feat: Travis to GitHub Actions CI

.github/dependabot.yml

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+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+    commit-message:
+      prefix: "build"
+      include: scope
+    groups:
+      github-actions:
+        patterns:
+          - "*"

.github/workflows/README.md

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+# GitHub Actions Workflows
+
+This directory contains the CI/CD workflows for the DSBulk project.
+
+## Workflows Overview
+
+### 1. Build and Test (`build.yml`)
+**Triggers**: Push to main/master, Pull Requests, Manual dispatch
+
+**Purpose**: Primary CI workflow for fast feedback on code changes
+
+**What it does**:
+- Builds the project with JDK 8
+- Runs unit tests with JDK 8, 11 and 17
+- Publishes test results
+- Caches Maven dependencies for faster builds
+
+**Duration**: ~5-10 minutes
+
+### 2. Integration Tests (`integration-tests.yml`)
+**Triggers**: Pull Requests, Manual dispatch
+
+**Purpose**: Comprehensive integration testing with Docker-based Cassandra/DSE
+
+**What it does**:
+- Tests against Cassandra 3.11, 4.0, 4.1, 5.0
+- Tests against DSE 5.1.49, 6.8.62, 6.9.18
+- Uses Docker service containers (no CCM required)
+- Supports medium and long test profiles
+- Publishes detailed test results
+
+**Duration**: ~15-30 minutes per matrix job
+
+**Manual Trigger Options**:
+- `test_profile`: Choose between `medium` (default) or `long` test profiles
+
+### 3. Release (`release.yml`)
+**Triggers**: Git tags (v*), Manual dispatch
+
+**Purpose**: Build and publish release artifacts
+
+**What it does**:
+- Builds with release profile
+- Runs full test suite (medium + long)
+- Generates distribution artifacts:
+  - `dsbulk-{version}.tar.gz` (Linux/Mac)
+  - `dsbulk-{version}.zip` (Windows)
+  - `dsbulk-{version}.jar` (Standalone)
+- Creates SHA256 checksums
+- Uploads to GitHub Releases
+- Generates release notes
+
+**Duration**: ~30-60 minutes
+
+**Manual Trigger Options**:
+- `version`: Specify version number (e.g., "1.11.1")
+
+**Creating a Release**:
+```bash
+# Tag and push
+git tag -a v1.11.1 -m "Release 1.11.1"
+git push origin v1.11.1
+
+# Or trigger manually via GitHub UI
+```
+
+### 4. Nightly Build (`nightly.yml`)
+**Triggers**: Scheduled (Mon-Fri at 6 AM UTC), Manual dispatch
+
+**Purpose**: Comprehensive nightly testing across full matrix
+
+**What it does**:
+- Runs full matrix tests (all Cassandra + DSE versions)
+- Executes long-running test profiles
+- Generates distribution artifacts
+- Creates build summary
+- Optional Slack notifications
+
+**Duration**: ~1-2 hours
+
+**Manual Trigger Options**:
+- `generate_artifacts`: Enable/disable artifact generation (default: true)
+
+### 5. Code Quality (`code-quality.yml`)
+**Triggers**: Push to main/master, Pull Requests, Manual dispatch
+
+**Purpose**: Code quality checks and coverage reporting
+
+**What it does**:
+- Generates JaCoCo code coverage reports
+- Uploads coverage to Codecov
+- Checks code formatting (fmt-maven-plugin)
+- Validates license headers
+- Runs SpotBugs analysis
+- Checks for dependency vulnerabilities
+- Posts coverage comments on PRs
+
+**Duration**: ~10-15 minutes
+
+## Workflow Dependencies
+
+```
+build.yml (fast feedback)
+    ↓
+integration-tests.yml (comprehensive testing)
+    ↓
+code-quality.yml (quality checks)
+    ↓
+release.yml (on tags) or nightly.yml (scheduled)
+```
+
+## Docker Images Used
+
+### Cassandra (Public - Docker Hub)
+- `cassandra:3.11` - Latest 3.11.x
+- `cassandra:4.0` - Latest 4.0.x
+- `cassandra:4.1` - Latest 4.1.x
+- `cassandra:5.0` - Latest 5.0.x
+
+### DataStax Enterprise (Public - Docker Hub)
+- `datastax/dse-server:5.1.48`
+- `datastax/dse-server:6.8.61`
+- `datastax/dse-server:6.9.17`
+
+**Note**: All images are publicly available - no credentials required!
+
+## Secrets Configuration
+
+### Required Secrets
+None! All dependencies are available via Maven Central, and Docker images are public.
+
+### Optional Secrets
+- `SLACK_WEBHOOK_URL` - For Slack notifications (nightly builds)
+- `GPG_PRIVATE_KEY` - For signing releases (if needed)
+- `GPG_PASSPHRASE` - For signing releases (if needed)
+- `CODECOV_TOKEN` - For Codecov integration (optional, works without it for public repos)
+
+## Manual Workflow Triggers
+
+All workflows support manual triggering via GitHub UI:
+
+1. Go to **Actions** tab
+2. Select the workflow
+3. Click **Run workflow**
+4. Choose branch and options
+5. Click **Run workflow**
+
+## Caching Strategy
+
+Maven dependencies are cached using `actions/cache@v4`:
+- **Cache key**: Based on `pom.xml` files
+- **Cache path**: `~/.m2/repository`
+- **Restore keys**: Fallback to OS-specific Maven cache
+
+This significantly speeds up builds (2-3x faster after first run).
+
+## Test Result Reporting
+
+All workflows use `EnricoMi/publish-unit-test-result-action@v2` to:
+- Parse JUnit XML reports
+- Create check runs with test results
+- Show pass/fail statistics
+- Highlight flaky tests
+- Comment on PRs with results
+
+## Artifact Retention
+
+| Artifact Type | Retention Period |
+|---------------|------------------|
+| Test results | 7-14 days |
+| Coverage reports | 30 days |
+| Nightly builds | 30 days |
+| Release artifacts | 90 days |
+| GitHub Releases | Permanent |
+
+## Troubleshooting
+
+### Build Failures
+
+**Maven dependency issues**:
+```bash
+# Clear cache and retry
+rm -rf ~/.m2/repository
+```
+
+**Docker service not ready**:
+- Workflows include health checks and wait loops
+- Increase timeout if needed (currently 30 attempts × 10s = 5 minutes)
+
+**Test failures**:
+- Check test reports in artifacts
+- Review logs for specific failure reasons
+- CCM-dependent tests may need adaptation
+
+### Performance Issues
+
+**Slow builds**:
+- Check if Maven cache is working
+- Consider reducing test matrix for PRs
+- Use `workflow_dispatch` with specific options
+
+**Timeout issues**:
+- Default timeout: 4 hours (matching Jenkins)
+- Adjust in workflow file if needed
+
+## Migration from Jenkins/Travis
+
+### Key Differences
+
+| Aspect | Jenkins/Travis | GitHub Actions |
+|--------|---------------|----------------|
+| Infrastructure | CCM | Docker containers |
+| Cassandra versions | 2.1-3.11 | 3.11, 4.0, 4.1, 5.0 |
+| DSE versions | 4.7-6.8 | 5.1, 6.8, 6.9 |
+| Artifacts | Jenkins storage | GitHub Releases |
+| Secrets | Artifactory creds | None required |
+
+### Gradual Migration
+
+1. **Phase 1**: Run GitHub Actions in parallel with Jenkins
+2. **Phase 2**: Validate results match
+3. **Phase 3**: Switch primary CI to GitHub Actions
+4. **Phase 4**: Deprecate Jenkins/Travis
+
+## Contributing
+
+When adding new workflows:
+1. Follow existing naming conventions
+2. Add comprehensive comments
+3. Include manual trigger options
+4. Update this README
+5. Test thoroughly before merging
+
+## Support
+
+For issues or questions:
+- Check workflow logs in Actions tab
+- Review [ci-modernization.md](../../ci-modernization.md) for details
+- Open an issue with workflow run link

.github/workflows/build.yml

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+name: Build and Test
+
+on:
+  push:
+    branches: [ 1.x ]
+  pull_request:
+    branches: [ 1.x ]
+  workflow_dispatch:
+
+# cancel same workflows in progress for pull request branches
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/1.x' }}
+
+jobs:
+  build:
+    name: Build with JDK 8
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+
+      - name: Set up JDK 8
+        uses: actions/setup-java@v5
+        with:
+          java-version: '8'
+          distribution: 'temurin'
+          cache: 'maven'
+
+      - name: Display Java version
+        run: |
+          java -version
+          mvn -version
+
+      - name: Build with Maven (JDK 8)
+        run: mvn clean install -DskipTests -B -V
+
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v6
+        with:
+          name: maven-build-artifacts
+          path: |
+            **/target/*.jar
+            **/target/classes/
+            **/target/test-classes/
+          retention-days: 1
+
+      - name: Upload Maven repository
+        uses: actions/upload-artifact@v6
+        with:
+          name: maven-repository
+          path: ~/.m2/repository
+          retention-days: 1
+
+  test:
+    name: Test with JDK ${{ matrix.java }}
+    needs: build
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        java: ['8', '11', '17']
+      fail-fast: false
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+
+      - name: Download build artifacts
+        uses: actions/download-artifact@v6
+        with:
+          name: maven-build-artifacts
+
+      - name: Download Maven repository
+        uses: actions/download-artifact@v6
+        with:
+          name: maven-repository
+          path: ~/.m2/repository
+
+      - name: Set up JDK ${{ matrix.java }}
+        uses: actions/setup-java@v5
+        with:
+          java-version: ${{ matrix.java }}
+          distribution: 'temurin'
+
+      - name: Display Java version
+        run: |
+          java -version
+          mvn -version
+
+      - name: Run unit tests with JDK ${{ matrix.java }}
+        run: mvn test -B -V -Dmaven.main.skip=true
+        continue-on-error: false
+
+      - name: Publish Test Results
+        uses: EnricoMi/publish-unit-test-result-action@v2
+        if: always()
+        with:
+          files: |
+            **/target/surefire-reports/TEST-*.xml
+          check_name: Test Results (JDK ${{ matrix.java }})
+
+      - name: Upload test results
+        if: always()
+        uses: actions/upload-artifact@v6
+        with:
+          name: test-results-jdk${{ matrix.java }}
+          path: |
+            **/target/surefire-reports/
+            **/target/failsafe-reports/
+          retention-days: 7