and the files contained within it. Not the answer you're looking for? Run EC2 user-data script as non-root user Ask Question Asked 10 years, 9 months ago Modified 3 years, 9 months ago Viewed 12k times 8 I'm able to run a user-data script successfully, but it runs as root. Error using SSH into Amazon EC2 Instance (AWS). Running Docker on EC2 using CodeCommit | by Dhaval Nagar | AppGambit | Medium Write Sign up Sign In 500 Apologies, but something went wrong on our end.. The size of a string of length n after base64-encoding is ceil ( n /3)*4. rm /var/lib/cloud/instance/sem/config_scripts_user. volume. But dont worry, If you want it in JSON, I will provideJSONtemplate as well. User data is limited to 16 KB, in raw form, before it is base64-encoded. For additional debugging information, you can create a Mime multipart How to get an AWS EC2 instance ID from within that EC2 instance? But please revise your permission based on uses to follow principal of least priviledge. instance that can be used to perform common automated configuration tasks and even run @LechMigdal Yes I did, i don't really see any error, should I post the output here? If you your AMI is created from AWS AMIs, Ec2-user has full permissions including sudo. Its composed of many things at a high level. Have a look on the script below in case you need that. For security reasons, create an IAM policy to restrict the users who are allowed to add or remove user data through the ModifyInstanceAttribute API. In this post, we learnt to execute EC2 user data script using CloudFormation. Be sure to use the script is not run interactively, you cannot include commands that require user use with Amazon Linux 2, and the commands and directives may not work for other Linux User data scripts require a specific syntax. Then, the file runs the user script. The #cloud-boothook solution is not working for me. I notice that in your supplied code, one example refers to /home/ec2-user/user-script/output.txt (with a subdirectory) and one example refers to /home/ec2-user/user-script-output.txt (no subdirectory). Thanks for letting us know we're doing a good job! By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. If you are using a custom AMI and had UserData passed in the instance you generated the AMI from, then, the cloud-init per-instance(i.e., on first boot, in this case the UserData you pass when you create an instance from your custom AMI) section will not be executed as it does not recognize this as first boot.

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