Subscribe to our newsletter below to get awesome AWS learning materials delivered straight to your inbox. Follow the procedure for launching an There is a public IPv4 address, this is what were going to use to access our EC2 instance. Copy your user script into the Edit user data box, and then choose Save. This is how I got it to work: I moved to pulling it from a template instead since what you see is what you get. Ref: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/user-data.html#user-data-shell-scripts. The security group associated with your instance is configured to allow SSH (port 22) Lets check the web server running on our instance. data field, and then complete the instance launch As we all know, Amazon EC2 (virtual machines) is the legacy approach to hosting applications in the world of containers. On a Windows computer, use the certutil command to encode the user data. What's the best way to do this ? I was having a lot of trouble with this. Start your EC2 instance again, and validate that your script runs correctly. on Amazon EC2 with AWS CloudFormation, Run commands on your Windows instance at launch, Install a LAMP Web Server on Amazon Linux 2, User data and the Tools for Windows PowerShell. http://cloudinit.readthedocs.org/en/latest/index.html, Combine shell scripts and cloud-init directives, Deploying applications What data is stored in Ephemeral Storage of Amazon EC2 instance? Do I need a thermal expansion tank if I already have a pressure tank? Be sure to use the file:// prefix to specify the file. User_data is run only at the first start up. scripts after the instance starts. the BASH For this example, in a web browser, enter the URL of the PHP test file the directives Does Counterspell prevent from any further spells being cast on a given turn. the path to the interpreter you want to read the script (commonly information, see Auto-assign Public IP in the Network settings I will appreciate if someone can put some lights on why it is unable to execute the user-data. Amazon EC2 User Guide for Windows Instances. How to Set Up Apache Web Server in AWS EC2 Linux (Ubuntu) Instance? Where does this (supposedly) Gibson quote come from? Supported browsers are Chrome, Firefox, Edge, and Safari. If you are creating this EC2 instance just for learning purpose. What is the correct way to screw wall and ceiling drywalls? Open the Amazon EC2 console, and then select your instance. EC2 UserData script is not running on startup - Stack Overflow 2023, Amazon Web Services, Inc. or its affiliates. When prompted for confirmation, choose Stop. On services, tab search for EC2 and click on instances in the sidebar for creating an EC2 Instance. You need to allow port 80 (HTTP) and port 443 (HTTPS) in outbound SG rules - destination 0.0.0.0/0. I start an instance from a custom AMI, and specify a UserData script during launch configuration. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Copyright 2020 CloudKatha - All Rights Reserved, Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on LinkedIn (Opens in new window), Click to share on Telegram (Opens in new window), Click to share on WhatsApp (Opens in new window), How to Execute EC2 User Data Script using CloudFormation. First, enter a name tag for the instance. Commands wrapped in script tags are saved to a batch file, and commands wrapped in PowerShell tags are saved to a .ps1 file (corresponds to the User Data check box on the Ec2 Service Properties dialog box). This is a major lifesaver for trouble shooting user data issues. An instance profile provides the Redoing the align environment with a specific formatting, The difference between the phonemes /p/ and /b/ in Japanese. If you wanted to compare the instance types click on Compare Instance types it shows you all the types of instances as well as how much memory they have and so on. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. If you have Windows less than version 10, for example, Windows 7 or Windows 8, then you can use a .ppk format. Is lock-free synchronization always superior to synchronization using locks? This URL is the public DNS address of your instance followed by a following directive: This directive sends command output from your script to We also get some information about hostname, private DNS, Instance type, AMI details, and Key pair. If you finally want to get rid of this instance we can do an instance state and then terminate the instance. This script is going to update packages, then install the HTPD web server on the machine, and then write a file using httpd, an HTML file that will be a web server. I'll provide detailed walk-though. It's not needed. In this case, it will be an EC2 instance store ). AWS OpsWorks. flag). By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Now you are ready to create your custom AMI and remember to tick the NoReboot option! User data is a feature that allows customization of Amazon EC2 (virtual machine) when it is created and (if desired) also with each restart after they are provisioned. > > Or, I want to view the user data logs but don't know where they are. When I connect manually and run the python file it starts the script which is great and all, but is there a way to make sure that the script starts when the instance is booted up? Step 7. wizard. we get some information on the security group which was created called launch-wizard-1. User data formats - cloud-init 22.4.2 documentation Also on PSFTW Deploy SMA Server via Powershell DSC 7 years ago Hi, I'm currently sitting on my plane from Minneapolis to Dallas. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Run commands on your Windows instance at launch command. What is the purpose of this D-shaped ring at the base of the tongue on my hiking boots? Thanks for contributing an answer to Stack Overflow! amazon ec2 - user data scripts not working for me during starting of the EC2 instance - Server Fault user data scripts not working for me during starting of the EC2 instance Ask Question Asked 8 months ago Modified 8 months ago Viewed 708 times 0 All, I have user data script like below. The above code is a shell script. You modified or configured user data, but it doesn't run on instance launch. The #cloud-boothook make it works because it changes the script from a user_data mechanism to a cloud-boothook one that runs on each start. The nature of simulating nature: A Q&A with IBM Quantum researcher Dr. Jamie We've added a "Necessary cookies only" option to the cookie consent popup, Run a bash script after EC2 instance boots. Paste the content of the user data script in a file named ec2-user-data.sh. This will act as key-value pair and if you wanted to add additional tags to tag your instance differently, then you could click on Add additional tags. Connect and share knowledge within a single location that is structured and easy to search. expecting them to, or if you just want to verify that your directives Some are able to get it to work without it, not sure why. Make sure that the latest version of cloud-init is installed and functioning properly on your EC2 instance. You can store data on virtual drives or EBS volumes. To specify user data when you launch your instance, use the run-instances followed by a forward slash and the file name. UPDATE: I removed the sudo su and added an echo command for debugging. Did any DOS compatibility layers exist for any UNIX-like systems before DOS started to become outmoded? I have raised the issue to AWS support but still I couldn't find exact reason/bug which affects it. Navigate to EC2 instance, grab the instance public IP from instance details screen and hit the pubic IP. If the root The only different part I saw is if I run this script: cloud-init.noarch 0.7.2-8.33.amzn1 @amzn-main, cloud-init.noarch 0.7.2-8.33.amzn1 installed. The second option is to use an EBS volume as a root device. But please revise your permission based on uses to follow principal of least priviledge. Then, the file runs the user script. Do I need a thermal expansion tank if I already have a pressure tank? Open a PowerShell command window and run the following command: C:\ProgramData\Amazon\EC2-Windows\Launch\Scripts\InitializeInstance.ps1 -Schedule Disconnect from your Windows instance. The property UserData must be a base64-encoded text. In this article, we are going to launch our EC2 instance running Amazon Linux. However, in some cases, it may be necessary to run these scripts as a non-root user, for security or other reasons. Log your EC2 Linux user data and then ship it to the console logs One important thing to note here is the delete on termination should be Yes. Finally, well learn how to start, stop, and terminate our instance. If you click on it, copy, and then paste it, you press enter, its going to work. At a minimum, you should connect to the instance immediately after launch and change the password interactively. But I have came up with different solution for it. I do have script handy for that. User-Data used in this post. The size of a string of length n after base64-encoding is ceil ( n /3)*4. While the instance is in a stopping state and if we try to refresh our webpage its not going to work because you dont have the server running anymore. How to Provide the Static IP to a Docker Container? And for this, you go to a public IPv4 address, you copy this or you click on the open address and probably it doesnt work. On a Windows computer, use the --query option to get the coded user data and the certutil command to If you preorder a special airline meal (e.g. The text/x-shellscript content type provides the actual user script to be run by the cloud-init cloud_final_modules module. The #cloud-boothook solution is not working for me. Stop your instance. It is a bootstrap script to configure the instance at the first launch. EC2 UserData script is not running on startup Ask Question Asked 1 year, 9 months ago Modified 7 months ago Viewed 2k times Part of AWS Collective 2 I am trying to automate EC2 instance creation.