What is S3 Bucket in AWS?

Description of the image

An Amazon S3 bucket is a cloud storage solution offered by Amazon Web Services (AWS) that acts like a digital cabinet, letting you store vast amounts of data securely and cost-effectively.

An S3 bucket is a storage container in Amazon S3 - Simple Storage Service. It's used to store data in the form of objects within a highly scalable and secure environment. Think of AWS services as a data lake for enterprises, offering object data solution, making it easy to organize data and minimize costs.

Each object in the AWS services bucket is identified by a unique, user-assigned key, and the data itself can be anything from files and backups to images and videos.

S3 buckets are used by individuals, companies, and organizations of any sizes for a variety of use cases, such as web hosting, backup or data retrieval, store objects, data storage, disaster recovery, archive data and big data analytics.

Getting to Know Amazon S3 Bucket - Amazon Simple Storage Service

A public cloud storage resource, Amazon S3 bucket is one of the best services offered by Amazon Web Services that focuses on providing simple storage solutions and object storage. Storage costs in general are expensive, but S3 buckets are an affordable option for enterprises seeking options to store their large data.

Creating Amazon S3 buckets to store your valuable data is very similar to defining a folder structure and creating a new files or folders on the PC. You can create an S3 bucket to upload and store a variety of data, including documents, videos, photos, etc., and the best part is that each bucket offers unlimited storage options.

s3 bucket

Pic Credit: freecodecamp

In each of your AWS cloud accounts, you are allowed to create 100 Amazon S3 buckets; however, if the requirement of your enterprise is greater, you can request an increase of 1,000 Amazon S3 buckets. To increase the number of buckets, you have to request an increase in the service limit.   

While using Amazon S3 buckets is easy, there are a few naming guidelines that you must be aware of. AWS is a global platform, and thus, the name suggested for your buckets must be unique across all the AWS accounts you have. 

Amazon S3 helps you create buckets that are region-specific; therefore, you must choose AWS regions or the same AWS region that is geographically near to your current location. In this way, you can not only fulfill unique name requirements but also take advantage of several features associated with your geographical region. 

Key Features of S3 Bucket

The starting features of Amazon’s S3 bucket is what makes it an ideal choice for organizations across. The best features of the S3 bucket are as follows:

  • Data Security and monitoring with Access Control Lists (ACLs) and security features like S3 Block Public Access and Object Ownership
  • Object Storage solution management with management console and Amazon S3 APIs
  • Object replication with Amazon S3 Replication and Amazon S3 Replication Time Control
  • Amazon S3 Intelligent-Tiering feature for automated cost savings
  • Storage analytics and insights with S3 Storage Lens, S3 Class Analysis, and S3 Inventory features
  • Access Management with AWS IAM or Identity Access Management
  • S3 Object Lambda for data processing

Create Amazon s3 Bucket Step By Step

Step 1: Sign in to your AWS management console

Step 2: Navigate to services and search for Amazon S3 bucket

Navigate to services and search for Amazon S3 bucket

Step 3: It will open the Amazon s3 Portal, click on Create Bucket Button

 Create Bucket Button

Step 4: Now Choose your Bucket Name and click on Create Bucket Button

Choose your Bucket Name

Choose your Bucket Name


Step 5: Bucket is now created successfully, now upload your files or folders

Bucket is now created successfully


Step 6: Navigate to the Amazon s3 bucket link and click on the Upload Button

Step 7: Now Choose the files or folder and upload to Amazon S3

 Choose the files or folder and upload to Amazon S3
 Choose the files or folder and upload to Amazon S3

Step 8: Now the file is uploaded and it returns the Object URL and Amazon S3 URI

Object URL and Amazon S3 URI

Note: You can also manage the permission in Amazon s3 for objects stored(files) and access the uploaded file system through the Amazon S3 Portal.

Create AWS S3 Bucket by Command Line

Step 1: Use Homebrew to install the AWS CLI

brew install awscli

Step 2: Configure the AWS CLI

aws configure

Step 3: Create an S3 Bucket

aws s3api create-bucket --bucket your-bucket-name --region your-region

Example Command:
aws s3api create-bucket --bucket my-example-bucket --region us-west-2 --create-bucket-configuration LocationConstraint=us-west-2

Step 4: Verify the Bucket Creation

aws s3 ls

Create AWS S3 Bucket by Terraform

Step 1: Install Terraform ->

Step 2: Create a Directory for Your Terraform Configuration

mkdir terraform-s3
cd terraform-s3

Step 3: Create a Terraform Configuration File


# Specify the provider
provider "aws" {
  region = "us-west-2"  # Change this to your preferred region

# Create an S3 bucket
resource "aws_s3_bucket" "my_bucket" {
  bucket = "my-unique-bucket-name"  # Change this to your preferred bucket name
  acl    = "private"

  tags = {
    Name        = "MyBucket"
    Environment = "Dev"

# Optionally, add a bucket policy
resource "aws_s3_bucket_policy" "my_bucket_policy" {
  bucket =

  policy = jsonencode({
    Version = "2012-10-17"
    Statement = [
        Action    = "s3:GetObject"
        Effect    = "Allow"
        Principal = "*"
        Resource  = "${aws_s3_bucket.my_bucket.arn}/*"

Step 4: Initialize Terraform and Apply Configuration 

terraform init
terraform apply

Useful Commands for Amazon S3 Bucket

aws s3 mb s3://bucket-name
Create a new bucket.
aws s3 rb s3://bucket-name
Delete an empty bucket.
aws s3 rb s3://bucket-name --force
Delete a non-empty bucket (forces deletion of all objects in the bucket).
aws s3 ls
List all buckets.
aws s3 ls s3://bucket-name
List objects in a bucket.
aws s3 cp file.txt s3://bucket-name/
Copy a file to a bucket.
aws s3 cp s3://bucket-name/file.txt .
Copy a file from a bucket to the local system.
aws s3 cp --recursive folder s3://bucket-name/
Recursively copy a folder to a bucket.
aws s3 cp --recursive s3://bucket-name/ folder
Recursively copy a bucket to a local folder.
aws s3 mv file.txt s3://bucket-name/
Move a file to a bucket.
aws s3 mv s3://bucket-name/file.txt .
Move a file from a bucket to the local system.
aws s3 mv --recursive folder s3://bucket-name/
Recursively move a folder to a bucket.
aws s3 mv --recursive s3://bucket-name/ folder
Recursively move a bucket to a local folder.
aws s3 rm s3://bucket-name/file.txt
Delete a file from a bucket.
aws s3 rm --recursive s3://bucket-name/folder
Recursively delete a folder from a bucket.
aws s3 sync folder s3://bucket-name/
Synchronize a local folder to a bucket.
aws s3 sync s3://bucket-name/ folder
Synchronize a bucket to a local folder.
aws s3api create-bucket --bucket bucket-name
Create a new bucket with more configuration options.
aws s3api delete-bucket --bucket bucket-name
Delete a bucket.
aws s3api list-buckets
List all buckets.
aws s3api get-bucket-location --bucket bucket-name
Get the location of a bucket.
aws s3api put-bucket-acl --bucket bucket-name --acl ACL
Set the ACL for a bucket.
aws s3api get-bucket-acl --bucket bucket-name
Get the ACL of a bucket.
aws s3api put-bucket-policy --bucket bucket-name --policy file://policy.json
Set the bucket policy.
aws s3api get-bucket-policy --bucket bucket-name
Get the bucket policy.
aws s3api delete-bucket-policy --bucket bucket-name
Delete the bucket policy.
aws s3api put-bucket-lifecycle-configuration 
Set the lifecycle configuration for a bucket.
aws s3api get-bucket-lifecycle-configuration --bucket bucket-name
Get the lifecycle configuration of a bucket.
aws s3api delete-bucket-lifecycle --bucket bucket-name
Delete the lifecycle configuration of a bucket.
aws s3api put-bucket-cors --bucket bucket-name --cors-configuration file://cors.json
Set the CORS configuration for a bucket.
aws s3api get-bucket-cors --bucket bucket-name
Get the CORS configuration of a bucket.
aws s3api delete-bucket-cors --bucket bucket-name
Delete the CORS configuration of a bucket.
aws s3api put-bucket-tagging --bucket bucket-name --tagging file://tags.json
Set the tags for a bucket.
aws s3api get-bucket-tagging --bucket bucket-name
Get the tags of a bucket.
aws s3api delete-bucket-tagging --bucket bucket-name
Delete the tags of a bucket.

Why Use an Amazon S3 Bucket?

Cloud data storage is the ultimate solution for future proofing your critical data and preventing it from theft or unethical access. As an enterprise thriving in a competitive ecosystem, maintaining data is a crucial responsibility. 

Amazon's simple storage services are your ultimate solution to maximising data security and letting go of data theft or compromising worries. Instead, you can be assured that you store objects, organize storage, manage objects, manage buckets and restore the oldest data anytime necessary in the uploaded objects.

The data files stored in an Amazon S3 bucket can be used for several purposes. For instance, you can use the stored data for big data analytics, create user-generated content, disaster recovery, and much more. 

The dynamic use of S3 buckets and the unique identity access management policies make it stand out as an ideal storage solution. A few more reasons why you should be using S3 buckets in the present scenario are as follows:

  1. Amazon AWS account gives unlimited storage as compared to other AWS services.
  2. It is easy to retrieve infrequently accessed data stored whenever necessary.
  3. Authorized users can manage and audit Amazon S3 buckets according to preferences by AWS management console.
  4. S3 buckets have a user-friendly interface, and the process of managing them resembles managing files and folders. 
  5. Amazon S3 buckets come with IAM or Identity Access Management features that boost critical data security and allow you to secure each bucket and manage access with restricted access permission options. 
  6. It is the easiest way to upload objects or any type of data to Amazon S3 buckets and store it for future purposes.
  7. Amazon S3 buckets are durable solutions for large-scale businesses dealing with large amounts of data in their day-to-day operations.
  8. Storing data in S3 buckets makes disaster recoveries simpler. 

Top Five Benefits of Using an Amazon S3 Bucket

There are several benefits attached to using an Amazon S3 or Simple Storage Service bucket. Here are the top four reasons why you should be considering the same: 

Enhanced Security

Cloud storage is undoubtedly the most secure option for organizations to store their valuable data and digital objects. What makes Amazon S3 bucket the best among other cloud storage services is its advanced and versatile storage classes.

The Amazon S3 bucket allows you to secure every file with access permissions, and also has access control. It also lets you store multiple versions of each file, be they older or the newest. You can also use S3's IAM or the Identity Access Management feature to enhance storage resources security. 

Data Encryption

When it comes to securing your data in Amazon S3 storage, you have two main encryption features: server-side encryption and client-side encryption. Both methods scramble your information, but they differ in who holds the keys and handles the encryption process.

Server-side encryption— You send your critical data to S3, and the service encrypts it on its servers before storing it. When you need your data back, S3 decrypts it for you. S3 manages the encryption keys, so you don't have to worry about data security.

Client-side encryption— You encrypt your data on your own device eg. Mobile applications, using your chosen encryption key. The already-encrypted data is then uploaded to S3. When you need to access your log files, you use your key to decrypt the data on your end. With client-side encryption, authorized users have complete control over the encryption keys and process.

Simplified Data Availability and Storage

If you are tired of managing your data and maintaining its security, you can leave all your worries to Amazon's Simple Storage Services or the Amazon S3 bucket. Amazon S3's user-friendly interface enables you to manage and optimize data transfers, security options (access grants), and storage classes. 

Easy to Migrate

Amazon S3 bucket is the most compatible storage solution for cloud data migration. These simple storage services can be integrated with existing systems without much hassle. The best part about using the S3 bucket is its ease of transferring large amounts of data and the several options it offers for transferring them. 

Cost Effective

Cloud storage can be expensive, especially when you are looking at storing large amounts of data. But the scenario is different with Amazon S3 buckets. No matter how much data you store in the buckets, you only have to pay for the data you are using. For the first 50 TB storage, you just have to pay $0.023 per GB per month. For the next 450 TB, the required monthly cost is $0.022 per GB, and for storage over 500 TB, the monthly cost that you must pay is only $0.021 per GB.

Summing Up!

Amazon S3 is not just storage; it's an investment in your organization's future. The Amazon S3 bucket is your ultimate and scalable foundation used to build your organization's data lakes. From simplifying data management and data analytics to offering you versatile options in storage classes, the Amazon S3 object storage service is the best of its kind and can help you eliminate storage-related worries. 

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