[@jebc88]

Im getting "the argument is required, but no definition was found" error message. I do have the terraform.tfvars file with all the correct values, yet somehow it won't pull them. Im also using the variables.tf file to declare these as type = object(). As Will showed us, I'm trying to use these to define tags within AWS.

[@felipeozoski]

Thank you for this!!! We all appreciate it!

[@tendaimusonza9547]

Quite informative ,well done

[@namithcc]

Hi Will , I am getting below error, but i dont see any isue with code. any suggestion with tf version, i am using 13.4

[@khilielbullock8509]

So lets say we wanted to created a dynamic s3 and i have a veriable for that. I still would have to call the resource in the main.tf right? I plan on doing this to use existing s3's in DEV

[@veerendrakumarmarni2222]

I don't want replace resources, just need add to another 2 resource along with existing one.. How? Using command line

[@blazorax]

Thank you for the video, it was really helpful.

[@harshaisgud]

Thank You. This was incredibly helpful. 👍

[@WillBrock]

You're welcome

[@timonthyhall6744]

So let me get this straight ..to use variables you have to also have a tfvars file ?

[@WillBrock]

You don't have to. You can also specify them on the command line

[@umasrilakshmi3313]

can we pass a pipe line variable like CI_JOB_ID as an input to terraform?

[@WillBrock]

Yes. www.terraform.io/docs/language/values/variables.html#environment-variables

[@Joro123]

Thank you !

[@sushantasarkar8538]

How to pass variable in Json format,. Please guide

[@sushantjillawar7164]

Thank you for the amazing video..!!

[@agassijoel3343]

What is the difference between vars.tf and tfvars file. I am struggling alot to understand. Can someone help me to understand please

[@MuhammadWaqas-gr4gg]

Vars.tf is for Variables declaration whereas tfvars file is for Values of those variables.....So due to tfvars file we don't manually pass/enter the values for variables via command prompt, also its not a good practice to do...seems this solves your question.

[@sharsha9210]

@Will Brock It is not assigning any public IP to Instance

[@WillBrock]

You'll need to specify that you want a public IP in your config

[@rohitgupta-ep3nk]

Thanks

[@Shiki229]

Thank you!