Mount S3 to an EC2 Instance

Create an IAM role

• Open IAM
• Select Roles
• Create Role
• Select AWS service / EC2
• Search AmazonS3FullAccess
  • Select it
  • Add any other rights you need
    • Remember only one IAM role can be bound to EC2
  • Click Next
• Give it a name
  • Click Create Role

Bind the Role to a EC2 Instance

• Open EC2
• Select the Instance
  • Select Actions > Security > Change Security Groups.
  • Connect the IAM role

Install Software

• Connect to the instance
• Run the commands

sudo apt-get update -y
sudo snap install aws-cli --classic
sudo apt-get install s3fs -y

• Create a mount point

sudo mkdir /mnt/s3-bucket

Test it

sudo s3fs 'bucket_name' /mnt/s3-bucket -o iam_role=S3AccessForEC2 -o use_cache=/tmp -o allow_other -o uid=1001 -o mp_umask=002 -o multireq_max=5 -o use_path_request_style -o url=https://s3-aws_region.amazonaws.com 

Debugging

Add the lines

-o dbglevel=info -f -o curldbg

Making it permanent

Open FSTAB

sudo nano /etc/fstab

Add the lines

s3fs#bucket_name /mnt/s3-bucket fuse _netdev,iam_role=S3AccessForEC2,allow_other 0 0

References

https://surajblog.medium.com/mount-aws-s3-bucket-on-amazon-ec2-9f18b48d4f04