Amazon EC2 User Data Tutorial

[@StephaneMaarek]

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[@sandeepsahu3328]

hi sir i have the scripts saved in s3 bucket, the original and modified scripts are present Basically the script will install the groundrunner and create some folder once the ec2 instance is terminated , as on the back Auto scaling is configured , after the termination the scripts are not getting executed automatically, i have to manually run it ,
whenever the new instance is created by asg these scripts are supposed to be run from user data itself which is not getting executed , can u please help regarding this

[@tomyanth]

1:58 Select the advance details
2:11 Copy your user data text to the box to ask ec2 to initialize the instance for you

[@Quantum-Thoughts-2024]

the following line 2:10
#!/bin/bash
is very important.
I wasted a lot of time just because i did not use this line and the user data did not run.

[@mcclarymccony839]

how and where do i get the script ?

[@jayaprasadpk5920]

how did he got the coding script??

[@dharsann6515]

The instance should be configured in the public subnet right? And if the commands are deprecated will I be able to see the output.

[@sandeepsahu3328]

User data is not executing after the instance reboot..may i know what can be the issue

[@mandarkulkarni7675]

What options do I have if my instance is in a private subnet (with no internet access) ? Does AMI come with pre installed softwares ?

[@stephonhenry-rerrie3997]

can you run export commands in there as well? i want to have a set of environment variables created at launch for my api keys

[@RCAReaction]

How do you get information about those user data

[@andresgaitanherrera3972]

Hi, how can I run npm commands with user data? example yarn start (Not working)
#!/bin/bash
cd /a/folder/name &&
mkdir createfolder &&
yarn start:myapi:enviroment

[@linkedomata3343]

Hi Stephane , Is it possible to start application by executing powershell script from User Data section for Windows EC2 ? , For Example start-process notepad.exe . Will this work ?

[@harshalchoudhari3767]

Can we mount efs using user data

[@IIrandhandleII]

I think userdata is not instantiated at boot but instance initialization rather.

[@nasiralimurad4677]

where doi get this script

[@ttillman01]

Can you bootstrap an install of like Java 11 and Tomcat 9.0 in your EC2 instance? I kind of need a "real world" example. Thank you.

[@danielpanario9372]

yes, you can code that within cloud formation by using commands. find example below.
02-install_tools:
command: C:/cfn/files/tools/npp.7.5.6.installer.x64.exe /S
waitAfterCompletion: 5
03-InitializeDisks:
command: powershell C:/cfn/files/Disks/InitializeDisks.ps1
waitAfterCompletion: 5

[@swathivilasini22]

So where so I get that user data program from???????

[@henriikomebonny8438]

This is the same question i am having. please can someone help us. Thanks

[@saikrishna2918]

#!/bin/bash
#install httpd(Linux2 version)
yum update -y
yum install -y httpd.x86_64
systemctl start httpd.service
systemctl enable httpd.service
echo "Hello world from $(hostname -f)" > /var/www/html/index.html

[@abdul6423]

@@ReviewswBryz any luck?

[@abdul6423]

any luck?????

[@abdul6423]

@@henriikomebonny8438 any luck?

[@armandopadilla7932]

I already created the ec2 instance and I followed each step howeber the server seems no reached by the browser... What is wrong? Any clue?

[@arunjohn2995]

same with me did u get this sorted?

[@arunjohn2995]

Actually I solved it, we need to open https also in the sec group not just HTTP

[@edmoremusvibe8480]

Thanks a lot

[@saikrishna2918]

try instead of https on browser

[@RowanGontier]

@@edmoremusvibe8480 In the browser, make sure http is the prefix. I also found that by doing SSH into the instance, and going to folder: /var/www/html/index.html, you can verify that the content is correct.

[@vaibhav432]

useful

[@mklee786]

Hi, Can you just temme a way to install "boot2docker" iso via userdata. Since, I would lyk to setup "boot2docker" Iso in my AWS EC2 instance.

[@denisariollekounasedeu6285]

No body sees how you have the scripts