How can I use the terraform for creating and managing IAM policy documents, and defining permission for a research project?
I am currently engaged in a particular task that is related to working on a research project that requires the management of AWS IAM policies by using the terraform. Discuss with me how can I use the terraform to create and manage IAM policy documents, define permission for specific resources, and ensure security best practices such as least privilege access and regular policy review.
In the first context of AWS, Here is the approach given of how you can create and manage AWS IAM policy document, define permission, and ensure security best practices.
Creating IAM policy document with Terraform
You can use the aws_iam_policy_document of terraform data source or Resources by defining the IAM policy document in JSON format.
Data “aws_iam_policy_document” “example_policy” {
Statement {
Actions = [“s3:GetObject”]
Resources = [“arn:aws:s3:::example-bucket/*”]
}
Statement {
Actions = [“ec2:Describe*”]
Resources = [“*”]
}
}
Defining permission and attaching policies to IAM roles/users/groups
You can use the aws_iam_policy and aws_iam_policy_attachement of terraform resource by defining IAM policies and attaching them for IAM roles, users, or group.
Resource “aws_iam_policy” “example_policy” {
Name = “ExamplePolicy”
Description = “Example IAM policy”
Policy = data.aws_iam_policy_document.example_policy.json
}
Resource “aws_iam_role” “example_role” {
Name = “ExampleRole”
Assume_role_policy = <