Gets IAM Role Security Credentials from instance metadata and export they in bash session envirovment. Secured edition.

ec2-get-security-credentials

#!/bin/bash

export-aws () {

# gets iam security credentials from instance metadata and export in envirovment for runtime script
# after script finished credentials is gone away
# system must have awscli&jq preinstalled
# converted to function

# Usage: export-aws ROLENAME

if [ -n "$1" ] ; then
    # get security credentials from instance metadata into CR var
    CR=$(curl -s http://169.254.169.254/latest/meta-data/iam/security-credentials/$1/)

    export AWS_ACCESS_KEY_ID=$(echo $CR | jq -r '.AccessKeyId')
    export AWS_SECRET_ACCESS_KEY=$(echo $CR | jq -r '.SecretAccessKey')
    export AWS_SESSION_TOKEN=$(echo $CR | jq -r '.Token')
fi
}