# Export Bundle Scheduler Contract

**Contract ID:** `CONTRACT-EXPORT-BUNDLE-009`
**Version:** 1.0
**Status:** Published
**Last Updated:** 2025-12-05

## Overview

This contract defines the export bundle job scheduling and manifest format used by the Export Center. It covers job definitions, scheduling, output formats, and attestation integration.

## Implementation References

- **Export Center:** `src/ExportCenter/`
- **API Spec:** `src/Api/StellaOps.Api.OpenApi/export-center/openapi.yaml`

## Data Models

### ExportBundleJob

Job definition for scheduled exports.

```json
{
  "job_id": "job-001",
  "tenant_id": "default",
  "name": "daily-vex-export",
  "description": "Daily VEX advisory export",
  "query": {
    "type": "vex",
    "filters": {
      "severity": ["critical", "high"],
      "providers": ["github", "redhat"]
    }
  },
  "format": "openvex",
  "schedule": "0 0 * * *",
  "destination": {
    "type": "s3",
    "config": {
      "bucket": "exports",
      "prefix": "vex/daily/"
    }
  },
  "signing": {
    "enabled": true,
    "predicate_type": "stella.ops/vex@v1"
  },
  "enabled": true,
  "created_at": "2025-12-05T10:00:00Z",
  "last_run_at": "2025-12-05T00:00:00Z",
  "next_run_at": "2025-12-06T00:00:00Z"
}
```

### Export Formats

| Format | Description | MIME Type |
|--------|-------------|-----------|
| `openvex` | OpenVEX JSON | application/json |
| `csaf` | CSAF VEX | application/json |
| `cyclonedx` | CycloneDX VEX | application/json |
| `spdx` | SPDX document | application/json |
| `ndjson` | Newline-delimited JSON | application/x-ndjson |
| `json` | Standard JSON array | application/json |

### Schedule Format

Cron expressions (5 fields):
```
┌───────────── minute (0-59)
│ ┌───────────── hour (0-23)
│ │ ┌───────────── day of month (1-31)
│ │ │ ┌───────────── month (1-12)
│ │ │ │ ┌───────────── day of week (0-6, Sunday=0)
│ │ │ │ │
* * * * *
```

Examples:
| Schedule | Description |
|----------|-------------|
| `0 0 * * *` | Daily at midnight |
| `0 */6 * * *` | Every 6 hours |
| `0 0 * * 0` | Weekly on Sunday |
| `0 0 1 * *` | Monthly on the 1st |

### Destination Types

#### S3 Destination

```json
{
  "type": "s3",
  "config": {
    "bucket": "my-exports",
    "prefix": "vex/",
    "region": "us-east-1",
    "endpoint": "https://s3.amazonaws.com"
  }
}
```

#### File Destination

```json
{
  "type": "file",
  "config": {
    "path": "/exports/vex/"
  }
}
```

#### Webhook Destination

```json
{
  "type": "webhook",
  "config": {
    "url": "https://example.com/webhook",
    "headers": {
      "Authorization": "Bearer ${SECRET}"
    }
  }
}
```

### ExportBundleManifest

Manifest for completed export.

```json
{
  "bundle_id": "bundle-001",
  "job_id": "job-001",
  "tenant_id": "default",
  "created_at": "2025-12-05T00:00:00Z",
  "format": "openvex",
  "artifact_digest": "sha256:abc123...",
  "artifact_size_bytes": 1048576,
  "query_signature": "sha256:def456...",
  "item_count": 150,
  "policy_digest": "sha256:...",
  "consensus_digest": "sha256:...",
  "score_digest": "sha256:...",
  "attestation": {
    "predicate_type": "stella.ops/vex@v1",
    "rekor_uuid": "24296fb24b8ad77a...",
    "rekor_index": 12345,
    "signed_at": "2025-12-05T00:00:01Z"
  }
}
```

## API Endpoints

### Job Management

#### Create Export Job

```
POST /api/v1/export/jobs
Content-Type: application/json
Authorization: Bearer <token>

{
  "name": "daily-vex-export",
  "query": {...},
  "format": "openvex",
  "schedule": "0 0 * * *",
  "destination": {...}
}

Response: 201 Created
{
  "job_id": "job-001",
  ...
}
```

#### Update Job

```
PUT /api/v1/export/jobs/{job_id}
Content-Type: application/json

{
  "schedule": "0 */12 * * *",
  "enabled": true
}

Response: 200 OK
```

#### Delete Job

```
DELETE /api/v1/export/jobs/{job_id}

Response: 204 No Content
```

#### List Jobs

```
GET /api/v1/export/jobs?tenant_id=default

Response: 200 OK
{
  "items": [...],
  "total": 5
}
```

### Manual Execution

#### Trigger Job

```
POST /api/v1/export/jobs/{job_id}/run

Response: 202 Accepted
{
  "execution_id": "exec-001",
  "status": "running"
}
```

#### Get Execution Status

```
GET /api/v1/export/jobs/{job_id}/executions/{execution_id}

Response: 200 OK
{
  "execution_id": "exec-001",
  "status": "completed",
  "bundle_id": "bundle-001",
  "started_at": "2025-12-05T00:00:00Z",
  "completed_at": "2025-12-05T00:00:05Z"
}
```

### Bundle Retrieval

#### Get Bundle Manifest

```
GET /api/v1/export/bundles/{bundle_id}

Response: 200 OK
{
  "bundle_id": "bundle-001",
  "artifact_digest": "sha256:...",
  ...
}
```

#### Download Bundle

```
GET /api/v1/export/bundles/{bundle_id}/download

Response: 200 OK
Content-Type: application/json
Content-Disposition: attachment; filename="vex-export-2025-12-05.json"

[bundle content]
```

## Signing Configuration

### Enable Signing

```json
{
  "signing": {
    "enabled": true,
    "predicate_type": "stella.ops/vex@v1",
    "key_id": "signing-key-001",
    "include_rekor": true
  }
}
```

### Predicate Types

| Type | Description |
|------|-------------|
| `stella.ops/vex@v1` | VEX export attestation |
| `stella.ops/sbom@v1` | SBOM export attestation |
| `stella.ops/policy@v1` | Policy result export |

## Job Status

| Status | Description |
|--------|-------------|
| `idle` | Job is waiting for next scheduled run |
| `running` | Job is currently executing |
| `completed` | Last run completed successfully |
| `failed` | Last run failed |
| `disabled` | Job is disabled |

## Error Codes

| Code | Message |
|------|---------|
| `ERR_EXP_001` | Invalid schedule expression |
| `ERR_EXP_002` | Invalid destination config |
| `ERR_EXP_003` | Export failed |
| `ERR_EXP_004` | Signing failed |
| `ERR_EXP_005` | Job not found |

## Unblocks

This contract unblocks the following tasks:

- EXPORT-CONSOLE-23-001

## Related Contracts

- [Mirror Bundle Contract](./mirror-bundle.md) - Bundle format for air-gap
- [Risk Scoring Contract](./risk-scoring.md) - Score digest in exports