# GitHub Actions Consistency - Deployment Guide

## Overview

This guide provides step-by-step instructions for deploying the GitHub Actions consistency improvements to all branches and monitoring their execution.

## Pre-Deployment Checklist

Before deploying to any branch, ensure:

- [x] All reusable workflows are created and validated
- [x] All branch-specific workflows are updated
- [x] Property-based tests pass
- [x] Documentation is complete
- [x] Pre-commit hooks are configured

## Deployment Strategy

### Phase 1: Develop Branch (Current)

**Status**: ✅ READY FOR DEPLOYMENT

The develop branch workflow has been updated to use reusable workflows. The changes include:

1. **Reusable Test Workflow**: `.github/workflows/reusable-test.yml`
   - Comprehensive test matrix (Python 3.10-3.13, ubuntu/windows/macos)
   - System dependency installation (fd, ripgrep)
   - Quality checks (mypy, black, ruff, isort, bandit)
   - Coverage upload to Codecov

2. **Reusable Quality Workflow**: `.github/workflows/reusable-quality.yml`
   - Standardized quality gates
   - Consistent tool versions

3. **Composite System Setup Action**: `.github/actions/setup-system/action.yml`
   - OS-specific dependency installation
   - Verification steps

4. **Updated Develop Workflow**: `.github/workflows/develop-automation.yml`
   - Uses reusable test workflow
   - Maintains build and PR creation logic
   - No deployment to PyPI

#### Deployment Steps for Develop Branch

1. **Verify Current State**
   ```bash
   # Check that all workflow files exist
   ls -la .github/workflows/reusable-*.yml
   ls -la .github/actions/setup-system/action.yml
   ls -la .github/workflows/develop-automation.yml
   ```

2. **Run Local Validation**
   ```bash
   # Run property-based tests
   uv run pytest tests/test_workflows/ -v
   
   # Validate workflow syntax
   python validate_workflows.py
   ```

3. **Commit and Push to Develop**
   ```bash
   git add .github/
   git commit -m "feat: implement consistent GitHub Actions workflows

   - Add reusable test workflow with full test matrix
   - Add reusable quality check workflow
   - Add composite system setup action
   - Update develop-automation.yml to use reusable workflows
   - Ensure consistent testing across all branches
   
   Validates: Requirements 1.1, 1.5, 2.1, 3.1-3.5"
   
   git push origin develop
   ```

4. **Monitor First Execution**
   - Go to: https://github.com/[your-repo]/actions
   - Watch the "Develop Branch Automation" workflow
   - Verify all jobs complete successfully

5. **Verification Checklist**
   - [ ] Test job completes successfully
   - [ ] All quality checks pass (mypy, black, ruff, isort, bandit)
   - [ ] Test matrix runs on all platforms (ubuntu, windows, macos)
   - [ ] Test matrix runs on all Python versions (3.10, 3.11, 3.12, 3.13)
   - [ ] Coverage uploads to Codecov successfully
   - [ ] README stats are updated
   - [ ] Build job completes successfully
   - [ ] No deployment to PyPI occurs
   - [ ] PR to main is created (if applicable)

6. **Performance Baseline**
   Record execution times for comparison:
   - Test job duration: _____ minutes
   - Build job duration: _____ minutes
   - Total workflow duration: _____ minutes

### Phase 2: Release and Hotfix Workflows

**Status**: ✅ READY FOR DEPLOYMENT

#### Deployment Steps for Release Branch

1. **Verify Release Workflow**
   ```bash
   cat .github/workflows/release-automation.yml
   ```

2. **Create Test Release Branch**
   ```bash
   # Create a test release branch
   git checkout develop
   git pull origin develop
   git checkout -b release/v0.0.0-test
   git push origin release/v0.0.0-test
   ```

3. **Monitor Test Release Execution**
   - Go to: https://github.com/[your-repo]/actions
   - Watch the "Release Branch Automation" workflow
   - Verify tests run before deployment

4. **Verification Checklist**
   - [ ] Test job completes successfully
   - [ ] All quality checks pass
   - [ ] Test matrix runs on all platforms
   - [ ] Deployment job waits for test completion
   - [ ] Deployment job has `needs: [test]` dependency
   - [ ] PyPI deployment logic is present (but may skip on test branch)
   - [ ] PR to main is created

5. **Clean Up Test Branch**
   ```bash
   git push origin --delete release/v0.0.0-test
   ```

#### Deployment Steps for Hotfix Branch

1. **Verify Hotfix Workflow**
   ```bash
   cat .github/workflows/hotfix-automation.yml
   ```

2. **Create Test Hotfix Branch**
   ```bash
   git checkout main
   git pull origin main
   git checkout -b hotfix/test-deployment-check
   git push origin hotfix/test-deployment-check
   ```

3. **Monitor Test Hotfix Execution**
   - Go to: https://github.com/[your-repo]/actions
   - Watch the "Hotfix Branch Automation" workflow
   - Verify tests run before deployment

4. **Verification Checklist**
   - [ ] Test job completes successfully
   - [ ] All quality checks pass
   - [ ] Test matrix runs on all platforms
   - [ ] Deployment job waits for test completion
   - [ ] Configuration matches release workflow
   - [ ] PyPI deployment logic is present
   - [ ] PR to main is created

5. **Clean Up Test Branch**
   ```bash
   git push origin --delete hotfix/test-deployment-check
   ```

### Phase 3: Main Branch CI

**Status**: ✅ READY FOR DEPLOYMENT

#### Deployment Steps for Main Branch CI

1. **Verify CI Workflow**
   ```bash
   cat .github/workflows/ci.yml
   ```

2. **Create Test Feature Branch**
   ```bash
   git checkout develop
   git checkout -b feature/test-ci-workflow
   git push origin feature/test-ci-workflow
   ```

3. **Monitor CI Execution**
   - Go to: https://github.com/[your-repo]/actions
   - Watch the "CI" workflow
   - Verify all jobs execute

4. **Verification Checklist**
   - [ ] Test job completes successfully
   - [ ] Security check job completes
   - [ ] Documentation check job completes
   - [ ] Build check job completes
   - [ ] No deployment logic exists
   - [ ] Workflow triggers on push and PR

5. **Test PR to Main**
   ```bash
   # Create PR from feature branch to main
   # Verify CI runs on the PR
   ```

6. **Clean Up Test Branch**
   ```bash
   git push origin --delete feature/test-ci-workflow
   ```

## Monitoring and Feedback Collection

### Continuous Monitoring (First Week)

Monitor the following metrics for each workflow execution:

1. **Execution Times**
   - Test job duration
   - Quality check duration
   - Build duration
   - Total workflow duration
   - Compare against baseline

2. **Success Rates**
   - Test pass rate
   - Quality check pass rate
   - Deployment success rate (release/hotfix only)
   - Coverage upload success rate

3. **Resource Usage**
   - GitHub Actions minutes consumed
   - Concurrent job execution
   - Queue times

### Issue Tracking

Create a monitoring log to track any issues:

```markdown
## Workflow Execution Log

### Date: [YYYY-MM-DD]

#### Develop Branch
- Execution #1: ✅ Success (Duration: XX min)
- Execution #2: ✅ Success (Duration: XX min)
- Issues: None

#### Release Branch
- Execution #1: ✅ Success (Duration: XX min)
- Issues: None

#### Hotfix Branch
- Execution #1: ✅ Success (Duration: XX min)
- Issues: None

#### Main Branch CI
- Execution #1: ✅ Success (Duration: XX min)
- Issues: None
```

### Feedback Collection

Collect feedback from developers:

1. **Survey Questions**
   - Are the workflow execution times acceptable?
   - Are error messages clear and actionable?
   - Have you experienced any unexpected failures?
   - Are the quality checks catching issues effectively?
   - Do you have suggestions for improvements?

2. **Feedback Channels**
   - GitHub Issues with label `ci-cd-feedback`
   - Team meetings
   - Direct messages

### Performance Regression Detection

Monitor for performance regressions:

1. **Baseline Metrics** (Pre-deployment)
   - Record current workflow execution times
   - Record current test pass rates
   - Record current resource usage

2. **Regression Thresholds**
   - Execution time increase > 20%: Investigate
   - Test pass rate decrease > 5%: Investigate
   - Resource usage increase > 30%: Investigate

3. **Investigation Steps**
   - Review workflow logs
   - Compare with previous executions
   - Check for infrastructure issues
   - Verify test matrix configuration

## Rollback Procedures

If critical issues are discovered:

### Rollback Develop Branch

```bash
git checkout develop
git revert [commit-hash]
git push origin develop
```

### Rollback Release/Hotfix Workflows

```bash
# Restore previous workflow files
git checkout [previous-commit] -- .github/workflows/release-automation.yml
git checkout [previous-commit] -- .github/workflows/hotfix-automation.yml
git commit -m "rollback: revert to previous workflow configuration"
git push origin develop
```

### Rollback Main Branch CI

```bash
git checkout [previous-commit] -- .github/workflows/ci.yml
git commit -m "rollback: revert to previous CI configuration"
git push origin develop
```

## Post-Deployment Tasks

After successful deployment to all branches:

1. **Update Documentation**
   - [ ] Mark deployment as complete in tasks.md
   - [ ] Update CHANGELOG.md with workflow improvements
   - [ ] Update CONTRIBUTING.md with new CI/CD information

2. **Create Follow-up Tasks**
   - [ ] Optimize workflow execution times (if needed)
   - [ ] Add caching for dependencies (if beneficial)
   - [ ] Implement notification system (if requested)
   - [ ] Add performance regression tests (if needed)

3. **Team Communication**
   - [ ] Announce successful deployment
   - [ ] Share monitoring results
   - [ ] Provide troubleshooting resources
   - [ ] Schedule retrospective meeting

## Success Criteria

The deployment is considered successful when:

- ✅ All workflows execute without errors
- ✅ Test consistency is maintained across branches
- ✅ Deployment only occurs on release/hotfix branches
- ✅ No performance regressions detected
- ✅ Developer feedback is positive
- ✅ All property-based tests pass
- ✅ Documentation is complete and accurate

## Contact and Support

For issues or questions:

- Create GitHub Issue with label `ci-cd-support`
- Refer to troubleshooting guide: `docs/ci-cd-troubleshooting.md`
- Review migration guide: `docs/ci-cd-migration-guide.md`

---

**Last Updated**: 2025-11-20
**Status**: Ready for Deployment
