Simplest Amazon S3 - Ruby

The simplest way to send upload files to Amazon Web Service: Simple Storage Service - AWS:S3.

How to test

1. git clone...
2. Start an terminal on this project directory
3. Install dependencies with command: bundle install
4. Start Rack with command: ACCESS_KEY_ID=YOUR_ACCESS_KEY SECRET_ACCESS_KEY=YOUR_SECRET BUCKET_NAME=YOUR_BUCKET rackup
5. Open browser at: http://localhost:9292

This page allows upload a file to informed AWS bucket.

How to config Amazon S3 Bucket

1. Create a new user, using AIM
2. Create a bucket on S3
3. Config your bucket:

{
    "Version": "2012-10-17",
    "Id": "<< UNIQUE_NAME_bucket_policy >>",  <=== Give a unique name to this bucket policy
    "Statement": [
        {
            "Sid": "<< UNIQUE_NAME_bucket >>", <== Give a unique name to this bucket policy
            "Effect": "Allow",
            "Principal": {
                "AWS": "arn:aws:iam::..."  <====== <User ARN do IAM>
            },
            "Action": "s3:ListBucket",
            "Resource": "arn:aws:s3:::..." <====== <Bucket ARN>
        },
        {
            "Sid": "UNIQUE_NAME_bucket_files", <== Give a unique name to this files bucket policy
            "Effect": "Allow",
            "Principal": {
                "AWS": "arn:aws:iam::..." <======= <User ARN do IAM>
            },
            "Action": [
                "s3:GetObject",
                "s3:PutObject"
            ],
            "Resource": "arn:aws:s3:::.../*" <==== <Bucket ARN>/
        }
    ]
}

This policy will allows your newly created user to:

• List your bucket
• Add files to this bucket
• Read files from this bucket