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Wednesday, June 24, 2020

Authorising AWS using temporary credentials from a role

Using the Access and secret key can result in a significant security issues if compromised.

So its better to use the role based authentication instead. But running the scripts might not be that easy with the role. So you can use the temporary credentials which are valid for 15minutes created by the role and authenticate the aws services.

This can come in handy while configuring the jobs in jenkins , running shell scripts etc.

So below is the process of how to achieve this.

 aws sts assume-role --role-arn arn:aws:iam::189786521149:role/ec2fullpermission --role-session-name "Session1" --profile prod2 > temp-creds.txt  
 # set the temporary credentials as the default AWS credentials in your console session  
 export AWS_ACCESS_KEY_ID=`cat temp-creds.txt | grep -w AccessKeyId | awk '{print $2}' | sed 's/"//g;s/,//g'`  
 export AWS_SECRET_ACCESS_KEY=`cat temp-creds.txt | grep -w SecretAccessKey | awk '{print $2}' | sed 's/"//g;s/,//g'`  
 export AWS_SECURITY_TOKEN=`cat temp-creds.txt | grep -w SessionToken | awk '{print $2}' | sed 's/"//g;s/,//g'  

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