Give the user a name (e.g., galaxy_cloudman), attach existing policies for EC2FullAccess and S3FullAccess. After reviewing the configuration, create the user. Once created, make a note of and download the API access credentials. Keep these credentials safe because they are all that is required to use your cloud account.
Log into the AWS Management Console and click on Services → IAM → Users → Add user.
Give the user a name (e.g., galaxy_cloudman), attach existing policies for EC2FullAccess and S3FullAccess. After reviewing the configuration, create the user. Once created, make a note of and download the API access credentials. Keep these credentials safe because they are all that is required to use your cloud account.
See: https://galaxyproject.org/cloudman/getting-started/