AWS Basics for DevOps Learners: How to Use User Data and IAM Roles

<p>User data is a feature of Amazon EC2 that allows you to pass custom configurations and commands to your EC2 instances when you launch them. You can use user data to perform common automated tasks such as installing software, configuring settings, running scripts, etc. User data can be very useful for DevOps learners who want to save time and manual effort every time they launch an instance and want to install any application on it like Apache, docker, Jenkins, etc.</p> <p>You can pass two types of user data to Amazon EC2: shell scripts and cloud-init directives. Shell scripts are executable commands that run on the instance&rsquo;s operating system, while cloud-init directives are instructions that are processed by a tool called cloud-init that runs on the instance during boot. Cloud-init can perform more advanced tasks such as setting up users, mounting volumes, writing files, etc.</p> <p><a href="https://medium.com/@ajitfawade/aws-basics-for-devops-learners-how-to-use-user-data-and-iam-roles-b59dbb4be73a"><strong>Read More</strong></a></p>