How to Mount S3 bucket with EC2 linux Instance using IAM Roles.

In this tutorial, we will show you how to mount S3 bucket as a mount point to linux Instance

In my previous blog you will find ,,How to Mount S3 bucket with EC2 linux Instance using Access and Secret Key.

S3FS is a FUSE filesystem application backed by amazon web services simple storage service. S3FS can operate in a command mode or a mount mode. In mount mode, S3FS will mount an amazon S3 bucket (that has been properly formatted) as a local file system.

Why S3 bucket Instead of EFS sort of solutions?

We have EFS from Amazon but it’s costly and even the same data were used for their analytics solution. So we thought to use S3 to satisfy both the requirement.

Following are the steps below to mount your S3 bucket to your linux Instance.

Step 1- Update Your System

Sudo yum update

Step 2- Install the s3fs on linux

sudo yum install automake fuse fuse-devel gcc-c++ git libcurl-devel libxml2-devel make openssl-devel

Step 3- Download s3fs code from github

git clone https://github.com/s3fs-fuse/s3fs-fuse.git

Step 4- Compile and install the code

cd s3fs-fuse
./autogen.sh
./configure --prefix=/usr --with-openssl
make
sudo make install

Step 5- check if the s3fs is installed in your system or not

which s3fs

Step 6- Create an IAM policy and attached to an ec2 insance

Navigate to IAM policyand create s3-mounting-policy

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "s3:GetObject",
                "s3:DeleteObject",
                "s3:ListObject",
                "s3:PutObject"
            ],
            "Resource": [
                "arn:aws:s3:::mounting0001/*"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "s3:ListBucket"
            ],
            "Resource": [
                "arn:aws:s3:::mounting0001"
            ]
        }
    ]
}

save

Create a role S3-mounting-role and attached this policy

Navigate to EC2 console and attached this iam role S3-mounting-role

Action > Instance Setting > Attach/Replace IAM Role

Step 6- Now create a mount point

sudo mkdir /demobucket

Step 7- Add the below entry in fstab

sudo vi  /etc/fstab

s3fs#mounting0001 /demobucket fuse _netdev,allow_other,uid=1002,gid=1002,iam_role=S3-mounting-role,use_cache=/tmp,url=https://s3.us-east-1.amazonaws.com 0 0

sudo mount -a

it will mount this bucket as a directory

Step 8- Check the mount point

df -h

Here you can see we have successfully mounted the S3 bucket on your EC2 Instance

Congratulations….. you follow all the steps and mounted S3 bucket to your EC2 Instance