AWS Bucket (s3) Demo

This repository is just a demo of creating IAM User (setting the policy and authentication) and managing a bucket.

First, you need to create an AWS account following this link (if you don't have one): https://aws.amazon.com/resources/create-account/

Zero Cost Budget

Now, with the account created, navigate to Budgets and Create budget and chose Zero Spend Budget Template:

Create the IAM User

Enter in IAM Dashboard → Users → Create user. Now, type a username and select Attach polices directly and click on Create Policy. No Policy editor select the following checkboxes:

List -> ListBucket
Read -> GetObject
Write -> CreateBucket, PutObject

After selecting those checking boxes, mark the checkbox in Resources → All. Your json policy will be something like:

{
	"Version": "2012-10-17",
	"Statement": [
		{
			"Sid": "VisualEditor0",
			"Effect": "Allow",
			"Action": [
				"s3:PutObject",
				"s3:GetObject",
				"s3:CreateBucket",
				"s3:ListBucket"
			],
			"Resource": "*"
		}
	]
}

Click em next, choose a good name for the policy, and create the policy.

Doing that, you can go to Create user and click on refresh and select the created police.

You now have an IAM User, click on the IAM user and go to the tab Security credentials → Create access key. I choose the options in the image below:

When you finish, just download the .csv file with the user and key. You can access a tutorial provided by the AWS how to configure the authentication if you want to understand better. I'm not using the AWS CLI.

I created in my system a file on this path: ~/.aws/credentials and put my Access key Id and Secret access key that I downloaded before. You'll create the file like this:

[default]
aws_access_key_id = YOUR_ACCESS_KEY_FROM_CSV
aws_secret_access_key = YOUR_SECRET_KEY_FROM_CSV

I also created a ~/.aws/config with the following content:

[default]
region=us-east-1

Python Environment

You can find more information about Boto3 that is the AWS SDK for Python here.

• Create a new environment using your prefer environment manager and activate it:

$ python3 -m venv .venv
$ source .venv/bin/activate  # unix

• Install the dependencies:

$ pip install -r requirements.txt

• In your terminal, enter an interactive python interpreter (basically, typing python with the environment activated). Type the following commands:

>>> import boto3
>>> sts_client = boto3.client("sts")
>>> sts_client.get_caller_identity()

If returns something (response) without be an error, then you're authenticated. Note: this step is just to see if everything is alright. You can close the terminal.

Run the demo script

Running the following command: python demo.py will create on AWS a bucket with the name specified and upload a file, as you can see below:

At the end of the script will download the file from AWS bucket created before and save as the name of hi.txt.

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"PEOPLE'S DREAMS WILL NEVER END" - OP

_{Created by BrenoAV}