Using Object Storage with Atlas Buckets

Atlas Storage is S3-compatible, allowing you to use the AWS CLI for managing buckets and objects. You can also create and manage buckets via the Atlas Cloud web interface.

Via UI

Creating a Bucket

  1. Log in to the Atlas Cloud.
  2. Navigate to the Storage section.
  3. Click “Create Bucket”.
  4. Enter a unique bucket name.
  5. Set the quota (e.g., 1 GiB).
  6. Choose access policy, Public for web hosting, Private for secure storage (default).
  7. Click “OK”.

Uploading Files

  1. In the bucket’s detail page, go to the “Browse” tab.
  2. Click “Upload”.
  3. Select files or folders from your local machine.
  4. Confirm the upload.

Accessing Bucket Objects

Objects in public buckets can be accessed directly via HTTPS using either URL style:

  • Path-style: https://s3.runatlas.is/your-bucket/object-key
  • Virtual-hosted: https://your-bucket.s3.runatlas.is/object-key

Both styles work interchangeably. Virtual-hosted style is the S3 standard and is used by most AWS SDKs by default.

Setting Bucket Access

  1. In the bucket’s detail page, go to the “Details” tab.
  2. Edit the “Access Policy” (Public for web access, Private for secure storage).
  3. Save changes.

Note: For fine-grained permissions, use bucket policies via CLI.

Generating Pre-signed URLs

Pre-signed URLs are not supported in the Atlas UI. Use the CLI method below.

Via CLI

Prerequisites

  • AWS CLI installed on your local machine.
  • Access key and secret key from your bucket in Atlas Cloud (found in Buckets > “your bucket” > Details).

Alternatives to AWS CLI

s3cmd

s3cmd is another tool for S3-compatible storage. Download from s3tools.org/s3cmd.

  • Configure: s3cmd --configure (enter access key, secret, endpoint)
  • Upload: s3cmd put --recursive ./path/to/files s3://bucket/
  • Sync: s3cmd sync ./path/to/files s3://bucket/
s5cmd

s5cmd is a fast alternative. Download from github.com/peak/s5cmd.

  • Set env vars: export AWS_ACCESS_KEY_ID=... AWS_SECRET_ACCESS_KEY=... S3_ENDPOINT_URL=https://s3.runatlas.is
  • Upload: s5cmd --endpoint-url https://s3.runatlas.is cp --recursive ./path/to/files s3://bucket/
  • Sync: s5cmd --endpoint-url https://s3.runatlas.is sync ./path/to/files s3://bucket/

Configure AWS CLI

  1. Open your terminal and configure the AWS CLI with your Atlas credentials:

    aws configure --profile atlas
    • AWS Access Key ID: Enter your bucket access key.
    • AWS Secret Access Key: Enter your bucket secret key.
    • Default region name: us-east-1 (any AWS region string works; leaving it blank breaks signing on many SDKs).
    • Default output format: Leave blank or enter json.
  2. Set the endpoint URL for Atlas Storage:

    aws configure set endpoint_url https://s3.runatlas.is --profile atlas

    Alternatively, you can manually edit the AWS config files:

    Example ~/.aws/config:

    [profile atlas]
    endpoint_url = https://s3.runatlas.is

    Example ~/.aws/credentials:

    [atlas]
    aws_access_key_id = YOUR_ACCESS_KEY
    aws_secret_access_key = YOUR_SECRET_KEY

    Then run commands without --profile atlas or set the profile as an environment variable export AWS_PROFILE=atlas. Verify by listing your buckets:

    aws s3 ls --profile atlas

Creating a Bucket with aws CLI

To create a new bucket:

aws s3 mb s3://your-bucket-name --profile atlas

Uploading Files with aws CLI

To upload your static files to the bucket:

aws s3 cp ./path/to/your/static/files s3://your-bucket-name/ --recursive --profile atlas

Replace ./path/to/your/static/files with the path to your local static files directory, your-bucket-name with your bucket name.

To sync and update your files (uploads new/changed files, deletes removed ones):

aws s3 sync ./path/to/your/static/files s3://your-bucket-name/ --profile atlas

Setting Bucket Access with aws CLI

Buckets are private by default. To make objects publicly accessible, set a bucket policy (note "Effect": "Allow"):

aws s3api put-bucket-policy --bucket your-bucket-name --policy '{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Principal": "*",
      "Action": "s3:GetObject",
      "Resource": "arn:aws:s3:::your-bucket-name/*"
    }
  ]
}' --profile atlas

To remove public access (make private):

aws s3api delete-bucket-policy --bucket your-bucket-name --profile atlas

Generating Pre-signed URLs with aws CLI

Create a temporary URL (expires in 1 hour by default):

aws s3 presign s3://your-bucket-name/path/to/file --expires-in 3600 --profile atlas

For more AWS CLI commands, refer to the AWS CLI S3 documentation.