S3 Basics Demo

Learn how to create, configure, and manage an Amazon S3 bucket. In this step-by-step guide, we’ll cover the global namespace, bucket configuration, uploading and organizing objects, and safely deleting buckets.

Accessing the S3 Console

1. Sign in to the AWS Management Console and search for S3.
2. Depending on your account state, you’ll see one of two views:

If you have no buckets, an intro screen appears with a Create bucket button:

Otherwise, you’ll see your existing buckets and the Create bucket option:

Creating a Bucket

1. Click Create bucket.
2. Enter a globally unique name. If your choice is taken (e.g., demo), you’ll see an error:
   

3. Choose a unique name (for example, kodekloud-demo-123):
   

4. Select the target region (e.g., US East (N. Virginia) us-east-1).

5. Configure features or leave defaults:

   • Object ownership & ACLs
   • Block public access
   • Versioning & encryption
   • Tags & advanced settings

   
   

6. Click Create bucket. You’ll see your new bucket in the list:
   

Exploring Bucket Details

Click your bucket’s name to open its overview. You’ll find tabs for Objects, Properties, Permissions, Metrics, and Management.

In Permissions, manage ACLs or bucket policies:

Under Metrics, view CloudWatch data like total storage and object count. Management lets you set lifecycle rules, replication, inventory, and access points:

Uploading Objects

1. Go to the Objects tab and click Upload.
2. Drag and drop files or use Add files. For example, upload pexels-julio-nery-1687147.jpg (2.7 MB JPEG):
   
3. Accept defaults for permissions, storage class (Standard), and skip advanced settings.
4. Click Upload and wait for completion:
   
5. After closing the dialog, you’ll see your file listed:
   

Object Details

Click the object name to inspect:

• Size, last modified, and region
• Object URI and ARN
• ETag, object URL
• Per-object settings: storage class, SSE, checksums, tags, and locks

Accessing Objects

Attempting to GET the object URL anonymously returns:

<Error>
  <Code>AccessDenied</Code>
  <Message>Access Denied</Message>
  <RequestId>PXX0A25XAZ252WZ0</RequestId>
  <HostId>Rh0s1Dk51BtkU1N0BXY4j2p2KLvWeg5eSu/Ry1NkxAMXFtbFQKTg=</HostId>
</Error>

Organizing Objects with Folders

Although S3 has a flat key-value structure, the console lets you simulate folders:

1. Click Create folder, enter a name (e.g., food), and confirm:
   
2. Open the folder and upload images (burger, pizza, sandwich, steak):
   

Each object key is prefixed with food/. Permissions and access behave identically to root-level objects.

Deleting Objects

1. Select the object(s) you want to remove.
2. Click Delete, type permanently delete, and confirm:
   

Moving Objects

S3 doesn’t support a native “move” operation. Instead, you rename an object by copying it to a new key prefix:

1. Create a new folder (e.g., test) under your bucket:
   
2. Select Actions > Move, set the destination key (e.g., food/test/steak.jpg), or browse and apply. The object is effectively renamed under the new prefix.

Deleting the Bucket

To delete an S3 bucket, it must be empty:

1. Attempting to delete a non-empty bucket shows an error:
   
2. Click Empty, type permanently delete, and confirm to clear contents.
3. Finally, select Delete bucket, enter the bucket name, and confirm.

Links and References

• Amazon S3 Documentation
• Bucket Naming Rules
• AWS Management Console