Storage Profiles

Overview

Storage profiles provide organizations with the ability to customize the storage location and method for their blobs. A blob consists of Terraform/OpenTofu state files, code, and run artifacts such as logs. You can configure profiles through the API or by navigating to Account → Security → Storage Profiles in the Scalr UI. Storage profiles can be configured at the account level or per environment.

Storage Options

Scalr offers two primary storage models:

Scalr-Managed Storage (Default)

Blobs are stored in a Scalr-managed bucket
This is the default option for all accounts
No additional configuration required

Customer-Managed Storage

Store your data in your own cloud storage:

AWS S3 buckets
GCP buckets
Azure Storage accounts

This option is ideal when you require:

Data storage within your own infrastructure
Specific data residency requirements

What Gets Stored

When using customer-managed storage, the following objects are stored in your bucket:

Terraform/OpenTofu state files
Configuration file versions
Plan JSON and binaries
Terraform/OpenTofu logs

Configuration Guides

AWS S3 Storage Profile

Prerequisites

An S3 bucket in AWS
OIDC authentication setup
IAM role with appropriate permissions

Setup Steps

Create S3 Bucket
- Create a bucket in AWS
- Ensure Scalr has access to the bucket
Configure OIDC Authentication
- In AWS IAM, add an identity provider:
  - URL: https://scalr.io
  - Create an appropriate audience value
Create IAM Role
- Select web identity and your OIDC provider
- Required permissions:
```
s3:ListBucket
s3:GetObject
s3:PutObject
s3:DeleteObject
```
- For KMS encryption, add:
```
kms:GenerateDataKey
kms:Decrypt
```

Configure Trust Policy
Add the following to your role's trust policy:

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "AllowScalrOIDCAccess",
            "Effect": "Allow",
            "Principal": {
                "Federated": "arn:aws:iam::111111111:oidc-provider/scalr.io"
            },
            "Action": "sts:AssumeRoleWithWebIdentity",
            "Condition": {
                "StringEquals": {
                    "scalr.io:aud": "my-awesome-audience"
                },
                "StringLike": {
                    "scalr.io:sub": "scalr:account:example"
                }
            }
        }
    ]
}

Create Storage Profile
Use the Scalr UI or API to create the profile:

UI:

API:

POST {{host}}/api/iacp/v3/storage-profiles
{
  "data": {
    "type": "storage-profiles",
    "attributes": {
      "backend-type": "aws-s3",
      "aws-s3-bucket-name": "example-aws-bucket",
      "aws-s3-audience": "my-awesome-audience",
      "aws-s3-region": "us-east-1",
      "aws-s3-role-arn": "arn:aws:iam::123456789012:role/your-role-name",
      "default": true,
      "name": "aws-s3-storage-profile"
    }
  }
}

GCP Storage Profile

Prerequisites

GCP bucket
Service account with Storage Admin role
Appropriate IAM permissions

Setup Steps

Create GCP Bucket
Recommended configuration:

Location type:         Multi-region
Default storage class: Standard
Public access:         Subject to object ACLs
Access control:        Fine-grained
Protection:            Soft Delete
Bucket retention:      None
Lifecycle rules:       None
Encryption:            Google-managed

Create Storage Profile
Use the Scalr UI or API to create the profile:

UI:

API:

  POST {{host}}/api/iacp/v3/storage-profiles
  {
    "data": {
      "type": "storage-profiles",
      "attributes": {
        "backend-type": "google",
        "default": true,
        "name": "gcp-storage-profile",
        "google-storage-bucket": "your-bucket-name",
        "google-project": "your-project-id",
        "google-credentials": {
          // Your GCP service account JSON key
        }
      }
    }
  }

AzureRM Storage Profile

Prerequisites

Azure subscription with AzureRM permissions
Azure AD application
Federated credentials setup

Setup Steps

Create Azure AD Application
- Navigate to Azure Active Directory → App registrations
- Create new registration
- Note the Application (client) ID
Configure Federated Credentials
- Go to Certificates & secrets → Federated credentials
- Add credential with:
  - Issuer: https://scalr.io
  - Subject identifier: scalr:account:<your-account-name>
  - Audience: Your OIDC audience value
  - Name: Descriptive name (e.g., "Scalr-Federated-Credential")
Grant Storage Access
- Navigate to your Storage Account
- Go to Access Control (IAM)
- Add role assignment:
  - Role: Storage Blob Data Contributor
  - Assign to: Your Azure AD application
Create Storage Profile

Use the Scalr UI or API to create the profile:

UI:

API:

POST {{host}}/api/iacp/v3/storage-profiles
{
  "data": {
    "type": "storage-profiles",
    "attributes": {
      "backend-type": "azurerm",
      "name": "azure-storage-profile",
      "default": true,
      "azurerm-storage-account": "your-storage-account",
      "azurerm-container-name": "your-container",
      "azurerm-tenant-id": "your-tenant-id",
      "azurerm-client-id": "your-client-id",
      "azurerm-audience": "your-audience"
    }
  }
}

Environment-Specific Configuration

Storage profiles can be assigned to environments through the UI or API. It can be done either when creating the environment or updating:

Sample API call:

PATCH {{host}}/api/iacp/v3/environments/<environment-id>
{
  "data": {
    "attributes": {
      "mask-sensitive-output": true,
      "remote-backend": true,
      "remote-backend-overridable": true
    },
    "relationships": {
      "storage-profile": {
        "data": {
          "type": "storage-profiles",
          "id": "<storage-profile-id>"
        }
      }
    },
    "type": "environments"
  }
}

Important Limitations

Profile Updates

After creating blob objects in a profile, only the profile name and credentials can be updated
Other fields cannot be modified

Profile Deletion

A storage profile cannot be deleted if it contains blob objects
All objects must be removed before deletion

Profile Migration

New blobs will use the new default profile
Existing blobs are not automatically migrated
Create a new profile and mark it as default to change storage for new objects