This quick howto describes how to mount Amazon Simple Storage (S3) into Amazon Elastic Compute Cloud (EC2) instance. In my case is it micro instance with Basic 64-bit Amazon Linux AMI 2011.09.

First of all download s3fs

wget http://s3fs.googlecode.com/files/s3fs-1.61.tar.gz

Decompress it

tar -xzf s3fs-1.61.tar.gz

Now install dependencies. This step can be different for another Amazon Machine Image.

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

Compile it and install

cd s3fs-1.61
make
sudo make install
sudo ln -s /usr/local/bin/s3fs /usr/bin/s3fs

Configure it

sudo touch /etc/passwd-s3fs && sudo chmod 640 /etc/passwd-s3fs
sudo vim /etc/passwd-s3fs (add your credentials in format accessKeyId:secretAccessKey)

Mount it

sudo mkdir /mnt/s3
sudo s3fs S3_BUCKET_NAME /mnt/s3 -o allow_other

allow_other option allows other users than root to access mounted bucket.

You can umount bucket using sudo umount /mnt/s3.