Rancher EBS - Issue creating a volume with AWS

Dear community,
I am currently learning how to take benefit of Rancher while combining it with AWS services.
After creating volumes in AWS and creating a volume in Rancher (Infrastructure>Storage>Volumes), I have an issue using from any container. Each time, I try to link it, I end up having an error: (Expected state running but got error: Error response from daemon: create data: VolumeDriver.Create: Failed in create: Unable to locate credentials. You can configure credentials by running “aws configure”.)
Volumes were created in AWS, IAM in place with admin rights… I don’t really know where to go now to troubleshoot this error. Any assistance will be appreciated.