seaweedfs/test/s3/iam/README.md

SeaweedFS S3 IAM Integration Tests

This directory contains comprehensive integration tests for the SeaweedFS S3 API with Advanced IAM (Identity and Access Management) system integration.

Overview

Important: The STS service uses a stateless JWT design where all session information is embedded directly in the JWT token. No external session storage is required.

The S3 IAM integration tests validate the complete end-to-end functionality of:

• JWT Authentication: OIDC token-based authentication with S3 API
• Policy Enforcement: Fine-grained access control for S3 operations
• Stateless Session Management: JWT-based session token validation and expiration (no external storage)
• Role-Based Access Control (RBAC): IAM roles with different permission levels
• Bucket Policies: Resource-based access control integration
• Multipart Upload IAM: Policy enforcement for multipart operations
• Contextual Policies: IP-based, time-based, and conditional access control
• Presigned URLs: IAM-integrated temporary access URL generation

Test Architecture

Components Tested

1. S3 API Gateway - SeaweedFS S3-compatible API server with IAM integration
2. IAM Manager - Core IAM orchestration and policy evaluation
3. STS Service - Security Token Service for temporary credentials
4. Policy Engine - AWS IAM-compatible policy evaluation
5. Identity Providers - OIDC and LDAP authentication providers
6. Policy Store - Persistent policy storage using SeaweedFS filer

Test Framework

• S3IAMTestFramework: Comprehensive test utilities and setup
• Mock OIDC Provider: In-memory OIDC server with JWT signing
• Service Management: Automatic SeaweedFS service lifecycle management
• Resource Cleanup: Automatic cleanup of buckets and test data

Test Scenarios

1. Authentication Tests (TestS3IAMAuthentication)

• ✅ Valid JWT Token: Successful authentication with proper OIDC tokens
• ✅ Invalid JWT Token: Rejection of malformed or invalid tokens
• ✅ Expired JWT Token: Proper handling of expired authentication tokens

2. Policy Enforcement Tests (TestS3IAMPolicyEnforcement)

• ✅ Read-Only Policy: Users can only read objects and list buckets
• ✅ Write-Only Policy: Users can only create/delete objects but not read
• ✅ Admin Policy: Full access to all S3 operations including bucket management

3. Session Expiration Tests (TestS3IAMSessionExpiration)

• ✅ Short-Lived Sessions: Creation and validation of time-limited sessions
• ✅ Manual Expiration: Testing session expiration enforcement
• ✅ Expired Session Rejection: Proper access denial for expired sessions

4. Multipart Upload Tests (TestS3IAMMultipartUploadPolicyEnforcement)

• ✅ Admin Multipart Access: Full multipart upload capabilities
• ✅ Read-Only Denial: Rejection of multipart operations for read-only users
• ✅ Complete Upload Flow: Initiate → Upload Parts → Complete workflow

5. Bucket Policy Tests (TestS3IAMBucketPolicyIntegration)

• ✅ Public Read Policy: Bucket-level policies allowing public access
• ✅ Explicit Deny Policy: Bucket policies that override IAM permissions
• ✅ Policy CRUD Operations: Get/Put/Delete bucket policy operations

6. Contextual Policy Tests (TestS3IAMContextualPolicyEnforcement)

• 🔧 IP-Based Restrictions: Source IP validation in policy conditions
• 🔧 Time-Based Restrictions: Temporal access control policies
• 🔧 User-Agent Restrictions: Request context-based policy evaluation

7. Presigned URL Tests (TestS3IAMPresignedURLIntegration)

• ✅ URL Generation: IAM-validated presigned URL creation
• ✅ Permission Validation: Ensuring users have required permissions
• 🔧 HTTP Request Testing: Direct HTTP calls to presigned URLs

Quick Start

Prerequisites

1. Go 1.19+ with modules enabled
2. SeaweedFS Binary (weed) built with IAM support
3. Test Dependencies:

   go get github.com/stretchr/testify
   go get github.com/aws/aws-sdk-go
   go get github.com/golang-jwt/jwt/v5
   

Running Tests

Complete Test Suite

# Run all tests with service management
make test

# Quick test run (assumes services running)
make test-quick

Specific Test Categories

# Test only authentication
make test-auth

# Test only policy enforcement  
make test-policy

# Test only session expiration
make test-expiration

# Test only multipart uploads
make test-multipart

# Test only bucket policies
make test-bucket-policy

Development & Debugging

# Start services and keep running
make debug

# Show service logs
make logs

# Check service status
make status

# Watch for changes and re-run tests
make watch

Manual Service Management

If you prefer to manage services manually:

# Start services
make start-services

# Wait for services to be ready
make wait-for-services

# Run tests
make run-tests

# Stop services
make stop-services

Configuration

Test Configuration (test_config.json)

The test configuration defines:

• Identity Providers: OIDC and LDAP configurations
• IAM Roles: Role definitions with trust policies
• IAM Policies: Permission policies for different access levels
• Policy Stores: Persistent storage configurations for IAM policies and roles

Service Ports

Service	Port	Purpose
Master	9333	Cluster coordination
Volume	8080	Object storage
Filer	8888	Metadata & IAM storage
S3 API	8333	S3-compatible API with IAM

Environment Variables

# SeaweedFS binary location
export WEED_BINARY=../../../weed

# Service ports (optional)
export S3_PORT=8333
export FILER_PORT=8888  
export MASTER_PORT=9333
export VOLUME_PORT=8080

# Test timeout
export TEST_TIMEOUT=30m

# Log level (0-4)
export LOG_LEVEL=2

Test Data & Cleanup

Automatic Cleanup

The test framework automatically:

• 🗑️ Deletes test buckets created during tests
• 🗑️ Removes test objects and multipart uploads
• 🗑️ Cleans up IAM sessions and temporary tokens
• 🗑️ Stops services after test completion

Manual Cleanup

# Clean everything
make clean

# Clean while keeping services running
rm -rf test-volume-data/

Extending Tests

Adding New Test Scenarios

1. Create Test Function:

   func TestS3IAMNewFeature(t *testing.T) {
       framework := NewS3IAMTestFramework(t)
       defer framework.Cleanup()
          
       // Test implementation
   }
   

2. Use Test Framework:

   // Create authenticated S3 client
   s3Client, err := framework.CreateS3ClientWithJWT("user", "TestRole")
   require.NoError(t, err)
      
   // Test S3 operations
   err = framework.CreateBucket(s3Client, "test-bucket")
   require.NoError(t, err)
   

3. Add to Makefile:

   test-new-feature: ## Test new feature
   	go test -v -run TestS3IAMNewFeature ./...
   

Creating Custom Policies

Add policies to test_config.json:

{
  "policies": {
    "CustomPolicy": {
      "Version": "2012-10-17",
      "Statement": [
        {
          "Effect": "Allow",
          "Action": ["s3:GetObject"],
          "Resource": ["arn:seaweed:s3:::specific-bucket/*"],
          "Condition": {
            "StringEquals": {
              "s3:prefix": ["allowed-prefix/"]
            }
          }
        }
      ]
    }
  }
}

Adding Identity Providers

1. Mock Provider Setup:

   // In test framework
   func (f *S3IAMTestFramework) setupCustomProvider() {
       provider := custom.NewCustomProvider("test-custom")
       // Configure and register
   }
   

2. Configuration:

   {
     "providers": {
       "custom": {
         "test-custom": {
           "endpoint": "http://localhost:8080",
           "clientId": "custom-client"
         }
       }
     }
   }
   

Troubleshooting

Common Issues

1. Services Not Starting

# Check if ports are available
netstat -an | grep -E "(8333|8888|9333|8080)"

# Check service logs
make logs

# Try different ports
export S3_PORT=18333
make start-services

2. JWT Token Issues

# Verify OIDC mock server
curl http://localhost:8080/.well-known/openid_configuration

# Check JWT token format in logs
make logs | grep -i jwt

3. Permission Denied Errors

# Verify IAM configuration
cat test_config.json | jq '.policies'

# Check policy evaluation in logs  
export LOG_LEVEL=4
make start-services

4. Test Timeouts

# Increase timeout
export TEST_TIMEOUT=60m
make test

# Run individual tests
make test-auth

Debug Mode

Start services in debug mode to inspect manually:

# Start and keep running
make debug

# In another terminal, run specific operations
aws s3 ls --endpoint-url http://localhost:8333

# Stop when done (Ctrl+C in debug terminal)

Log Analysis

# Service-specific logs
tail -f weed-s3.log       # S3 API server
tail -f weed-filer.log    # Filer (IAM storage)  
tail -f weed-master.log   # Master server
tail -f weed-volume.log   # Volume server

# Filter for IAM-related logs
make logs | grep -i iam
make logs | grep -i jwt
make logs | grep -i policy

Performance Testing

Benchmarks

# Run performance benchmarks
make benchmark

# Profile memory usage  
go test -bench=. -memprofile=mem.prof
go tool pprof mem.prof

Load Testing

For load testing with IAM:

1. Create Multiple Clients:

   // Generate multiple JWT tokens
   tokens := framework.GenerateMultipleJWTTokens(100)
      
   // Create concurrent clients
   var wg sync.WaitGroup
   for _, token := range tokens {
       wg.Add(1)
       go func(token string) {
           defer wg.Done()
           // Perform S3 operations
       }(token)
   }
   wg.Wait()
   

2. Measure Performance:

   # Run with verbose output
   go test -v -bench=BenchmarkS3IAMOperations
   

CI/CD Integration

GitHub Actions

name: S3 IAM Integration Tests
on: [push, pull_request]

jobs:
  s3-iam-test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-go@v3
        with:
          go-version: '1.19'
      
      - name: Build SeaweedFS
        run: go build -o weed ./main.go
      
      - name: Run S3 IAM Tests  
        run: |
          cd test/s3/iam
          make ci          

Jenkins Pipeline

pipeline {
    agent any
    stages {
        stage('Build') {
            steps {
                sh 'go build -o weed ./main.go'
            }
        }
        stage('S3 IAM Tests') {
            steps {
                dir('test/s3/iam') {
                    sh 'make ci'
                }
            }
            post {
                always {
                    dir('test/s3/iam') {
                        sh 'make clean'
                    }
                }
            }
        }
    }
}

Contributing

Adding New Tests

1. Follow Test Patterns:

   • Use S3IAMTestFramework for setup
   • Include cleanup with defer framework.Cleanup()
   • Use descriptive test names and subtests
   • Assert both success and failure cases

2. Update Documentation:

   • Add test descriptions to this README
   • Include Makefile targets for new test categories
   • Document any new configuration options

3. Ensure Test Reliability:

   • Tests should be deterministic and repeatable
   • Include proper error handling and assertions
   • Use appropriate timeouts for async operations

Code Style

• Follow standard Go testing conventions
• Use require.NoError() for critical assertions
• Use assert.Equal() for value comparisons
• Include descriptive error messages in assertions

Support

For issues with S3 IAM integration tests:

1. Check Logs: Use make logs to inspect service logs
2. Verify Configuration: Ensure test_config.json is correct
3. Test Services: Run make status to check service health
4. Clean Environment: Try make clean && make test

License

This test suite is part of the SeaweedFS project and follows the same licensing terms.