AWS User Data Tutorial - Step by Step (Part-7)

Welcome to our comprehensive AWS EC2 tutorial! In this video, we'll walk you through the process of managing user data scripts on Amazon Web Services (AWS) Elastic Compute Cloud (EC2) instances. We'll cover how to upload script files and, most importantly, how to troubleshoot and resolve issues when your user data script isn't working as expected by examining the /var/log/cloud-init-output.log file.
Video Timestamps:
00:00 - Introduction to AWS EC2 User Data Script Management
02:18 - Creating User Data Script
06:22 - Uploading User Data Script as file
06:10 - Troubleshooting User Data Script Issues
11:31 - Analyzing /var/log/cloud-init-output.log
Topics Covered:
✅ Understanding the importance of User Data in EC2 instances.
✅ Creating and preparing a User Data script.
✅ Uploading and associating User Data scripts with your EC2 instance.
✅ Launching and verifying the execution of User Data scripts.
✅ Troubleshooting common issues when User Data scripts fail to run.
✅ In-depth analysis of /var/log/cloud-init-output.log
✅ Step-by-step guidance on resolving common problems.
✅ Best practices for managing User Data scripts effectively.
Whether you're a beginner getting started with AWS EC2 or an experienced user looking to enhance your scripting and troubleshooting skills, this tutorial has something valuable for everyone. By the end of this video, you'll have a solid grasp of how to create, upload, and troubleshoot User Data scripts in AWS EC2 instances.
Don't forget to like, subscribe, and hit the notification bell to stay updated with our AWS and DevOps tutorials! If you have any questions or need further clarification on any of the topics covered, please leave a comment below, and we'll be happy to assist you.
Thank you for watching, and let's dive into the fascinating world of AWS EC2 User Data script management!

[@actorwahidsyed]

amazing Rahul.. you helped me understand the 'user data' concept pretty simply.. god speed.

[@RahulWagh]

Glad it helped

[@ravindrareddy8868]

Hello Rahul, your teaching skills are good and explained in clear way. Please make a video on aws DevOps pipeline which is more useful for all of them

[@RahulWagh]

It is already there on my channel

[@RahulWagh]

Mastering DevOps: Deploying REST API on AWS with Terraform and Jenkins Magic
ruclips.net/video/otQqd7GRVK0/видео.html

[@ravindrareddy8868]

@@RahulWagh Rahul, iam asking about AWS codecommit, AWS codepipeline, AWS Codebuild and AWS codedeploy. Make a video on this Rahul

[@rajsekhargude8158]

Hi Sir...i am learning AWS , ur course is helping very much NO WORDS...Thanks a Lot. Can please share the commands to install nginx as well

[@ShashiKumar-jc3gy]

This is really a nice and interesting session.
Thanks Rahul for sharing such content.

[@RahulWagh]

Glad you liked it!

[@sunkarasrinivas665]

Amazing session ❤❤.

[@RahulWagh]

Glad you enjoyed it!

[@CodingChannel1]

Amazing 👏

[@RahulWagh]

Thank you! Cheers!

[@anubisthewolf9142]

Thnx à lot

[@RahulWagh]

You are welcome

[@linuxcommand6245]

very nice

[@RahulWagh]

Thanks

[@atulsingh9266]

I was using user data to create an EC2 instance, and the HTTPD server was operational through user data. However, when I was restarting the instance and then encountered a 502 gateway error, I performed a status check. After that, I found that the HTTPD server was not running. I restarted it, and it started working again through the terminal. If I have 50 servers, and I need to restart them, do I have to start each one individually from the terminal, or is there another method? I have implemented a load balancer.

[@RahulWagh]

Make sure that user data script has the capability to check following-
1. Check if the httpd process is running and if the process is running then do not restart the httpd again.
2. If the process is stopped then start the httpd process again
This check will ensure that your httpd is always up and running no matter how many times you restart the server

[@atulsingh9266]

If I have 50 EC2 instance Then how I start all instance at single time because EOD I need to stop all EC2 instance but on next I need start all the task for completing work
Can I need to manually start one by one

[@Ashis_Kumar90]

userdata script from the lab instruction is not properly copied and pasted while creating the instance[i-04f06eefb95dc4421]
I'm getting this error

[@RahulWagh]

I could not see what error you are getting?

[@sheillaprosper7126]

Thank you very much Sir. Could you pls do a video on how to update user data content after creating an EC2 via launch template? I observed that if updated on EC2 instance itself with #cloud-boothook, it won't connect. So i'm thinking it could connect, if updated via the launch template, but I don't know how. I'd appreciate it if you can pls do a video on this. Thank you Sir.

[@RahulWagh]

No I do not think the launch template will help you need to restart the ec2 instance after you make a change in the user data script

[@sheillaprosper7126]

@@RahulWagh I'm sorry, I do not understand you Sir.

[@rahul1970]

I did same my script not working please help on this

[@RahulWagh]

Check the logs of startup scripts

[@AllInOne-ko3xw]

👍👍

[@RahulWagh]

😊

[@ramesh_kumar_verma]

Th@nkyou $!r

[@RahulWagh]

You are welcome

[@GS-jl2se]

You look like Sundar Pichai...