Day-5 | Most Common Terraform Task Used in Real-Time |
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- Опубліковано 18 вер 2023
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running a web server is long running process. terraform doesnt know whether it is successful or not. It terminates the command while closing the ssh session. We should run the process background and give some prompt to the terraform. I think we can do it using the nohup cmd
😎😎
I am a beginner..can you elaborate more?
@@Geekgurlcode When you run a Terraform script to provision infrastructure, certain resources may involve long-running processes, such as deploying and configuring a web server. The issue you're encountering is that Terraform may not wait for these long-running processes to complete before closing the SSH session, leading to uncertainties about whether the process was successful or not.
One approach to address this is to run the long-running process in the background and disassociate it from the current session. The nohup command is a useful tool for doing this in Unix-like systems. The nohup command stands for "no hang up" and is used to run a command immune to hangups, with output to a non-tty (non-terminal) that persists even after the user logs out.
as we run any command with "&" at the end , it run the command in backgroud , nohup is just for getting output of the commands in nohup.out files at same location.
@@suhasdhoke1735 I am also thinking the same. It should run in background right as we are using sudo command and & at last it should work. I searched and got this. I am not sure
Shell Differences: The shell environment might behave differently between manual login and remote execution. Try explicitly setting the shell to /bin/bash or /bin/sh in your remote-exec command to see if it resolves any differences.
Abhishek, you saved my life...attending so many worst trainnings in devops, being unemployed with responsibilities for 6 months, I finally found my confidence back...Thanks, Thanks for such a great work. Finally decided to attend interviews
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Superb explanation..you made a complex concept into very simplified manner
THANKS FOR PUTTING YOUR EFFORTS
Absolutely wonderful... Thanks a lot for this series.
Most welcome!
Hi Abhishek, You made my day is very easy becuse even I am under impression that how to write terraform code, after watching your videos, I am confident that any one can learn the terraform. Kudos to Abhishek, helping many upskilling students like me. God bless you my dear.
It's my pleasure
Abhi Anna You are some one who always makes complex topics very easy for the beginners..!
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Thank you for creating a Terraform Zero to Hero series it helped me a lot to learn & enhance my skills, I request you to create more real-time projects examples like this which will boost the confidence in gaining knowledge beginners & experienced people.
Your content is worth learning & helps to build their career. Keep going..!!!
I will try my best
Kudos Abhishek for creating this simple content for Provisioners .😊😎
Crisp and Clear !
superb explanation
Thanks
Thank you sir, you explained it in much easier and simple way thank you again
You are welcome
Good to see your consistency 👍
Thanks
How come I am just meeting you!!!! Wow! Thank you.. You give confidence to the listener by your teaching. Thank you Abhishek👏
Most welcome
hi abhishek i am able to successfully implement the task. thank you.
just waiting for the next session... and you are here today 😊thanks 😃🙏🏻
Thanks
I am trying to understand the logic and the pain, he takes to explain. It made me feel that to my knowledge, none-other -other than he can guide people so sincerely. I will share the link with my friend. Hats off Abhishek!!!!
Thank you sir. Great video.
Most welcome !!
Great explanation ❤
Thanks
super super super explanation
I have previous knowledge on provisoner but this much easily I never understood, This series helping me for revising Terraform concepts. Thank you Abhi Bro
Great to hear!
❤nice explained as usual Abhishek .
Thanks a lot
Your are a simha, legend and akanda blockbuster in devops.
haha
very well explaination i got the things so easily.. u really makes hard concepts into soft...this video helps me alot. even i executed it correctly tq abhishek
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I initially found Terraform to be a challenging tool to work with. However, after following your Terraform series, I've come to realize that it's actually quite straightforward and manageable. Thanks Abhishek 😊
Yes it is very simple
I'm loving your series. I know you will bless us with a similar series for Ansible@@AbhishekVeeramalla 💌
You are awesome Abhishek , I followed different courses on terraform . Felt terraform is complex , By watching this Zero to Hero . I can feel its very interesting and easy to learn
Glad to hear that
THE BEST
Please include TERRAFORM VAULT also in this course it is very helpful to learners. 😊
Thanks for this wonderfull video I have completed this and its working as per the code
Awesome
Hi Abhishek, Thanks for giving this wonderful Terraform series.
Thanks and wish you the same
Nicely Explain
Just removed the & in that command & application running in foreground able to access it from browser. It worked for me
🚀🚀
Nice
Abhishek, you are the Gem in all DevOps trainers. I am a senior software proffessional and following devops practice now. Your explaination is in very simple ways which I can understand without looking into screen (i can understand from audio only)
I had a request about future series should cover complete product/software to be build under complete devops practice ie. Microservices to helm deployments, cicd, monitoring...
This could be a final landing of any devops engineer
Sure
Thank you ^^
You're welcome 😊
Thanks for the provisioner concepts.....will you cover data sources also ??? please try to include this topic in your upcoming videos...
Sure 👍
Hi Abhishek , Please can you make at least one consolidated video on networking concepts for Devops engineer , may not be detailed but at least which covers most of the required concepts of enterprise networking (Cloud and on premises ).or may be a video which lists out imp concepts of networking.
sure, noted
Thank you@@AbhishekVeeramalla, me too looking for the same
Superb bro the way you are explaining ... Thanks @abhishek.Veeramalla
Abhishek Anna OP❤
Most welcome
thankyou sir
Thank you so much 😊
After watching thiese video getting some questions in my mind.
What is difference between tf and ansible?
Upto packages installations the tf provisioners are Ok but in real time projects using more than that so how it will useful ?
By using ansible we can manage all hosts/servers to different operations like installations/copy etc..
"sudo python3 app.py &",
removed "&" and "," the script was able to initiate the python application. Not sure on the usage of "&"
after stopping the appkication, terraform returned this error, "remote command exited without exit status or exit signal."
Thanks Abhishek, will data sources will be covered and if infrastructure is already created then how can we start terraform from there, is it possible to create state file for already created infra to have both desired and actual having same state?
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Thanks a lot
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What is the difference between Userdata and provisioner in terraform anna. Can you explain
Waiting for your EKS cluster creation video!!
Hi @AbhishekVeeramalla
Thanks for giving wonderful Terraform series to learn free in UA-cam.
I have find clear cut solution in google "To run a shell script in the background, use the “&(ampersand)” bash control operator and the built-in “nohup” command line tool. Both these utilities almost perform the same job. The core difference between both of them is that the “nohup” command does not kill the background process at the session termination while the “&” symbol terminates all processes after the system logout" this is the correct solution for your assignment i think.
If anything missing. Could you please suggest .
Thanks in advance!!
Yes. the last line should be replaced with this "nohup sudo python3 app.py > /dev/null 2>&1 &"
This will also run the app in the background and discard all output-error log of the app. Doing this it won't kill the process while session termination.
null resource and functions in terraform pls discuss bro....
👍👍👍💪👌
hi Abhishek instead of public key can we use private key with NAT gateway?
Thanks Abhishek. I have followed your videos and with my experience I got four offers . thanks a lot..please post more videos on kubernetes and terraform
Hearty Congratulations 🥂
@@AbhishekVeeramalla thanks
Hai Bro, Can you make the detail video on jeera ticketing tool..
for me app was not running as I was using Amazon Linux ami and tried with ubuntu user. After using ec2-user it worked as expected. Thank you for providing great content.
Hi Abhishek I am able to do it and all the resources are created but not able to access the public IP. I checked the IG and Subnet all looks good. Any tweak required? Thanks
Waiting for your videos annaya 😊 now day's companies are asking splunk if possible pls do video on splunk from scratch to adv.. tq alot annaya
Yeah sure
@@AbhishekVeeramalla tqq alot annaya 😊
Hi Abhishek, I am eagerly waiting for conditional operators, functions and TF Cloud.
Am not sure whether they were part of this course.
Lets go step by step
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userdata in ec2 instance and provisioner remote-exec both are the same, instead of defining in AWS console, we are defining in terraform inline remote-exec
I will explianed the difference.. pls check
Sir show how we can provision resources using a CiCD pipeline
@Abhishek_veeramlla could you please tell me how to put particular concept in the resume
Dear Abhishek, now a days most common question is-how you are deployment in Terraform IAC.Could you share a solid answer for this with an example. Pls Pls Pls
Hello I am not able to make key pair value using ssh what is the key name when we have to name it?
Hi Abhishek, I know this is not place for this question. Do you have any Idea about Developer Advocate role and is this a right career choice
I am facing an error:
When terraform runs sudo apt-get install -y python3-pip, ubuntu gives a purple prompt to ask which services need to be restarted and then terraform times out.
Can you please help me abhishek?
Hi Abhishek, I am getting this error while running the terraform apply "Error: file provisioner error
│
│ with aws_instance.name,
│ on main.tf line 86, in resource "aws_instance" "name":
│ 86: provisioner "file" {
│
│ Failed to read ssh private key: no key found"
I would like to know how i can pass my private key of AWS in codespaces?
can we pass value to module to make it dynamic
You are awesome bro and How to add terraform in our jenkins pipeline??
Easiest way is to just install terraform on the jenkins executors and run terraform in your pipeline
Hii Abhishek…. Your videos are amazing…. I joined one of the paid course but i did n’t get much knowledge now everyday i am following your videos… one small help now i want restart my career with devops as entrylevel do i need do any certifications please let me know i am in uk .. my education M. Tech((CSE)… Thanks in Advance….
Thanks a lot
How do we use depends on to relate all these tiers
Hi Abhishek , I want to know if I have Ec2 module and I want to attach this EC2 instance created by a module , to a VPC created in main.tf file located at root then How would this VPC id would be referenced or pass on tp EC2 module , Can u pls help me here
Hi Abhishek, As & need to delete from main in terraform, will work fine.
😎
@@AbhishekVeeramalla, But that does not completes the tf infrastructure creation process, it keeps running with "instance ...: Still creating...", & is required at the end to run the process in background and the infrastructure creation should complete successfully.
In the interview,is it okay to use the terraform documentation or not?
please come up with the video on data source and terraform vault
Already in the syllabus
I am trying 1:1 on, but couldn't book slot for the same. I have texted earlier concerning same. Kindly provide best possible way.
Our subscribers are booking the slots. You can book the latest available slot if not there is a chance you will miss that too
Using wget in remote-exec and its not working. Replaced it with Curl still same problem. The instance is created. All commands before wget get executed, but when it comes to wget or curl, it shows creating and this goes on for infinity. Tried ssh into the same machine and ran the command from the console. It runs perfectly. That implies that this is not a problem of ports. Then what am I missing, or what is the solution if I want to copy a file into my created instance.
The same thing happens in the demo in this recording when running python app, when going to the instance running that command it's working perfectly, but from remote_exec, it is not, if we remove the '&' at end it is running fine, but again it shows creating infinitely..., it is dificult to debug what's going wrong. @Abhishek, do you have any input here?
Hi Abhishek,
Need to change instead of Day -4 To Day -5 on description Not Thumbnail...
Thanks for the correction
I followed the same steps but i am facing issue while terraform apply
still creating and time is elapsing
Your ssh keys must be incorrect .. pls check
Hi abhishek how to replace path with our public key files
Did not get the question, please eloborate.
Thanks for giving the replyback the issue is solved
Failed to parse ssh private key: ssh: this private key is passphrase protected.
bro i faced an error like this in day 5. pls give the solution
when you create the key don't use passphrase.
I am getting error file provisioner error
Anna...Got error----- file provisioner error ...this private key passphrase protected...
Pls reply me Anna
Try granting chmod 600 to the files in .ssh folder
@@AbhishekVeeramalla thank you for quick reply Anna...
Bro can you teach me devops one to one from scratch ?
No personal training service .. UA-cam playlists are easy to understand for everyone
i think there's something wrong with the python cuz the commands are kinda wrong like this "sudo pip3 install python3-flask","sudo python3 app.py" instead of "sudo pip3 install flask", "sudo python3 app.py &"
Don't you see instance creation running infinitely after you remove & at end of running app.py?
last line didnt execute because you do not have permission to execute.
Permissions is not the issue
Bro getting lot of errors while executing the scripts. showing lot misconfiguration in the scripts dont know how to troubleshoot
What is the error ? What is the misconfiguration ?
@@AbhishekVeeramalla Bro I have tried to mix Day-4,5,6 projects and try like creating workspaces and deploying the flask app along with backend file so I got errors. and now tried implementing only 5 day project got succeded. will try again my experiment.
sir here 31:36 now terraform is not at all less then ANSIBLE or any configuration management tool because since we are using provisoners and destructor we are having mostly all the power to do things that ansible doo soo here does Terraform has replaced Ansible ?
No .. ansible is very powerful as it is designed for configuration management
using condition statements making an video
terraform destroy somestimes doesnot delete the resources why is it? like day4 hands-on, i tried to use terraform destroy, the dynamodb is deleted bu not the s3 buckets and its content saying "ResourceNotFoundException: Requested
│ resource not found
│ * Unable to retrieve item from DynamoDB table "terraform-lock": operation error " and for s3 " Error: deleting S3 Bucket (subash1816-demo-bucket): operation error S3: DeleteBucket, https response error StatusCode: 409, RequestID: 5Q1XK4YV1WDJ555Y, HostID: xta8+Sp+aym8yejnnePmJvV3u2k4jdh8abts9M2z2poqPH/9jaSkvfDYldQR7UXo7YWVIrjbEak=, api error BucketNotEmpty: The bucket you tried to delete is not empty". even using force destroy it didnot work. I had to manually delete the resources. what's the solution for such issues
I also have seen this, you are using dynamo db for locking resource, so your creation of dynamodb and s3 bucket which you are using for backen should be created separate, and if you create together with ec2 instance, while destroying it first removes the table from dynamo db and while trying backend for lock, it is not finding the dynamodb table. so the issue.
can somebody tell i am getting below error while executing project
public_key = file("~/.ssh/id_rsa.pub") # Replace with the path to your public key file
Hi, did you generate the key using ssh-keygen -t rsa
@@sainirmalreddygavini2392 ya done although getting error
@@maheenagaral483 post the error here bro, will check and let you know