S3 Bucket

Create an S3 bucket for AWS storage

Amazon Simple Storage Service (Amazon S3) is an object-storage service offering scalability, data availability, security, and performance. You can store and protect any data for data lakes, cloud-native applications, and mobile apps. Read more about S3 and its capabilities here.

To configure an S3 bucket for auditing, see the Auditing topic.

Creating an S3 bucket

When creating an S3 bucket using the duplocloud_s3_bucket resource in Terraform, a unique identifier is appended to the bucket name to ensure global uniqueness, as AWS requires. This identifier is the AWS account ID and a prefix with the tenant name (duploservices-<tenant_name>-) is also added. This naming convention allows for creating buckets with the same name across multiple tenants while maintaining global uniqueness.

  1. In the DuploCloud Portal, navigate to Cloud Services -> Storage.

  2. Click the S3 tab.

  3. Click Add. The Create an S3 Bucket pane displays.

  4. In the Name field, enter a name for the S3 bucket.

  5. In the Region list box, select the region. You can choose Region Tenant, Default Region, or Global Region and specify Other Region to enter a custom region you have defined.

  1. Optionally, select Enable Bucket Versioning or Object Lock. These settings are disabled by default unless you Enable Bucket Versioning Tenant-wide in Tenant Settings. For more information about S3 bucket versioning, see the AWS documentation.

  2. Click Create. An S3 bucket is created.

Enable Bucket Versioning must be selected to use Object Lock.

Enabling bucket versioning for S3 buckets at the Tenant level

You can configure the Tenant to enable bucket versioning by default.

  1. In the DuploCloud Portal, navigate to Administrator -> Tenants.

  2. Click on the Tenant name in the list.

  3. In the Settings tab, click Add. The Add Tenant Feature pane displays.

  4. Click Add. The Create an S3 Bucket pane displays.

  5. From the Select Tenant Feature list box, select Default: Enable bucket versioning for new S3 buckets.

  6. Select Enable.

  7. Click Add. Bucket versioning will be enabled by default on the Create an S3 Bucket pane when creating a new S3 bucket.

With this setting configured, all new S3 buckets in the Tenant will automatically enable bucket versioning.

Setting S3 bucket permissions and policies

It is advisable to manage SES-specific buckets not managed by DuploCloud independently. Duplo's default bucket policy enforces encryption, which complements SES's automatic encryption for incoming emails. You should manage your bucket policies if DuploCloud overwrites the custom policy to update an S3 Bucket defined in DuploCloud for SES.

Manage your S3 Bucket by setting managed_policies ignore in the DuploCloud Terraform provider, select Ignore bucket policies in the DuploCloud Portal when creating or editing your S3 Bucket.

You can set specific AWS S3 bucket permissions and policies using the DuploCloud Portal. Permissions for virtual machines, Lambda functions, and containers are provisioned automatically through Instance profiles, so no access key is required in your application code. However, when coding your application, be aware of these guidelines:

  • Use the IAM role or Instance profile to connect to services.

  • Only use the AWS SDK constructor for the region.

Set S3 Bucket permissions in the DuploCloud Portal:

  1. In the DuploCloud Portal, navigate to Cloud Services -> Storage.

  2. Click the S3 tab.

  3. From the Name column, select the bucket for which you want to set permissions. The S3 Bucket page for your bucket displays.

  4. In the Settings tab, click Edit. The Edit a S3 Bucket pane displays.

  5. From the KMS list box, select the key management system scope (AWS Default KMS Key, Tenant KMS Key, etc.).

  6. Select permissions: Allow Public Access, Enable Access Logs, or Enable Versioning.

  7. Select an available Bucket Policy: Require SSL/HTTPS or Allow Public Read. To select the Allow Public Read policy, you must select the Allow Public Access permission. To ignore all bucket policies for the bucket, choose Ignore Bucket Policies.

  8. Click Save. In the Details tab, your changed permissions are displayed.

Use this table to map the permission and policies options above with the YAML key/value pair.

From the S3 Bucket page, you can set bucket permissions directly in the AWS Console by clicking the >_Console icon. You have permission to configure the bucket within the AWS Console session, but no access or security-level permissions are available.

Add a custom prefix for S3 Buckets

DuploCloud provides the capability to specify a custom prefix for S3 buckets, enhancing naming conventions and organizational strategies. Before adding custom prefixes, ensure the ENABLEAWSRESOURCEMGMTUSINGTAGS property is set to True in DuploCloud by contacting the DuploCloud Support Team using your Slack channel. This setting allows for a more tailored bucket naming approach that can reflect your organization's naming conventions or project identifiers.

Avoid specifying system-reserved prefixes such asduploservices.

  1. In the DuploCloud Portal, navigate to Administrator -> System Settings.

  2. Click the System Config tab.

  3. Click Add. The Add Config pane displays.

  4. From the Config Type list box, select AppConfig.

  5. From the Key list box, select Prefix all S3 Bucket Names.

  6. In the Value field, enter the custom prefix.

  7. Click Submit.

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