Starting from here, when you see command to be entered such as below, you will enter these commands into Cloud9 IDE. You can use the Copy to clipboard feature (right hand upper corner) to simply copy and paste into Cloud9. In order to paste, you can use Ctrl + V for Windows or Command + V for Mac.
Please run this command to generate SSH Key in Cloud9. This key will be used on the worker node instances to allow ssh access if necessary.
ssh-keygen
Press enter 3 times to take the default choices
Upload the public key to your EC2 region:
aws ec2 import-key-pair --key-name "eksworkshop" --public-key-material file://~/.ssh/id_rsa.pub