# Migrate DigitalOcean Spaces Bucket: Private Document Library

## Summary
Move object storage from DigitalOcean Spaces bucket to Ample, one component at a time. Destination verified on Ample: a role-to-document access model with negative tests (401 without identity, 403 for the wrong role) and a private-bucket round-trip for the allowed role (private=ok).

- **Source Procedure**: Inventory the Space with `rclone size` or `s3cmd du`. 
- **Not Migrated Automatically**: Spaces CDN settings, CORS rules, and per-object ACLs are not migrated; publish an Ample bucket for public delivery. 
- **Cutover**: Switch the app's S3_* environment to the Ample bucket with a redeploy, verify reads and writes, keep the Space read-only until confirmed. 
- **Rollback**: Keep the source untouched until you confirm; nothing at the source is changed or deleted by this guide.

## Workflow Steps
1. **Inventory the source**: List what DigitalOcean Spaces bucket provides beyond the component you are moving. Out of scope here: Spaces CDN settings, CORS rules, and per-object ACLs are not migrated; publish an Ample bucket for public delivery.
2. **Source step 1**: Inventory the Space with `rclone size` or `s3cmd du`.
3. **Source step 2**: Copy objects with `rclone sync` from the Spaces endpoint to the Ample bucket endpoint using the issued credentials (path-style).
4. **Source step 3**: Verify a sample of objects by size and checksum after the copy.
5. **Create the destination bucket and copy**: Create the bucket, copy with rclone or the S3 CLI in path-style mode using the issued credentials, then pass the credentials to the app as encrypted S3_* variables.
   - **Command**: `ample bucket create --name`
6. **Validate before cutover**: Run the app's own checks and, for data, compare counts and checksums; the example checks are the pattern self-tests (/p/private-document-library).
7. **Cut over**: Switch the app's S3_* environment to the Ample bucket with a redeploy, verify reads and writes, keep the Space read-only until confirmed.
8. **Rollback**: Point DNS or configuration back to the source. The source was never modified; deletion is a separate, user-executed step after validation.

## Prerequisites
- Authorized access to the DigitalOcean Spaces bucket source and its export tooling.
- An inventory of every component in scope and out of scope.
- A validated backup or copy before any cutover.
- An Ample account token with `servers:write`, `buckets:write`.

## Limitations
- Documentation only: nothing is executed automatically and no execution binding is offered.
- No full source-product parity is claimed: Spaces CDN settings, CORS rules, and per-object ACLs are not migrated; publish an Ample bucket for public delivery.
- Verified on the node-22 template at s-1vcpu-1gb; region, compliance and request-duration limits are unknown.

## Success Checks
- **Destination app responds on its public URL**: `http_get` path: `/`, expect: `ample canary express patterns`.
- **Private-document-library check from the destination example**: `http_get` path: `/p/private-document-library`, expect: `see the pattern fixture checks`.
- **Data or object counts and checksums match the source**: `manual`, expect: `operator comparison before cutover`.

## Examples
- **Express pattern fixture (destination)**:
  - **Description**: Verified destination basis: private document library.
  - **Source Ref**: `tests/deploy-canaries/express-patterns`.

## Cost Estimate
- **Currency**: USD
- **Monthly Amount**: 5.0
- **Basis**: Size prices from pricing.toml (loaded by the API) at build revision 1ac5595375130d45290090e82ed0f554ccd45405-dirty.
- **Components**:
  - **App server**: size: `s-1vcpu-1gb`, quantity: 1.0, monthly amount: 5.0.
  - **Note**: Destination always-on monthly price of the tested sizes; apps auto-pause when idle. Source costs are unknown to Ample.