Terraform for loop, for_each loop and count - Part 6

Terraform for loop, for_each loop and count
▬▬▬▬▬▬ ⭐️ Instruction's Guides ⭐️ ▬▬▬▬▬▬
1. How to use Terraform for loop, for_each loop and count? - jhooq.com/terraform-for-and-f...
▬▬▬▬▬▬ ⭐️ Previous Terraform tutorials ⭐️ ▬▬▬▬▬▬
Part 1: Terraform Explained | How to create your first terraform infrastructure on AWS and Google Cloud - • Terraform Explained | ...
Part 2: Terraform Input Variable (string, number, boo, list, map...) | How to use Terraform Input Variable - • Terraform Input Variab...
Part 3 : Terraform variable.tf | terraform.tfvars | Terraform command line variables - • Terraform variable.tf ...
Part 4: Terraform Locals | How to use Terraform Locals? - • Terraform Output Value...
Part 5: Terraform output values | How to use Terraform Output Values? - • Terraform Locals | How...
Terraform for, for_each and count loops can be used for iterating over the collections like list, set and map.
▬▬▬▬▬▬ ⭐️ 🕘Timestamps ⭐️ ▬▬▬▬▬▬
0:00 - What is for, for_each and count loops
00:42 - for loop
08:21 - for_each loop
12:17 - count
For more details on Terraform here is the official guide -www.terraform.io/docs/languag...
To learn more on DevOps visit - jhooq.com
Disclaimer/Policy: All the content/instructions are solely mine. The source is completely open-source.
Video is copyrighted and can not be re-distributed on any platform.
#devops #terraform #InfrastructureasCode #cloud

[@newallst]

There are a lot of complicated explanations out there on how to do loops / for_each loops using Terraform. You nailed it beautifully. Thank you.

[@RahulWagh]

Glad you enjoyed it!

[@distantignition]

I want to point out that you should use count as little as possible, especially on resource creation. If you have resource A,B,C,D, that will give you resources 0,1,2,3. If B is then no longer needed, C slides into the "1" slot and D into the "2" slot. This is a huge pain. It will try to force resource recreation, which is fixable, but working around this isn't worth it. Just use for_each and reference the resource index by name. The resources need to be a set or map, but you can convert a list of strings with toset().

[@vettomd]

Love the way you explain by adding context and bit of concept.

[@RahulWagh]

Glad to hear that you like the terraform sessions

[@etpienaar]

can you use it to iterate through deploying to different regions - like aws config rule applied to multiple regions using the for loops, as there is no region id other than provider Thanks :)

[@aalaka330]

Hi, Thanks for the awesome explanations. Can you please tell, how we can use foreach loop to create multiple widgets in a dashboard?

[@joe_wheat]

thank you for your knowledge sharing! You make a great work!

[@RahulWagh]

Thanks for the feedback

[@nguyenminh15988]

Thanks for your videos! It's really nice.

[@RahulWagh]

Glad you like them!

[@ramamt6350]

Thank you For Sharing Valuable Concepts.

[@twizzoe]

Thank you very much Rahul, I have learnt a lot from your Terraform videos. I can't wait to get to your other videos. Gracias

[@RahulWagh]

Glad to hear that

[@praveenchintu1312]

Perfectly explained!

[@RahulWagh]

Glad you think so!

[@ThinkDatahub]

Thank you for a very wonderful presentation. However, my question is, since both the for_each and count produce the same results on AWS, am interested in knowing the difference and why should I prefer one over the other? Thank you very much!

[@rajrocky8658]

Nice explanation. Keep up the good work :)

[@HavingFunWithAvyan]

Hi Rahul, thanks but how can test the out value of the functions some times locally

[@TrollStdin]

This is a pretty good explanation, is so good I even included the link on one of my videos, please keep the good work.

[@RahulWagh]

Awesome, thank you!

[@happylearningtricks]

learning from your videos Rahul - thanks for your videos

[@RahulWagh]

Glad to hear that

[@sivarasana3641]

Great session sir

[@RahulWagh]

Keep watching

[@RohitSyd]

Great explanation

[@piyushbagani9244]

So Can for loop be used to create resources or it is used for output only?

[@sathishdarshanala5492]

hi rahul you have given count = length(var.user_names) iam littile confusing over here, are you calling another file which you have mentioned already as var.user_names somewhere?

[@sudheerk406]

You are Awesome man.

[@RahulWagh]

Thanks I hope you liked the terraform series

[@joepinto5066]

hi, a question how to output values if we use in resource foreach example: resource "aws_subnet" "public" { for_each = var.pub_subnet vpc_id = aws_vpc.vpc.id cidr_block = each.value.cidr_block

[@RahulWagh]

You have to write the output block for that

[@suneeshmsuresh1092]

Simply Explained...👍👍👌👌

[@RahulWagh]

Glad you liked it

[@cirishafranky]

Great post thank you. Also I found out that 'count' is a parameter of terraform, it cannot be anything else. Having this parameter in the block executes the block 'x' number of times specified in count.

[@hasan135]

Thanks for sharing this nice video.

[@RahulWagh]

So nice of you

[@yogeshjagadale7385]

Excellent explanation 👍👍👌👌

[@RahulWagh]

Glad you liked it

[@Masaf_YT]

Hi Rahul you are a fantastic guy that reflects on your face. my blessing all the time with you and keep making nice videos as always. welldone.

[@RahulWagh]

Cheers! Hope the sessions are useful for you

[@praashanthkumaarpolla6252]

Hi .. i have annissue with the subnet and the error is subnet IDs should be list... I don't know what that exactly but finally I got this place to ask .. pleas please help

[@RahulWagh]

It is really hard to suggest without knowing full context

[@vinaykorrapati2967]

Amazing Videos and nice explanation. Done with the terraform videos..Requesting you to upload the CI CD pipeline stuff as well..

[@RahulWagh]

There is more to come in terrafrom as well as CI CD. But meanwhile here is one CI CD video which i could recommend to start with - kzbin.info/www/bejne/ioGwhquph65khaM

[@YouTubers-rj9xv]

Excellent teaching...love from andhra

[@RahulWagh]

Stay tuned for more upcoming similar session

[@mdnishadhussain7131]

Awesome explanation! Could you please clear one doubt as all three create the same thing so when to use each? If you can tell me the actual Use Case for each then it would be a great favor. May God Bless you. Thanks once again!

[@RahulWagh]

Well the simplest use case of for_each would be the terraform dynamic block - if you havn't chcked how to create the dynamic block then please check and it will make more sense - kzbin.info/www/bejne/qV60ZqKKi7t2ldE

[@mdnishadhussain7131]

@@RahulWagh Okay..I will go through it for sure.. Thanks.

[@SurajRaghunathansrjd8]

can you tell me from which site did you use to create your website sir

[@RahulWagh]

The website is developed using Hugo site generator. It is a static site not a wordpress site.

[@madhurip6263]

Hi,Thanks for the awesome explanations.could you please do some videos on terraform version up gradation.

[@RahulWagh]

Yes, soon

[@thandepapa79]

What's the need of creating Ec2 when you are creating iam_users ? Example- Count.

[@2mahender]

can i use for loop creating multiple ec2 instances?

[@RahulWagh]

Yes you can use for loop for ec2 instance creation

[@2mahender]

@@RahulWagh can u make once video on for loop with ec2 instances, as you have used for outputs only

[@basavaraddychittargi3038]

Could please add video on nested for each Ex:let's say..we have list projects for each project I have to provide owner/editor role to list of user

[@RahulWagh]

I will try to add it into my todo list but can not promise any time soon

[@gk4976]

Rahul bro Can you please segregate all Kubernetes videos, actually I'm beginners in Kubernetes and your way of explaining is amazing, could you please make Kubernetes playlist videos step by steps

[@RahulWagh]

I am glad you liked the session. Here are playlist - 1. Kubernetes - kzbin.info/www/bejne/mKPMppJ7q51sqdk 2. Helm Chart - kzbin.info/www/bejne/pnmqlGttr61_otE 3. Terraform - kzbin.info/www/bejne/oHu7Z4Zrf6Z6pqs //Rahul

[@nerellaprasad1862]

i under stand your session and following you ..

[@RahulWagh]

Glad you like the sesion

[@arjunt6791]

In for loop why we are using output variable values instead of input variables as you implemented in count, and for each loop...

[@RahulWagh]

Well it is just for tutorial purpose you can have your own implementation as you want

[@shubhamsahu1199]

bhai please explain the differnence between also?

[@pratspatel5698]

Eagerly waiting for upcoming video I planning for Terraform associate certification please advise.

[@RahulWagh]

Thanks prats for the feedback. Well I am preparing a complete series and you will be seeing many more videos on terraform in upcoming weeks. I have planned the complete terraform series but it would little time to prepare all

[@n.sudhirkumarn.sudhirkumar3127]

sir u explain good.. bt try to differentiate whats the purpose of for count why to use For If we can use COUNT try to tell also in ur next vedios in which situation we use for n in which situation we use COUNT

[@yogeshjagadale7385]

Please make more videos on Terraform

[@RahulWagh]

Its on my calendar. You will see more terrafrom videos in upcoming weeks and months

[@arjunt6791]

Here in for each loop, how each.value works , please explain briefly

[@RahulWagh]

each.value is just like an iteration or if you compare with other programming lang then it is a for loop

[@aniruddhamalkar4981]

You should have explain the use of for loop for aws users. When you are doing output you can just printing the list through iteration not the actual iteration. Disappointed.